36
49
zero_seven = "%s was deprecated in version 0.7."
37
50
zero_eight = "%s was deprecated in version 0.8."
38
51
zero_nine = "%s was deprecated in version 0.9."
52
zero_ten = "%s was deprecated in version 0.10."
53
zero_eleven = "%s was deprecated in version 0.11."
54
zero_twelve = "%s was deprecated in version 0.12."
55
zero_thirteen = "%s was deprecated in version 0.13."
56
zero_fourteen = "%s was deprecated in version 0.14."
57
zero_fifteen = "%s was deprecated in version 0.15."
58
zero_sixteen = "%s was deprecated in version 0.16."
59
zero_seventeen = "%s was deprecated in version 0.17."
60
zero_eighteen = "%s was deprecated in version 0.18."
61
zero_ninety = "%s was deprecated in version 0.90."
62
zero_ninetyone = "%s was deprecated in version 0.91."
63
zero_ninetytwo = "%s was deprecated in version 0.92."
41
66
def set_warning_method(method):
52
77
# add that on top of the primitives, once we have all three written
81
def deprecation_string(a_callable, deprecation_version):
82
"""Generate an automatic deprecation string for a_callable.
84
:param a_callable: The callable to substitute into deprecation_version.
85
:param deprecation_version: A deprecation format warning string. This should
86
have a single %s operator in it. a_callable will be turned into a nice
87
python symbol and then substituted into deprecation_version.
89
# We also want to handle old-style classes, in particular exception, and
90
# they don't have an im_class attribute.
91
if getattr(a_callable, 'im_class', None) is None:
92
symbol = "%s.%s" % (a_callable.__module__,
95
symbol = "%s.%s.%s" % (a_callable.im_class.__module__,
96
a_callable.im_class.__name__,
99
return deprecation_version % symbol
55
102
def deprecated_function(deprecation_version):
56
103
"""Decorate a function so that use of it will trigger a warning."""
61
108
def decorated_function(*args, **kwargs):
62
109
"""This is the decorated function."""
63
symbol = "%s.%s" % (callable.__module__,
66
warn(deprecation_version % symbol, DeprecationWarning, stacklevel=2)
110
warn(deprecation_string(callable, deprecation_version),
111
DeprecationWarning, stacklevel=2)
67
112
return callable(*args, **kwargs)
68
113
_populate_decorated(callable, deprecation_version, "function",
69
114
decorated_function)
83
134
def decorated_method(self, *args, **kwargs):
84
135
"""This is the decorated method."""
85
symbol = "%s.%s.%