161
149
'indent_type': None,
162
150
'encoding': None,
163
151
'default_encoding': None,
165
'write_empty_values': False,
173
raise ImportError('compiler module not available')
174
p = compiler.parse(s)
175
return p.getChildren()[1].getChildren()[0].getChildren()[1]
178
class UnknownType(Exception):
182
class Builder(object):
185
m = getattr(self, 'build_' + o.__class__.__name__, None)
187
raise UnknownType(o.__class__.__name__)
190
def build_List(self, o):
191
return map(self.build, o.getChildren())
193
def build_Const(self, o):
196
def build_Dict(self, o):
198
i = iter(map(self.build, o.getChildren()))
203
def build_Tuple(self, o):
204
return tuple(self.build_List(o))
206
def build_Name(self, o):
211
if o.name == 'False':
215
raise UnknownType('Undefined Name')
217
def build_Add(self, o):
218
real, imag = map(self.build_Const, o.getChildren())
222
raise UnknownType('Add')
223
if not isinstance(imag, complex) or imag.real != 0.0:
224
raise UnknownType('Add')
227
def build_Getattr(self, o):
228
parent = self.build(o.expr)
229
return getattr(parent, o.attrname)
231
def build_UnarySub(self, o):
232
return -self.build_Const(o.getChildren()[0])
234
def build_UnaryAdd(self, o):
235
return self.build_Const(o.getChildren()[0])
244
return _builder.build(getObj(s))
248
154
class ConfigObjError(SyntaxError):
250
156
This is the base class for all errors that ConfigObj raises.
251
157
It is a subclass of SyntaxError.
159
>>> raise ConfigObjError
160
Traceback (most recent call last):
253
163
def __init__(self, message='', line_number=None, line=''):
255
165
self.line_number = line_number
166
self.message = message
256
167
SyntaxError.__init__(self, message)
259
169
class NestingError(ConfigObjError):
261
171
This error indicates a level of nesting that doesn't match.
173
>>> raise NestingError
174
Traceback (most recent call last):
265
178
class ParseError(ConfigObjError):
267
180
This error indicates that a line is badly written.
268
181
It is neither a valid ``key = value`` line,
269
182
nor a valid section marker line.
273
class ReloadError(IOError):
275
A 'reload' operation failed.
276
This exception is a subclass of ``IOError``.
279
IOError.__init__(self, 'reload failed, filename is not set.')
185
Traceback (most recent call last):
282
189
class DuplicateError(ConfigObjError):
284
191
The keyword or section specified already exists.
193
>>> raise DuplicateError
194
Traceback (most recent call last):
288
198
class ConfigspecError(ConfigObjError):
290
200
An error occured whilst parsing a configspec.
202
>>> raise ConfigspecError
203
Traceback (most recent call last):
294
207
class InterpolationError(ConfigObjError):
295
208
"""Base class for the two interpolation errors."""
298
class InterpolationLoopError(InterpolationError):
210
class InterpolationDepthError(InterpolationError):
299
211
"""Maximum interpolation depth exceeded in string interpolation."""
301
213
def __init__(self, option):
215
>>> raise InterpolationDepthError('yoda')
216
Traceback (most recent call last):
217
InterpolationDepthError: max interpolation depth exceeded in value "yoda".
302
219
InterpolationError.__init__(
304
'interpolation loop detected in value "%s".' % option)
221
'max interpolation depth exceeded in value "%s".' % option)
307
223
class RepeatSectionError(ConfigObjError):
309
225
This error indicates additional sections in a section with a
310
226
``__many__`` (repeated) section.
228
>>> raise RepeatSectionError
229
Traceback (most recent call last):
314
233
class MissingInterpolationOption(InterpolationError):
315
234
"""A value specified for interpolation was missing."""
317
236
def __init__(self, option):
238
>>> raise MissingInterpolationOption('yoda')
239
Traceback (most recent call last):
240
MissingInterpolationOption: missing option "yoda" in interpolation.
318
242
InterpolationError.__init__(
320
244
'missing option "%s" in interpolation.' % option)
323
class UnreprError(ConfigObjError):
324
"""An error parsing in unrepr mode."""
328
class InterpolationEngine(object):
330
A helper class to help perform string interpolation.
332
This class is an abstract base class; its descendants perform
336
# compiled regexp to use in self.interpolate()
337
_KEYCRE = re.compile(r"%\(([^)]*)\)s")
339
def __init__(self, section):
340
# the Section instance that "owns" this engine
341
self.section = section
344
def interpolate(self, key, value):
345
def recursive_interpolate(key, value, section, backtrail):
346
"""The function that does the actual work.
348
``value``: the string we're trying to interpolate.
349
``section``: the section in which that string was found
350
``backtrail``: a dict to keep track of where we've been,
351
to detect and prevent infinite recursion loops
353
This is similar to a depth-first-search algorithm.
355
# Have we been here already?
356
if (key, section.name) in backtrail:
357
# Yes - infinite loop detected
358
raise InterpolationLoopError(key)
359
# Place a marker on our backtrail so we won't come back here again
360
backtrail[(key, section.name)] = 1
362
# Now start the actual work
363
match = self._KEYCRE.search(value)
365
# The actual parsing of the match is implementation-dependent,
366
# so delegate to our helper function
367
k, v, s = self._parse_match(match)
369
# That's the signal that no further interpolation is needed
372
# Further interpolation may be needed to obtain final value
373
replacement = recursive_interpolate(k, v, s, backtrail)
374
# Replace the matched string with its final value
375
start, end = match.span()
376
value = ''.join((value[:start], replacement, value[end:]))
377
new_search_start = start + len(replacement)
378
# Pick up the next interpolation key, if any, for next time
379
# through the while loop
380
match = self._KEYCRE.search(value, new_search_start)
382
# Now safe to come back here again; remove marker from backtrail
383
del backtrail[(key, section.name)]
387
# Back in interpolate(), all we have to do is kick off the recursive
388
# function with appropriate starting values
389
value = recursive_interpolate(key, value, self.section, {})
393
def _fetch(self, key):
394
"""Helper function to fetch values from owning section.
396
Returns a 2-tuple: the value, and the section where it was found.
398
# switch off interpolation before we try and fetch anything !
399
save_interp = self.section.main.interpolation
400
self.section.main.interpolation = False
402
# Start at section that "owns" this InterpolationEngine
403
current_section = self.section
405
# try the current section first
406
val = current_section.get(key)
410
val = current_section.get('DEFAULT', {}).get(key)
413
# move up to parent and try again
414
# top-level's parent is itself
415
if current_section.parent is current_section:
416
# reached top level, time to give up
418
current_section = current_section.parent
420
# restore interpolation to previous value before returning
421
self.section.main.interpolation = save_interp
423
raise MissingInterpolationOption(key)
424
return val, current_section
427
def _parse_match(self, match):
428
"""Implementation-dependent helper function.
430
Will be passed a match object corresponding to the interpolation
431
key we just found (e.g., "%(foo)s" or "$foo"). Should look up that
432
key in the appropriate config file section (using the ``_fetch()``
433
helper function) and return a 3-tuple: (key, value, section)
435
``key`` is the name of the key we're looking for
436
``value`` is the value found for that key
437
``section`` is a reference to the section where it was found
439
``key`` and ``section`` should be None if no further
440
interpolation should be performed on the resulting value
441
(e.g., if we interpolated "$$" and returned "$").
443
raise NotImplementedError()
447
class ConfigParserInterpolation(InterpolationEngine):
448
"""Behaves like ConfigParser."""
449
_KEYCRE = re.compile(r"%\(([^)]*)\)s")
451
def _parse_match(self, match):
453
value, section = self._fetch(key)
454
return key, value, section
458
class TemplateInterpolation(InterpolationEngine):
459
"""Behaves like string.Template."""
461
_KEYCRE = re.compile(r"""
463
(?P<escaped>\$) | # Two $ signs
464
(?P<named>[_a-z][_a-z0-9]*) | # $name format
465
{(?P<braced>[^}]*)} # ${name} format
467
""", re.IGNORECASE | re.VERBOSE)
469
def _parse_match(self, match):
470
# Valid name (in or out of braces): fetch value from section
471
key = match.group('named') or match.group('braced')
473
value, section = self._fetch(key)
474
return key, value, section
475
# Escaped delimiter (e.g., $$): return single delimiter
476
if match.group('escaped') is not None:
477
# Return None for key and section to indicate it's time to stop
478
return None, self._delimiter, None
479
# Anything else: ignore completely, just return it unchanged
480
return None, match.group(), None
483
interpolation_engines = {
484
'configparser': ConfigParserInterpolation,
485
'template': TemplateInterpolation,
489
def __newobj__(cls, *args):
491
return cls.__new__(cls, *args)
493
246
class Section(dict):
495
248
A dictionary-like object that represents a section in a config file.
497
It does string interpolation if the 'interpolation' attribute
250
It does string interpolation if the 'interpolate' attribute
498
251
of the 'main' object is set to True.
500
Interpolation is tried first from this object, then from the 'DEFAULT'
501
section of this object, next from the parent and its 'DEFAULT' section,
502
and so on until the main object is reached.
253
Interpolation is tried first from the 'DEFAULT' section of this object,
254
next from the 'DEFAULT' section of the parent, lastly the main object.
504
256
A Section will behave like an ordered dictionary - following the
505
257
order of the ``scalars`` and ``sections`` attributes.
506
258
You can use this to change the order of members.
508
260
Iteration follows the order: scalars, then sections.
512
def __setstate__(self, state):
513
dict.update(self, state[0])
514
self.__dict__.update(state[1])
516
def __reduce__(self):
517
state = (dict(self), self.__dict__)
518
return (__newobj__, (self.__class__,), state)
263
_KEYCRE = re.compile(r"%\(([^)]*)\)s|.")
521
265
def __init__(self, parent, depth, main, indict=None, name=None):
535
279
# level of nesting depth of this Section
536
280
self.depth = depth
281
# the sequence of scalar values in this Section
283
# the sequence of sections in this Section
537
285
# purely for information
541
# we do this explicitly so that __setitem__ is used properly
542
# (rather than just passing to ``dict.__init__``)
543
for entry, value in indict.iteritems():
547
def _initialise(self):
548
# the sequence of scalar values in this Section
550
# the sequence of sections in this Section
552
287
# for comments :-)
553
288
self.comments = {}
554
289
self.inline_comments = {}
556
self.configspec = None
558
293
self.defaults = []
559
self.default_values = {}
562
def _interpolate(self, key, value):
564
# do we already have an interpolation engine?
565
engine = self._interpolation_engine
566
except AttributeError:
567
# not yet: first time running _interpolate(), so pick the engine
568
name = self.main.interpolation
569
if name == True: # note that "if name:" would be incorrect here
570
# backwards-compatibility: interpolation=True means use default
571
name = DEFAULT_INTERPOLATION
572
name = name.lower() # so that "Template", "template", etc. all work
573
class_ = interpolation_engines.get(name, None)
575
# invalid value for self.main.interpolation
576
self.main.interpolation = False
295
# we do this explicitly so that __setitem__ is used properly
296
# (rather than just passing to ``dict.__init__``)
298
self[entry] = indict[entry]
300
def _interpolate(self, value):
301
"""Nicked from ConfigParser."""
302
depth = MAX_INTERPOL_DEPTH
303
# loop through this until it's done
306
if value.find("%(") != -1:
307
value = self._KEYCRE.sub(self._interpolation_replace, value)
579
# save reference to engine so we don't have to do this again
580
engine = self._interpolation_engine = class_(self)
581
# let the engine do the actual work
582
return engine.interpolate(key, value)
311
raise InterpolationDepthError(value)
314
def _interpolation_replace(self, match):
320
# switch off interpolation before we try and fetch anything !
321
self.main.interpolation = False
322
# try the 'DEFAULT' member of *this section* first
323
val = self.get('DEFAULT', {}).get(s)
324
# try the 'DEFAULT' member of the *parent section* next
326
val = self.parent.get('DEFAULT', {}).get(s)
327
# last, try the 'DEFAULT' member of the *main section*
329
val = self.main.get('DEFAULT', {}).get(s)
330
self.main.interpolation = True
332
raise MissingInterpolationOption(s)
585
335
def __getitem__(self, key):
586
336
"""Fetch the item and do string interpolation."""
587
337
val = dict.__getitem__(self, key)
588
if self.main.interpolation and isinstance(val, basestring):
589
return self._interpolate(key, val)
338
if self.main.interpolation and isinstance(val, StringTypes):
339
return self._interpolate(val)
593
def __setitem__(self, key, value, unrepr=False):
342
def __setitem__(self, key, value):
595
344
Correctly set a value.
597
346
Making dictionary values Section instances.
598
347
(We have to special case 'Section' instances - which are also dicts)
600
349
Keys must be strings.
601
350
Values need only be strings (or lists of strings) if
602
351
``main.stringify`` is set.
604
``unrepr`` must be set when setting a value to a dictionary, without
605
creating a new sub-section.
607
if not isinstance(key, basestring):
608
raise ValueError('The key "%s" is not a string.' % key)
353
if not isinstance(key, StringTypes):
354
raise ValueError, 'The key "%s" is not a string.' % key
610
355
# add the comment
611
if key not in self.comments:
356
if not self.comments.has_key(key):
612
357
self.comments[key] = []
613
358
self.inline_comments[key] = ''
614
359
# remove the entry from defaults
667
def decode(self, encoding):
669
Decode all strings and values to unicode, using the specified encoding.
671
Works with subsections and list values.
673
Uses the ``walk`` method.
675
Testing ``encode`` and ``decode``.
677
>>> m.decode('ascii')
678
>>> def testuni(val):
679
... for entry in val:
680
... if not isinstance(entry, unicode):
681
... print >> sys.stderr, type(entry)
682
... raise AssertionError, 'decode failed.'
683
... if isinstance(val[entry], dict):
684
... testuni(val[entry])
685
... elif not isinstance(val[entry], unicode):
686
... raise AssertionError, 'decode failed.'
688
>>> m.encode('ascii')
692
def decode(section, key, encoding=encoding):
695
if isinstance(val, (list, tuple)):
698
newval.append(entry.decode(encoding))
699
elif isinstance(val, dict):
702
newval = val.decode(encoding)
703
newkey = key.decode(encoding)
704
section.rename(key, newkey)
705
section[newkey] = newval
706
# using ``call_on_sections`` allows us to modify section names
707
self.walk(decode, call_on_sections=True)
709
def encode(self, encoding):
711
Encode all strings and values from unicode,
712
using the specified encoding.
714
Works with subsections and list values.
715
Uses the ``walk`` method.
717
def encode(section, key, encoding=encoding):
720
if isinstance(val, (list, tuple)):
723
newval.append(entry.encode(encoding))
724
elif isinstance(val, dict):
727
newval = val.encode(encoding)
728
newkey = key.encode(encoding)
729
section.rename(key, newkey)
730
section[newkey] = newval
731
self.walk(encode, call_on_sections=True)
733
def istrue(self, key):
734
"""A deprecated version of ``as_bool``."""
735
warn('use of ``istrue`` is deprecated. Use ``as_bool`` method '
736
'instead.', DeprecationWarning)
737
return self.as_bool(key)
947
739
def as_bool(self, key):
949
741
Accepts a key as input. The corresponding value must be a string or
950
742
the objects (``True`` or 1) or (``False`` or 0). We allow 0 and 1 to
951
743
retain compatibility with Python 2.2.
953
If the string is one of ``True``, ``On``, ``Yes``, or ``1`` it returns
745
If the string is one of ``True``, ``On``, ``Yes``, or ``1`` it returns
956
If the string is one of ``False``, ``Off``, ``No``, or ``0`` it returns
748
If the string is one of ``False``, ``Off``, ``No``, or ``0`` it returns
959
751
``as_bool`` is not case sensitive.
961
753
Any other input will raise a ``ValueError``.
963
755
>>> a = ConfigObj()
964
756
>>> a['a'] = 'fish'
965
757
>>> a.as_bool('a')
1190
950
'true': True, 'false': False,
1194
def __init__(self, infile=None, options=None, _inspec=False, **kwargs):
953
def __init__(self, infile=None, options=None, **kwargs):
1196
Parse a config file or create a config file object.
955
Parse or create a config file object.
1198
957
``ConfigObj(infile=None, options=None, **kwargs)``
1200
self._inspec = _inspec
963
# keyword arguments take precedence over an options dictionary
964
options.update(kwargs)
1201
965
# init the superclass
1202
966
Section.__init__(self, self, 0, self)
1204
infile = infile or []
1205
options = dict(options or {})
1207
# keyword arguments take precedence over an options dictionary
1208
options.update(kwargs)
1210
options['list_values'] = False
1212
968
defaults = OPTION_DEFAULTS.copy()
969
for entry in options.keys():
970
if entry not in defaults.keys():
971
raise TypeError, 'Unrecognised option "%s".' % entry
1213
972
# TODO: check the values too.
1214
for entry in options:
1215
if entry not in defaults:
1216
raise TypeError('Unrecognised option "%s".' % entry)
1218
974
# Add any explicit options to the defaults
1219
975
defaults.update(options)
1220
self._initialise(defaults)
1221
configspec = defaults['configspec']
1222
self._original_configspec = configspec
1223
self._load(infile, configspec)
1226
def _load(self, infile, configspec):
1227
if isinstance(infile, basestring):
977
# initialise a few variables
980
self.raise_errors = defaults['raise_errors']
981
self.interpolation = defaults['interpolation']
982
self.list_values = defaults['list_values']
983
self.create_empty = defaults['create_empty']
984
self.file_error = defaults['file_error']
985
self.stringify = defaults['stringify']
986
self.indent_type = defaults['indent_type']
987
self.encoding = defaults['encoding']
988
self.default_encoding = defaults['default_encoding']
992
self.initial_comment = []
993
self.final_comment = []
995
if isinstance(infile, StringTypes):
1228
996
self.filename = infile
1229
997
if os.path.isfile(infile):
1230
h = open(infile, 'rb')
1231
infile = h.read() or []
998
infile = open(infile).read() or []
1233
999
elif self.file_error:
1234
1000
# raise an error if the file doesn't exist
1235
raise IOError('Config file not found: "%s".' % self.filename)
1001
raise IOError, 'Config file not found: "%s".' % self.filename
1237
1003
# file doesn't already exist
1238
1004
if self.create_empty:
1239
1005
# this is a good test that the filename specified
1240
# isn't impossible - like on a non-existent device
1006
# isn't impossible - like on a non existent device
1241
1007
h = open(infile, 'w')
1246
1011
elif isinstance(infile, (list, tuple)):
1247
1012
infile = list(infile)
1249
1013
elif isinstance(infile, dict):
1250
1014
# initialise self
1251
1015
# the Section class handles creating subsections
1252
1016
if isinstance(infile, ConfigObj):
1253
1017
# get a copy of our ConfigObj
1254
1018
infile = infile.dict()
1256
1019
for entry in infile:
1257
1020
self[entry] = infile[entry]
1258
1021
del self._errors
1260
if configspec is not None:
1261
self._handle_configspec(configspec)
1022
if defaults['configspec'] is not None:
1023
self._handle_configspec(defaults['configspec'])
1263
1025
self.configspec = None
1266
elif getattr(infile, 'read', MISSING) is not MISSING:
1027
elif hasattr(infile, 'read'):
1267
1028
# This supports file like objects
1268
1029
infile = infile.read() or []
1269
1030
# needs splitting into lines - but needs doing *after* decoding
1270
1031
# in case it's not an 8 bit encoding
1272
raise TypeError('infile must be a filename, file like object, or list of lines.')
1033
raise TypeError, ('infile must be a filename,'
1034
' file like object, or list of lines.')
1275
1037
# don't do it for the empty ConfigObj
1276
1038
infile = self._handle_bom(infile)
1605
1382
'Parse error in value at line %s.',
1606
1383
ParseError, infile, cur_index)
1612
value = unrepr(value)
1613
except Exception, e:
1614
if type(e) == UnknownType:
1615
msg = 'Unknown name or type in value at line %s.'
1617
msg = 'Parse error in value at line %s.'
1618
self._handle_error(msg, UnreprError, infile,
1625
value = unrepr(value)
1626
except Exception, e:
1627
if isinstance(e, UnknownType):
1628
msg = 'Unknown name or type in value at line %s.'
1630
msg = 'Parse error in value at line %s.'
1631
self._handle_error(msg, UnreprError, infile,
1635
# extract comment and lists
1637
(value, comment) = self._handle_value(value)
1640
'Parse error in value at line %s.',
1641
ParseError, infile, cur_index)
1386
# extract comment and lists
1388
(value, comment) = self._handle_value(value)
1391
'Parse error in value at line %s.',
1392
ParseError, infile, cur_index)
1395
## print >> sys.stderr, sline
1644
1396
key = self._unquote(key)
1645
if key in this_section:
1397
if this_section.has_key(key):
1646
1398
self._handle_error(
1647
1399
'Duplicate keyword name at line %s.',
1648
1400
DuplicateError, infile, cur_index)
1651
# we set unrepr because if we have got this far we will never
1652
# be creating a new section
1653
this_section.__setitem__(key, value, unrepr=True)
1403
## print >> sys.stderr, this_section.name
1404
this_section[key] = value
1654
1405
this_section.inline_comments[key] = comment
1655
1406
this_section.comments[key] = comment_list
1407
## print >> sys.stderr, key, this_section[key]
1408
## if this_section.name is not None:
1409
## print >> sys.stderr, this_section
1410
## print >> sys.stderr, this_section.parent
1411
## print >> sys.stderr, this_section.parent[this_section.name]
1414
# it neither matched as a keyword
1415
# or a section marker
1417
'Invalid line at line "%s".',
1418
ParseError, infile, cur_index)
1658
1419
if self.indent_type is None:
1659
1420
# no indentation used, set the type accordingly
1660
1421
self.indent_type = ''
1662
1422
# preserve the final comment
1663
1423
if not self and not self.initial_comment:
1664
1424
self.initial_comment = comment_list
1665
elif not reset_comment:
1666
1426
self.final_comment = comment_list
1667
self.list_values = temp_list_values
1670
1428
def _match_depth(self, sect, depth):
1672
1430
Given a section and a depth level, walk back through the sections
1673
1431
parents to see if the depth level matches a previous section.
1675
1433
Return a reference to the right section,
1676
1434
or raise a SyntaxError.
1678
1436
while depth < sect.depth:
1679
1437
if sect is sect.parent:
1680
1438
# we've reached the top level already
1682
1440
sect = sect.parent
1683
1441
if sect.depth == depth:
1685
1443
# shouldn't get here
1689
1446
def _handle_error(self, text, ErrorClass, infile, cur_index):
1691
1448
Handle an error according to the error settings.
1693
1450
Either raise the error or store it.
1694
1451
The error will have occured at ``cur_index``
1696
1453
line = infile[cur_index]
1698
1454
message = text % cur_index
1699
1455
error = ErrorClass(message, cur_index, line)
1700
1456
if self.raise_errors:
1704
1460
# reraise when parsing has finished
1705
1461
self._errors.append(error)
1708
1463
def _unquote(self, value):
1709
1464
"""Return an unquoted version of a value"""
1710
1465
if (value[0] == value[-1]) and (value[0] in ('"', "'")):
1711
1466
value = value[1:-1]
1715
1469
def _quote(self, value, multiline=True):
1717
1471
Return a safely quoted version of a value.
1719
1473
Raise a ConfigObjError if the value cannot be safely quoted.
1720
1474
If multiline is ``True`` (default) then use triple quotes
1723
* Don't quote values that don't need it.
1724
* Recursively quote members of a list and return a comma joined list.
1725
* Multiline is ``False`` for lists.
1726
* Obey list syntax for empty and single member lists.
1477
Don't quote values that don't need it.
1478
Recursively quote members of a list and return a comma joined list.
1479
Multiline is ``False`` for lists.
1480
Obey list syntax for empty and single member lists.
1728
1482
If ``list_values=False`` then the value is only quoted if it contains
1729
a ``\\n`` (is multiline) or '#'.
1731
If ``write_empty_values`` is set, and the value is an empty string, it
1483
a ``\n`` (is multiline).
1734
if multiline and self.write_empty_values and value == '':
1735
# Only if multiline is set, so that it is used for values not
1736
# keys, and not values that are part of a list
1739
if multiline and isinstance(value, (list, tuple)):
1485
if isinstance(value, (list, tuple)):
1742
1488
elif len(value) == 1:
1743
1489
return self._quote(value[0], multiline=False) + ','
1744
1490
return ', '.join([self._quote(val, multiline=False)
1745
1491
for val in value])
1746
if not isinstance(value, basestring):
1492
if not isinstance(value, StringTypes):
1747
1493
if self.stringify:
1748
1494
value = str(value)
1750
raise TypeError('Value "%s" is not a string.' % value)
1496
raise TypeError, 'Value "%s" is not a string.' % value
1500
wspace_plus = ' \r\t\n\v\t\'"'
1755
no_lists_no_quotes = not self.list_values and '\n' not in value and '#' not in value
1756
need_triple = multiline and ((("'" in value) and ('"' in value)) or ('\n' in value ))
1757
hash_triple_quote = multiline and not need_triple and ("'" in value) and ('"' in value) and ('#' in value)
1758
check_for_single = (no_lists_no_quotes or not need_triple) and not hash_triple_quote
1760
if check_for_single:
1505
if (not self.list_values and '\n' not in value) or not (multiline and
1506
((("'" in value) and ('"' in value)) or ('\n' in value))):
1761
1507
if not self.list_values:
1762
1508
# we don't quote if ``list_values=False``
1764
1510
# for normal values either single or double quotes will do
1765
1511
elif '\n' in value:
1766
1512
# will only happen if multiline is off - e.g. '\n' in key
1767
raise ConfigObjError('Value "%s" cannot be safely quoted.' % value)
1513
raise ConfigObjError, ('Value "%s" cannot be safely quoted.' %
1768
1515
elif ((value[0] not in wspace_plus) and
1769
1516
(value[-1] not in wspace_plus) and
1770
1517
(',' not in value)):
1773
quot = self._get_single_quote(value)
1520
if ("'" in value) and ('"' in value):
1521
raise ConfigObjError, (
1522
'Value "%s" cannot be safely quoted.' % value)
1775
1528
# if value has '\n' or "'" *and* '"', it will need triple quotes
1776
quot = self._get_triple_quote(value)
1778
if quot == noquot and '#' in value and self.list_values:
1779
quot = self._get_single_quote(value)
1529
if (value.find('"""') != -1) and (value.find("'''") != -1):
1530
raise ConfigObjError, (
1531
'Value "%s" cannot be safely quoted.' % value)
1532
if value.find('"""') == -1:
1781
1536
return quot % value
1784
def _get_single_quote(self, value):
1785
if ("'" in value) and ('"' in value):
1786
raise ConfigObjError('Value "%s" cannot be safely quoted.' % value)
1794
def _get_triple_quote(self, value):
1795
if (value.find('"""') != -1) and (value.find("'''") != -1):
1796
raise ConfigObjError('Value "%s" cannot be safely quoted.' % value)
1797
if value.find('"""') == -1:
1804
1538
def _handle_value(self, value):
1806
1540
Given a value string, unquote, remove comment,
1807
1541
handle lists. (including empty and single member lists)
1543
Testing list values.
1545
>>> testconfig3 = '''
1548
... c = test1, test2 , test3
1549
... d = test1, test2, test3,
1551
>>> d = ConfigObj(testconfig3.split('\\n'), raise_errors=True)
1554
>>> d['b'] == ['test']
1556
>>> d['c'] == ['test1', 'test2', 'test3']
1558
>>> d['d'] == ['test1', 'test2', 'test3']
1561
Testing with list values off.
1564
... testconfig3.split('\\n'),
1565
... raise_errors=True,
1566
... list_values=False)
1569
>>> e['b'] == 'test,'
1571
>>> e['c'] == 'test1, test2 , test3'
1573
>>> e['d'] == 'test1, test2, test3,'
1576
Testing creating from a dictionary.
1599
>>> g = ConfigObj(f)
1603
Testing we correctly detect badly built list values (4 of them).
1605
>>> testconfig4 = '''
1609
... dummy = ,,hello, goodbye
1612
... ConfigObj(testconfig4.split('\\n'))
1613
... except ConfigObjError, e:
1617
Testing we correctly detect badly quoted values (4 of them).
1619
>>> testconfig5 = '''
1620
... config = "hello # comment
1622
... fish = 'goodbye # comment
1623
... dummy = "hello again
1626
... ConfigObj(testconfig5.split('\\n'))
1627
... except ConfigObjError, e:
1810
# Parsing a configspec so don't handle comments
1812
1631
# do we look for lists in values ?
1813
1632
if not self.list_values:
1814
1633
mat = self._nolistvalue.match(value)
1815
1634
if mat is None:
1636
(value, comment) = mat.groups()
1817
1637
# NOTE: we don't unquote here
1638
return (value, comment)
1820
1639
mat = self._valueexp.match(value)
1821
1640
if mat is None:
1822
1641
# the value is badly constructed, probably badly quoted,
1823
1642
# or an invalid list
1825
1644
(list_values, single, empty_list, comment) = mat.groups()
1826
1645
if (list_values == '') and (single is None):
1827
1646
# change this if you want to accept empty values
1829
1648
# NOTE: note there is no error handling from here if the regex
1830
1649
# is wrong: then incorrect values will slip through
1831
1650
if empty_list is not None:
1832
1651
# the single comma - meaning an empty list
1833
1652
return ([], comment)
1834
1653
if single is not None:
1835
# handle empty values
1836
if list_values and not single:
1837
# FIXME: the '' is a workaround because our regex now matches
1838
# '' at the end of a list if it has a trailing comma
1841
single = single or '""'
1842
single = self._unquote(single)
1654
single = self._unquote(single)
1843
1655
if list_values == '':
1844
1656
# not a list value
1845
1657
return (single, comment)
1878
1711
# we've got to the end of the config, oops...
1880
1713
mat = multi_line.match(line)
1881
1714
if mat is None:
1882
1715
# a badly formed line
1884
1717
(value, comment) = mat.groups()
1885
1718
return (newvalue + value, comment, cur_index)
1888
1720
def _handle_configspec(self, configspec):
1889
1721
"""Parse the configspec."""
1890
# FIXME: Should we check that the configspec was created with the
1891
# correct settings ? (i.e. ``list_values=False``)
1892
if not isinstance(configspec, ConfigObj):
1894
configspec = ConfigObj(configspec,
1898
except ConfigObjError, e:
1899
# FIXME: Should these errors have a reference
1900
# to the already parsed ConfigObj ?
1901
raise ConfigspecError('Parsing configspec failed: %s' % e)
1903
raise IOError('Reading configspec failed: %s' % e)
1905
self.configspec = configspec
1909
def _set_configspec(self, section, copy):
1911
Called by validate. Handles setting the configspec on subsections
1912
including sections to be validated by __many__
1914
configspec = section.configspec
1915
many = configspec.get('__many__')
1916
if isinstance(many, dict):
1917
for entry in section.sections:
1918
if entry not in configspec:
1919
section[entry].configspec = many
1723
configspec = ConfigObj(
1728
except ConfigObjError, e:
1729
# FIXME: Should these errors have a reference
1730
# to the already parsed ConfigObj ?
1731
raise ConfigspecError('Parsing configspec failed: %s' % e)
1733
raise IOError('Reading configspec failed: %s' % e)
1734
self._set_configspec_value(configspec, self)
1736
def _set_configspec_value(self, configspec, section):
1737
"""Used to recursively set configspec values."""
1738
if '__many__' in configspec.sections:
1739
section.configspec['__many__'] = configspec['__many__']
1740
if len(configspec.sections) > 1:
1741
# FIXME: can we supply any useful information here ?
1742
raise RepeatSectionError
1743
for entry in configspec.scalars:
1744
section.configspec[entry] = configspec[entry]
1921
1745
for entry in configspec.sections:
1922
1746
if entry == '__many__':
1924
if entry not in section:
1928
section.comments[entry] = configspec.comments.get(entry, [])
1929
section.inline_comments[entry] = configspec.inline_comments.get(entry, '')
1931
# Could be a scalar when we expect a section
1932
if isinstance(section[entry], Section):
1933
section[entry].configspec = configspec[entry]
1748
if not section.has_key(entry):
1750
self._set_configspec_value(configspec[entry], section[entry])
1752
def _handle_repeat(self, section, configspec):
1753
"""Dynamically assign configspec for repeated section."""
1755
section_keys = configspec.sections
1756
scalar_keys = configspec.scalars
1757
except AttributeError:
1758
section_keys = [entry for entry in configspec
1759
if isinstance(configspec[entry], dict)]
1760
scalar_keys = [entry for entry in configspec
1761
if not isinstance(configspec[entry], dict)]
1762
if '__many__' in section_keys and len(section_keys) > 1:
1763
# FIXME: can we supply any useful information here ?
1764
raise RepeatSectionError
1767
for entry in scalar_keys:
1768
val = configspec[entry]
1769
scalars[entry] = val
1770
for entry in section_keys:
1771
val = configspec[entry]
1772
if entry == '__many__':
1773
scalars[entry] = val
1775
sections[entry] = val
1777
section.configspec = scalars
1778
for entry in sections:
1779
if not section.has_key(entry):
1781
self._handle_repeat(section[entry], sections[entry])
1936
1783
def _write_line(self, indent_string, entry, this_entry, comment):
1937
1784
"""Write an individual line, for the write method"""
1938
1785
# NOTE: the calls to self._quote here handles non-StringType values.
1940
val = self._decode_element(self._quote(this_entry))
1942
val = repr(this_entry)
1943
return '%s%s%s%s%s' % (indent_string,
1944
self._decode_element(self._quote(entry, multiline=False)),
1945
self._a_to_u(' = '),
1947
self._decode_element(comment))
1786
return '%s%s%s%s%s' % (
1788
self._decode_element(self._quote(entry, multiline=False)),
1789
self._a_to_u(' = '),
1790
self._decode_element(self._quote(this_entry)),
1791
self._decode_element(comment))
1950
1793
def _write_marker(self, indent_string, depth, entry, comment):
1951
1794
"""Write a section marker line"""
1952
return '%s%s%s%s%s' % (indent_string,
1953
self._a_to_u('[' * depth),
1954
self._quote(self._decode_element(entry), multiline=False),
1955
self._a_to_u(']' * depth),
1956
self._decode_element(comment))
1795
return '%s%s%s%s%s' % (
1797
self._a_to_u('[' * depth),
1798
self._quote(self._decode_element(entry), multiline=False),
1799
self._a_to_u(']' * depth),
1800
self._decode_element(comment))
1959
1802
def _handle_comment(self, comment):
1960
"""Deal with a comment."""
1804
Deal with a comment.
1806
>>> filename = a.filename
1807
>>> a.filename = None
1808
>>> values = a.write()
1810
>>> while index < 23:
1812
... line = values[index-1]
1813
... assert line.endswith('# comment ' + str(index))
1814
>>> a.filename = filename
1816
>>> start_comment = ['# Initial Comment', '', '#']
1817
>>> end_comment = ['', '#', '# Final Comment']
1818
>>> newconfig = start_comment + testconfig1.split('\\n') + end_comment
1819
>>> nc = ConfigObj(newconfig)
1820
>>> nc.initial_comment
1821
['# Initial Comment', '', '#']
1822
>>> nc.final_comment
1823
['', '#', '# Final Comment']
1824
>>> nc.initial_comment == start_comment
1826
>>> nc.final_comment == end_comment
1961
1829
if not comment:
1963
start = self.indent_type
1831
if self.indent_type == '\t':
1832
start = self._a_to_u('\t')
1834
start = self._a_to_u(' ' * NUM_INDENT_SPACES)
1964
1835
if not comment.startswith('#'):
1965
start += self._a_to_u(' # ')
1836
start += _a_to_u('# ')
1966
1837
return (start + comment)
1839
def _compute_indent_string(self, depth):
1841
Compute the indent string, according to current indent_type and depth
1843
if self.indent_type == '':
1844
# no indentation at all
1846
if self.indent_type == '\t':
1848
if self.indent_type == ' ':
1849
return ' ' * NUM_INDENT_SPACES * depth
1969
1852
# Public methods
1971
1854
def write(self, outfile=None, section=None):
1973
1856
Write the current ConfigObj as a file
1975
1858
tekNico: FIXME: use StringIO instead of real files
1977
1860
>>> filename = a.filename
1978
1861
>>> a.filename = 'test.ini'
1980
1863
>>> a.filename = filename
1981
1864
>>> a == ConfigObj('test.ini', raise_errors=True)
1866
>>> os.remove('test.ini')
1867
>>> b.filename = 'test.ini'
1869
>>> b == ConfigObj('test.ini', raise_errors=True)
1871
>>> os.remove('test.ini')
1872
>>> i.filename = 'test.ini'
1874
>>> i == ConfigObj('test.ini', raise_errors=True)
1876
>>> os.remove('test.ini')
1878
>>> a['DEFAULT'] = {'a' : 'fish'}
1879
>>> a['a'] = '%(a)s'
1881
['a = %(a)s', '[DEFAULT]', 'a = fish']
1984
1883
if self.indent_type is None:
1985
1884
# this can be true if initialised from a dictionary
1986
1885
self.indent_type = DEFAULT_INDENT_TYPE
1989
1888
cs = self._a_to_u('#')
1990
1889
csp = self._a_to_u('# ')
2053
1953
out[0] = BOM_UTF8 + out[0]
2056
1956
# Turn the list to a string, joined with correct newlines
2057
newline = self.newlines or os.linesep
2058
output = self._a_to_u(newline).join(out)
1957
output = (self._a_to_u(self.newlines or os.linesep)
2059
1959
if self.encoding:
2060
1960
output = output.encode(self.encoding)
2061
if self.BOM and ((self.encoding is None) or match_utf8(self.encoding)):
1961
if (self.BOM and ((self.encoding is None) or
1962
(BOM_LIST.get(self.encoding.lower()) == 'utf_8'))):
2062
1963
# Add the UTF8 BOM
2063
1964
output = BOM_UTF8 + output
2065
if not output.endswith(newline):
2067
1965
if outfile is not None:
2068
1966
outfile.write(output)
2070
h = open(self.filename, 'wb')
1968
h = open(self.filename, 'w')
2071
1969
h.write(output)
2075
def validate(self, validator, preserve_errors=False, copy=False,
1972
def validate(self, validator, preserve_errors=False, section=None):
2078
1974
Test the ConfigObj against a configspec.
2080
1976
It uses the ``validator`` object from *validate.py*.
2082
1978
To run ``validate`` on the current ConfigObj, call: ::
2084
1980
test = config.validate(validator)
2086
1982
(Normally having previously passed in the configspec when the ConfigObj
2087
1983
was created - you can dynamically assign a dictionary of checks to the
2088
1984
``configspec`` attribute of a section though).
2090
1986
It returns ``True`` if everything passes, or a dictionary of
2091
1987
pass/fails (True/False). If every member of a subsection passes, it
2092
1988
will just have the value ``True``. (It also returns ``False`` if all
2095
1991
In addition, it converts the values from strings to their native
2096
1992
types if their checks pass (and ``stringify`` is set).
2098
1994
If ``preserve_errors`` is ``True`` (``False`` is default) then instead
2099
1995
of a marking a fail with a ``False``, it will preserve the actual
2100
1996
exception object. This can contain info about the reason for failure.
2101
For example the ``VdtValueTooSmallError`` indicates that the value
1997
For example the ``VdtValueTooSmallError`` indeicates that the value
2102
1998
supplied was too small. If a value (or section) is missing it will
2103
1999
still be marked as ``False``.
2105
2001
You must have the validate module to use ``preserve_errors=True``.
2107
2003
You can then use the ``flatten_errors`` function to turn your nested
2108
2004
results dictionary into a flattened list of failures - useful for
2109
2005
displaying meaningful error messages.
2008
... from validate import Validator
2009
... except ImportError:
2010
... print >> sys.stderr, 'Cannot import the Validator object, skipping the related tests'
2027
... '''.split('\\n')
2028
... configspec = '''
2029
... test1= integer(30,50)
2032
... test4=float(6.0)
2034
... test1=integer(30,50)
2037
... test4=float(6.0)
2039
... test1=integer(30,50)
2042
... test4=float(6.0)
2043
... '''.split('\\n')
2044
... val = Validator()
2045
... c1 = ConfigObj(config, configspec=configspec)
2046
... test = c1.validate(val)
2057
... 'sub section': {
2066
>>> val.check(c1.configspec['test4'], c1['test4'])
2067
Traceback (most recent call last):
2068
VdtValueTooSmallError: the value "5.0" is too small.
2070
>>> val_test_config = '''
2075
... key2 = 1.1, 3.0, 17, 6.8
2078
... key2 = True'''.split('\\n')
2079
>>> val_test_configspec = '''
2084
... key2 = float_list(4)
2086
... key = option(option1, option2)
2087
... key2 = boolean'''.split('\\n')
2088
>>> val_test = ConfigObj(val_test_config, configspec=val_test_configspec)
2089
>>> val_test.validate(val)
2091
>>> val_test['key'] = 'text not a digit'
2092
>>> val_res = val_test.validate(val)
2093
>>> val_res == {'key2': True, 'section': True, 'key': False}
2095
>>> configspec = '''
2096
... test1=integer(30,50, default=40)
2097
... test2=string(default="hello")
2098
... test3=integer(default=3)
2099
... test4=float(6.0, default=6.0)
2101
... test1=integer(30,50, default=40)
2102
... test2=string(default="hello")
2103
... test3=integer(default=3)
2104
... test4=float(6.0, default=6.0)
2106
... test1=integer(30,50, default=40)
2107
... test2=string(default="hello")
2108
... test3=integer(default=3)
2109
... test4=float(6.0, default=6.0)
2110
... '''.split('\\n')
2111
>>> default_test = ConfigObj(['test1=30'], configspec=configspec)
2113
{'test1': '30', 'section': {'sub section': {}}}
2114
>>> default_test.validate(val)
2116
>>> default_test == {
2118
... 'test2': 'hello',
2123
... 'test2': 'hello',
2126
... 'sub section': {
2129
... 'test2': 'hello',
2136
Now testing with repeated sections : BIG TEST
2138
>>> repeated_1 = '''
2140
... [[__many__]] # spec for a dog
2141
... fleas = boolean(default=True)
2142
... tail = option(long, short, default=long)
2143
... name = string(default=rover)
2144
... [[[__many__]]] # spec for a puppy
2145
... name = string(default="son of rover")
2146
... age = float(default=0.0)
2148
... [[__many__]] # spec for a cat
2149
... fleas = boolean(default=True)
2150
... tail = option(long, short, default=short)
2151
... name = string(default=pussy)
2152
... [[[__many__]]] # spec for a kitten
2153
... name = string(default="son of pussy")
2154
... age = float(default=0.0)
2155
... '''.split('\\n')
2156
>>> repeated_2 = '''
2159
... # blank dogs with puppies
2160
... # should be filled in by the configspec
2175
... # blank cats with kittens
2176
... # should be filled in by the configspec
2189
... '''.split('\\n')
2190
>>> repeated_3 = '''
2201
... '''.split('\\n')
2202
>>> repeated_4 = '''
2205
... name = string(default=Michael)
2206
... age = float(default=0.0)
2207
... sex = option(m, f, default=m)
2208
... '''.split('\\n')
2209
>>> repeated_5 = '''
2212
... fleas = boolean(default=True)
2213
... tail = option(long, short, default=short)
2214
... name = string(default=pussy)
2215
... [[[description]]]
2216
... height = float(default=3.3)
2217
... weight = float(default=6)
2219
... fur = option(black, grey, brown, "tortoise shell", default=black)
2220
... condition = integer(0,10, default=5)
2221
... '''.split('\\n')
2222
>>> from validate import Validator
2223
>>> val= Validator()
2224
>>> repeater = ConfigObj(repeated_2, configspec=repeated_1)
2225
>>> repeater.validate(val)
2232
... 'name': 'rover',
2233
... 'puppy1': {'name': 'son of rover', 'age': 0.0},
2234
... 'puppy2': {'name': 'son of rover', 'age': 0.0},
2235
... 'puppy3': {'name': 'son of rover', 'age': 0.0},
2240
... 'name': 'rover',
2241
... 'puppy1': {'name': 'son of rover', 'age': 0.0},
2242
... 'puppy2': {'name': 'son of rover', 'age': 0.0},
2243
... 'puppy3': {'name': 'son of rover', 'age': 0.0},
2248
... 'name': 'rover',
2249
... 'puppy1': {'name': 'son of rover', 'age': 0.0},
2250
... 'puppy2': {'name': 'son of rover', 'age': 0.0},
2251
... 'puppy3': {'name': 'son of rover', 'age': 0.0},
2257
... 'tail': 'short',
2258
... 'name': 'pussy',
2259
... 'kitten1': {'name': 'son of pussy', 'age': 0.0},
2260
... 'kitten2': {'name': 'son of pussy', 'age': 0.0},
2261
... 'kitten3': {'name': 'son of pussy', 'age': 0.0},
2265
... 'tail': 'short',
2266
... 'name': 'pussy',
2267
... 'kitten1': {'name': 'son of pussy', 'age': 0.0},
2268
... 'kitten2': {'name': 'son of pussy', 'age': 0.0},
2269
... 'kitten3': {'name': 'son of pussy', 'age': 0.0},
2273
... 'tail': 'short',
2274
... 'name': 'pussy',
2275
... 'kitten1': {'name': 'son of pussy', 'age': 0.0},
2276
... 'kitten2': {'name': 'son of pussy', 'age': 0.0},
2277
... 'kitten3': {'name': 'son of pussy', 'age': 0.0},
2282
>>> repeater = ConfigObj(repeated_3, configspec=repeated_1)
2283
>>> repeater.validate(val)
2287
... 'cat1': {'fleas': True, 'tail': 'short', 'name': 'pussy'},
2288
... 'cat2': {'fleas': True, 'tail': 'short', 'name': 'pussy'},
2289
... 'cat3': {'fleas': True, 'tail': 'short', 'name': 'pussy'},
2292
... 'dog1': {'fleas': True, 'tail': 'long', 'name': 'rover'},
2293
... 'dog2': {'fleas': True, 'tail': 'long', 'name': 'rover'},
2294
... 'dog3': {'fleas': True, 'tail': 'long', 'name': 'rover'},
2298
>>> repeater = ConfigObj(configspec=repeated_4)
2299
>>> repeater['Michael'] = {}
2300
>>> repeater.validate(val)
2303
... 'Michael': {'age': 0.0, 'name': 'Michael', 'sex': 'm'},
2306
>>> repeater = ConfigObj(repeated_3, configspec=repeated_5)
2308
... 'dogs': {'dog1': {}, 'dog2': {}, 'dog3': {}},
2309
... 'cats': {'cat1': {}, 'cat2': {}, 'cat3': {}},
2312
>>> repeater.validate(val)
2315
... 'dogs': {'dog1': {}, 'dog2': {}, 'dog3': {}},
2319
... 'tail': 'short',
2320
... 'name': 'pussy',
2321
... 'description': {
2323
... 'height': 3.2999999999999998,
2324
... 'coat': {'fur': 'black', 'condition': 5},
2329
... 'tail': 'short',
2330
... 'name': 'pussy',
2331
... 'description': {
2333
... 'height': 3.2999999999999998,
2334
... 'coat': {'fur': 'black', 'condition': 5},
2339
... 'tail': 'short',
2340
... 'name': 'pussy',
2341
... 'description': {
2343
... 'height': 3.2999999999999998,
2344
... 'coat': {'fur': 'black', 'condition': 5},
2351
Test that interpolation is preserved for validated string values.
2352
Also check that interpolation works in configspecs.
2354
>>> t['DEFAULT'] = {}
2355
>>> t['DEFAULT']['test'] = 'a'
2356
>>> t['test'] = '%(test)s'
2360
>>> t.configspec = {'test': 'string'}
2363
>>> t.interpolation = False
2365
{'test': '%(test)s', 'DEFAULT': {'test': 'a'}}
2367
... 'interpolated string = string(default="fuzzy-%(man)s")',
2371
>>> c = ConfigObj(configspec=specs)
2374
>>> c['interpolated string']
2377
FIXME: Above tests will fail if we couldn't import Validator (the ones
2378
that don't raise errors will produce different output and still fail as
2111
2381
if section is None:
2112
2382
if self.configspec is None:
2113
raise ValueError('No configspec supplied.')
2383
raise ValueError, 'No configspec supplied.'
2114
2384
if preserve_errors:
2115
# We do this once to remove a top level dependency on the validate module
2116
# Which makes importing configobj faster
2117
from validate import VdtMissingValue
2118
self._vdtMissingValue = VdtMissingValue
2385
if VdtMissingValue is None:
2386
raise ImportError('Missing validate module.')
2123
section.initial_comment = section.configspec.initial_comment
2124
section.final_comment = section.configspec.final_comment
2125
section.encoding = section.configspec.encoding
2126
section.BOM = section.configspec.BOM
2127
section.newlines = section.configspec.newlines
2128
section.indent_type = section.configspec.indent_type
2131
configspec = section.configspec
2132
self._set_configspec(section, copy)
2134
def validate_entry(entry, spec, val, missing, ret_true, ret_false):
2389
spec_section = section.configspec
2390
if '__many__' in section.configspec:
2391
many = spec_section['__many__']
2392
# dynamically assign the configspecs
2393
# for the sections below
2394
for entry in section.sections:
2395
self._handle_repeat(section[entry], many)
2400
for entry in spec_section:
2401
if entry == '__many__':
2403
if (not entry in section.scalars) or (entry in section.defaults):
2405
# or entries from defaults
2410
val = section[entry]
2136
check = validator.check(spec,
2412
check = validator.check(spec_section[entry],
2138
2414
missing=missing
2140
2416
except validator.baseErrorClass, e:
2141
if not preserve_errors or isinstance(e, self._vdtMissingValue):
2417
if not preserve_errors or isinstance(e, VdtMissingValue):
2142
2418
out[entry] = False
2144
2420
# preserve the error
2269
2461
elif ret_false:
2275
"""Clear ConfigObj instance and restore to 'freshly created' state."""
2278
# FIXME: Should be done by '_initialise', but ConfigObj constructor (and reload)
2279
# requires an empty dictionary
2280
self.configspec = None
2281
# Just to be sure ;-)
2282
self._original_configspec = None
2287
Reload a ConfigObj from file.
2289
This method raises a ``ReloadError`` if the ConfigObj doesn't have
2290
a filename attribute pointing to a file.
2292
if not isinstance(self.filename, basestring):
2295
filename = self.filename
2296
current_options = {}
2297
for entry in OPTION_DEFAULTS:
2298
if entry == 'configspec':
2300
current_options[entry] = getattr(self, entry)
2302
configspec = self._original_configspec
2303
current_options['configspec'] = configspec
2306
self._initialise(current_options)
2307
self._load(filename, configspec)
2311
2466
class SimpleVal(object):
2313
2468
A simple validator.
2314
2469
Can be used to check that all members expected are present.
2316
2471
To use it, provide a configspec with all your members in (the value given
2317
2472
will be ignored). Pass an instance of ``SimpleVal`` to the ``validate``
2318
2473
method of your ``ConfigObj``. ``validate`` will return ``True`` if all
2319
2474
members are present, or a dictionary with True/False meaning
2320
2475
present/missing. (Whole missing sections will be replaced with ``False``)
2477
>>> val = SimpleVal()
2493
... '''.split('\\n')
2494
>>> configspec = '''
2509
... '''.split('\\n')
2510
>>> o = ConfigObj(config, configspec=configspec)
2513
>>> o = ConfigObj(configspec=configspec)
2323
2518
def __init__(self):
2324
2519
self.baseErrorClass = ConfigObjError
2326
2521
def check(self, check, member, missing=False):
2327
2522
"""A dummy check method, always returns the value unchanged."""
2329
raise self.baseErrorClass()
2524
raise self.baseErrorClass
2333
2527
# Check / processing functions for options
2334
2528
def flatten_errors(cfg, res, levels=None, results=None):
2336
2530
An example function that will turn a nested dictionary of results
2337
2531
(as returned by ``ConfigObj.validate``) into a flat list.
2339
2533
``cfg`` is the ConfigObj instance being checked, ``res`` is the results
2340
2534
dictionary returned by ``validate``.
2342
2536
(This is a recursive function, so you shouldn't use the ``levels`` or
2343
``results`` arguments - they are used by the function.)
2537
``results`` arguments - they are used by the function.
2345
2539
Returns a list of keys that failed. Each member of the list is a tuple :
2349
2542
([list of sections...], key, result)
2351
2544
If ``validate`` was called with ``preserve_errors=False`` (the default)
2352
2545
then ``result`` will always be ``False``.
2354
2547
*list of sections* is a flattened list of sections that the key was found
2357
If the section was missing (or a section was expected and a scalar provided
2358
- or vice-versa) then key will be ``None``.
2550
If the section was missing then key will be ``None``.
2360
2552
If the value (or section) was missing then ``result`` will be ``False``.
2362
2554
If ``validate`` was called with ``preserve_errors=True`` and a value
2363
2555
was present, but failed the check, then ``result`` will be the exception
2364
2556
object returned. You can use this as a string that describes the failure.
2366
2558
For example *The value "3" is of the wrong type*.
2560
# FIXME: is the ordering of the output arbitrary ?
2368
2561
>>> import validate
2369
2562
>>> vtor = validate.Validator()
2370
2563
>>> my_ini = '''
2459
"""*A programming language is a medium of expression.* - Paul Graham"""
2652
# FIXME: test error code for badly built multiline values
2653
# FIXME: test handling of StringIO
2654
# FIXME: test interpolation with writing
2658
Dummy function to hold some of the doctests.
2695
... 'keys11': 'val1',
2696
... 'keys13': 'val3',
2697
... 'keys12': 'val2',
2700
... 'section 2 sub 1': {
2703
... 'keys21': 'val1',
2704
... 'keys22': 'val2',
2705
... 'keys23': 'val3',
2710
... 'a' = b # !"$%^&*(),::;'@~#= 33
2711
... "b" = b #= 6, 33
2712
... ''' .split('\\n')
2713
>>> t2 = ConfigObj(t)
2714
>>> assert t2 == {'a': 'b', 'b': 'b'}
2715
>>> t2.inline_comments['b'] = ''
2717
>>> assert t2.write() == ['','b = b', '']
2719
# Test ``list_values=False`` stuff
2721
... key1 = no quotes
2722
... key2 = 'single quotes'
2723
... key3 = "double quotes"
2724
... key4 = "list", 'with', several, "quotes"
2726
>>> cfg = ConfigObj(c.splitlines(), list_values=False)
2727
>>> cfg == {'key1': 'no quotes', 'key2': "'single quotes'",
2728
... 'key3': '"double quotes"',
2729
... 'key4': '"list", \\'with\\', several, "quotes"'
2732
>>> cfg = ConfigObj(list_values=False)
2733
>>> cfg['key1'] = 'Multiline\\nValue'
2734
>>> cfg['key2'] = '''"Value" with 'quotes' !'''
2736
["key1 = '''Multiline\\nValue'''", 'key2 = "Value" with \\'quotes\\' !']
2737
>>> cfg.list_values = True
2738
>>> cfg.write() == ["key1 = '''Multiline\\nValue'''",
2739
... 'key2 = \\'\\'\\'"Value" with \\'quotes\\' !\\'\\'\\'']
2742
Test flatten_errors:
2744
>>> from validate import Validator, VdtValueTooSmallError
2760
... '''.split('\\n')
2761
>>> configspec = '''
2762
... test1= integer(30,50)
2765
... test4=float(6.0)
2767
... test1=integer(30,50)
2770
... test4=float(6.0)
2772
... test1=integer(30,50)
2775
... test4=float(6.0)
2776
... '''.split('\\n')
2777
>>> val = Validator()
2778
>>> c1 = ConfigObj(config, configspec=configspec)
2779
>>> res = c1.validate(val)
2780
>>> flatten_errors(c1, res) == [([], 'test4', False), (['section',
2781
... 'sub section'], 'test4', False), (['section'], 'test4', False)]
2783
>>> res = c1.validate(val, preserve_errors=True)
2784
>>> check = flatten_errors(c1, res)
2788
(['section', 'sub section'], 'test4')
2790
(['section'], 'test4')
2791
>>> for entry in check:
2792
... isinstance(entry[2], VdtValueTooSmallError)
2793
... print str(entry[2])
2795
the value "5.0" is too small.
2797
the value "5.0" is too small.
2799
the value "5.0" is too small.
2801
Test unicode handling, BOM, write witha file like object and line endings :
2803
... # initial comment
2804
... # inital comment 2
2806
... test1 = some value
2808
... test2 = another value # inline comment
2809
... # section comment
2810
... [section] # inline comment
2811
... test = test # another inline comment
2815
... # final comment2
2817
>>> u = u_base.encode('utf_8').splitlines(True)
2818
>>> u[0] = BOM_UTF8 + u[0]
2819
>>> uc = ConfigObj(u)
2820
>>> uc.encoding = None
2823
>>> uc == {'test1': 'some value', 'test2': 'another value',
2824
... 'section': {'test': 'test', 'test2': 'test2'}}
2826
>>> uc = ConfigObj(u, encoding='utf_8', default_encoding='latin-1')
2829
>>> isinstance(uc['test1'], unicode)
2835
>>> uc['latin1'] = "This costs lot's of "
2836
>>> a_list = uc.write()
2839
>>> isinstance(a_list[0], str)
2841
>>> a_list[0].startswith(BOM_UTF8)
2843
>>> u = u_base.replace('\\n', '\\r\\n').encode('utf_8').splitlines(True)
2844
>>> uc = ConfigObj(u)
2847
>>> uc.newlines = '\\r'
2848
>>> from cStringIO import StringIO
2849
>>> file_like = StringIO()
2850
>>> uc.write(file_like)
2851
>>> file_like.seek(0)
2852
>>> uc2 = ConfigObj(file_like)
2855
>>> uc2.filename == None
2857
>>> uc2.newlines == '\\r'
2861
if __name__ == '__main__':
2862
# run the code tests in doctest format
2865
key1= val # comment 1
2866
key2= val # comment 2
2869
key1= val # comment 5
2870
key2= val # comment 6
2873
key1= val # comment 9
2874
key2= val # comment 10
2876
[[lev2ba]] # comment 12
2877
key1= val # comment 13
2879
[[lev2bb]] # comment 15
2880
key1= val # comment 16
2882
[lev1c] # comment 18
2884
[[lev2c]] # comment 20
2886
[[[lev3c]]] # comment 22
2887
key1 = val # comment 23"""
2893
["section 1"] # comment
2902
[['section 2 sub 1']]
2907
name1 = """ a single line value """ # comment
2908
name2 = \''' another single line value \''' # comment
2909
name3 = """ a single line value """
2910
name4 = \''' another single line value \'''
2927
\''' # I guess this is a comment too
2931
m = sys.modules.get('__main__')
2932
globs = m.__dict__.copy()
2933
a = ConfigObj(testconfig1.split('\n'), raise_errors=True)
2934
b = ConfigObj(testconfig2.split('\n'), raise_errors=True)
2935
i = ConfigObj(testconfig6.split('\n'), raise_errors=True)
2937
'INTP_VER': INTP_VER,
2942
doctest.testmod(m, globs=globs)
2953
Better support for configuration from multiple files, including tracking
2954
*where* the original file came from and writing changes to the correct
2958
Make ``newline`` an option (as well as an attribute) ?
2960
``UTF16`` encoded files, when returned as a list of lines, will have the
2961
BOM at the start of every line. Should this be removed from all but the
2964
Option to set warning type for unicode decode ? (Defaults to strict).
2966
A method to optionally remove uniform indentation from multiline values.
2967
(do as an example of using ``walk`` - along with string-escape)
2969
Should the results dictionary from validate be an ordered dictionary if
2970
`odict <http://www.voidspace.org.uk/python/odict.html>`_ is available ?
2972
Implement a better ``__repr__`` ? (``ConfigObj({})``)
2974
Implement some of the sequence methods (which include slicing) from the
2977
INCOMPATIBLE CHANGES
2978
====================
2980
(I have removed a lot of needless complications - this list is probably not
2981
conclusive, many option/attribute/method names have changed)
2985
The only valid divider is '='
2987
We've removed line continuations with '\'
2989
No recursive lists in values
2993
No distinction between flatfiles and non flatfiles
2995
Change in list syntax - use commas to indicate list, not parentheses
2996
(square brackets and parentheses are no longer recognised as lists)
2998
';' is no longer valid for comments and no multiline comments
3002
We don't allow empty values - have to use '' or ""
3004
In ConfigObj 3 - setting a non-flatfile member to ``None`` would
3005
initialise it as an empty section.
3007
The escape entities '&mjf-lf;' and '&mjf-quot;' have gone
3008
replaced by triple quote, multiple line values.
3010
The ``newline``, ``force_return``, and ``default`` options have gone
3012
The ``encoding`` and ``backup_encoding`` methods have gone - replaced
3013
with the ``encode`` and ``decode`` methods.
3015
``fileerror`` and ``createempty`` options have become ``file_error`` and
3018
Partial configspecs (for specifying the order members should be written
3019
out and which should be present) have gone. The configspec is no longer
3020
used to specify order for the ``write`` method.
3022
Exceeding the maximum depth of recursion in string interpolation now
3023
raises an error ``InterpolationDepthError``.
3025
Specifying a value for interpolation which doesn't exist now raises an
3026
error ``MissingInterpolationOption`` (instead of merely being ignored).
3028
The ``writein`` method has been removed.
3030
The comments attribute is now a list (``inline_comments`` equates to the
3031
old comments attribute)
3036
``validate`` doesn't report *extra* values or sections.
3038
You can't have a keyword with the same name as a section (in the same
3039
section). They are both dictionary keys - so they would overlap.
3041
ConfigObj doesn't quote and unquote values if ``list_values=False``.
3042
This means that leading or trailing whitespace in values will be lost when
3043
writing. (Unless you manually quote).
3045
Interpolation checks first the 'DEFAULT' subsection of the current
3046
section, next it checks the 'DEFAULT' section of the parent section,
3047
last it checks the 'DEFAULT' section of the main section.
3049
Logically a 'DEFAULT' section should apply to all subsections of the *same
3050
parent* - this means that checking the 'DEFAULT' subsection in the
3051
*current section* is not necessarily logical ?
3053
In order to simplify unicode support (which is possibly of limited value
3054
in a config file) I have removed automatic support and added the
3055
``encode`` and ``decode methods, which can be used to transform keys and
3056
entries. Because the regex looks for specific values on inital parsing
3057
(i.e. the quotes and the equals signs) it can only read ascii compatible
3058
encodings. For unicode use ``UTF8``, which is ASCII compatible.
3060
Does it matter that we don't support the ':' divider, which is supported
3061
by ``ConfigParser`` ?
3063
The regular expression correctly removes the value -
3064
``"'hello', 'goodbye'"`` and then unquote just removes the front and
3065
back quotes (called from ``_handle_value``). What should we do ??
3066
(*ought* to raise exception because it's an invalid value if lists are
3067
off *sigh*. This is not what you want if you want to do your own list
3068
processing - would be *better* in this case not to unquote.)
3070
String interpolation and validation don't play well together. When
3071
validation changes type it sets the value. This will correctly fetch the
3072
value using interpolation - but then overwrite the interpolation reference.
3073
If the value is unchanged by validation (it's a string) - but other types
3080
List values allow you to specify multiple values for a keyword. This
3081
maps to a list as the resulting Python object when parsed.
3083
The syntax for lists is easy. A list is a comma separated set of values.
3084
If these values contain quotes, the hash mark, or commas, then the values
3085
can be surrounded by quotes. e.g. : ::
3087
keyword = value1, 'value 2', "value 3"
3089
If a value needs to be a list, but only has one member, then you indicate
3090
this with a trailing comma. e.g. : ::
3092
keyword = "single value",
3094
If a value needs to be a list, but it has no members, then you indicate
3095
this with a single comma. e.g. : ::
3097
keyword = , # an empty list
3099
Using triple quotes it will be possible for single values to contain
3100
newlines and *both* single quotes and double quotes. Triple quotes aren't
3101
allowed in list values. This means that the members of list values can't
3102
contain carriage returns (or line feeds :-) or both quote values.
3110
Removed ``BOM_UTF8`` from ``__all__``.
3112
The ``BOM`` attribute has become a boolean. (Defaults to ``False``.) It is
3113
*only* ``True`` for the ``UTF16`` encoding.
3115
File like objects no longer need a ``seek`` attribute.
3117
ConfigObj no longer keeps a reference to file like objects. Instead the
3118
``write`` method takes a file like object as an optional argument. (Which
3119
will be used in preference of the ``filename`` attribute if htat exists as
3122
Full unicode support added. New options/attributes ``encoding``,
3123
``default_encoding``.
3125
utf16 files decoded to unicode.
3127
If ``BOM`` is ``True``, but no encoding specified, then the utf8 BOM is
3128
written out at the start of the file. (It will normally only be ``True`` if
3129
the utf8 BOM was found when the file was read.)
3131
File paths are *not* converted to absolute paths, relative paths will
3132
remain relative as the ``filename`` attribute.
3134
Fixed bug where ``final_comment`` wasn't returned if ``write`` is returning
3140
Added ``True``, ``False``, and ``enumerate`` if they are not defined.
3141
(``True`` and ``False`` are needed for *early* versions of Python 2.2,
3142
``enumerate`` is needed for all versions ofPython 2.2)
3144
Deprecated ``istrue``, replaced it with ``as_bool``.
3146
Added ``as_int`` and ``as_float``.
3148
utf8 and utf16 BOM handled in an endian agnostic way.
3153
Validation no longer done on the 'DEFAULT' section (only in the root
3154
level). This allows interpolation in configspecs.
3156
Change in validation syntax implemented in validate 0.2.1
3163
Added ``merge``, a recursive update.
3165
Added ``preserve_errors`` to ``validate`` and the ``flatten_errors``
3168
Thanks to Matthew Brett for suggestions and helping me iron out bugs.
3170
Fixed bug where a config file is *all* comment, the comment will now be
3171
``initial_comment`` rather than ``final_comment``.
3176
Fixed bug in ``create_empty``. Thanks to Paul Jimenez for the report.
3181
Fixed bug in ``Section.walk`` when transforming names as well as values.
3183
Added the ``istrue`` method. (Fetches the boolean equivalent of a string
3186
Fixed ``list_values=False`` - they are now only quoted/unquoted if they
3187
are multiline values.
3189
List values are written as ``item, item`` rather than ``item,item``.
3196
Fixed typo in ``write`` method. (Testing for the wrong value when resetting
3204
Fixed bug in ``setdefault`` - creating a new section *wouldn't* return
3205
a reference to the new section.
3210
Removed ``PositionError``.
3212
Allowed quotes around keys as documented.
3214
Fixed bug with commas in comments. (matched as a list value)
3221
Fixed bug in initialising ConfigObj from a ConfigObj.
3223
Changed the mailing list address.
3230
Fixed bug in ``Section.__delitem__`` oops.
3235
Interpolation is switched off before writing out files.
3237
Fixed bug in handling ``StringIO`` instances. (Thanks to report from
3238
"Gustavo Niemeyer" <gustavo@niemeyer.net>)
3240
Moved the doctests from the ``__init__`` method to a separate function.
3241
(For the sake of IDE calltips).
3248
String values unchanged by validation *aren't* reset. This preserves
3249
interpolation in string values.
3254
None from a default is turned to '' if stringify is off - because setting
3255
a value to None raises an error.
3264
Actually added the RepeatSectionError class ;-)
3269
If ``stringify`` is off - list values are preserved by the ``validate``
3277
Fixed ``simpleVal``.
3279
Added ``RepeatSectionError`` error if you have additional sections in a
3280
section with a ``__many__`` (repeated) section.
3284
Reworked the ConfigObj._parse, _handle_error and _multiline methods:
3285
mutated the self._infile, self._index and self._maxline attributes into
3286
local variables and method parameters
3288
Reshaped the ConfigObj._multiline method to better reflect its semantics
3290
Changed the "default_test" test in ConfigObj.validate to check the fix for
3291
the bug in validate.Validator.check
3298
Updated comments at top
3305
Implemented repeated sections.
3309
Added test for interpreter version: raises RuntimeError if earlier than
3317
Implemented default values in configspecs.
3321
Fixed naked except: clause in validate that was silencing the fact
3322
that Python2.2 does not have dict.pop
3329
Bug fix causing error if file didn't exist.
3336
Adjusted doctests for Python 2.2.3 compatibility
3343
Added the inline_comments attribute
3345
We now preserve and rewrite all comments in the config file
3347
configspec is now a section attribute
3349
The validate method changes values in place
3351
Added InterpolationError
3353
The errors now have line number, line, and message attributes. This
3354
simplifies error handling
3363
Fixed bug in Section.pop (now doesn't raise KeyError if a default value
3366
Replaced ``basestring`` with ``types.StringTypes``
3368
Removed the ``writein`` method
3377
Indentation in config file is not significant anymore, subsections are
3378
designated by repeating square brackets
3380
Adapted all tests and docs to the new format
3394
Reformatted final docstring in ReST format, indented it for easier folding
3396
Code tests converted to doctest format, and scattered them around
3397
in various docstrings
3399
Walk method rewritten using scalars and sections attributes
3406
Changed Validator and SimpleVal "test" methods to "check"
3413
Changed Section.sequence to Section.scalars and Section.sections
3415
Added Section.configspec
3417
Sections in the root section now have no extra indentation
3419
Comments now better supported in Section and preserved by ConfigObj
3421
Comments also written out
3423
Implemented initial_comment and final_comment
3425
A scalar value after a section will now raise an error
3430
Fixed a couple of bugs
3432
Can now pass a tuple instead of a list
3434
Simplified dict and walk methods
3436
Added __str__ to Section
3448
The stringify option implemented. On by default.
3453
Renamed private attributes with a single underscore prefix.
3455
Changes to interpolation - exceeding recursion depth, or specifying a
3456
missing value, now raise errors.
3458
Changes for Python 2.2 compatibility. (changed boolean tests - removed
3459
``is True`` and ``is False``)
3461
Added test for duplicate section and member (and fixed bug)
3475
Now properly handles values including comments and lists.
3477
Better error handling.
3479
String interpolation.
3481
Some options implemented.
3483
You can pass a Section a dictionary to initialise it.
3485
Setting a Section member to a dictionary will create a Section instance.
3492
Experimental reader.
3494
A reasonably elegant implementation - a basic reader in 160 lines of code.
3496
*A programming language is a medium of expression.* - Paul Graham
added
removed
bzrlib/util/configobj/configobj.py
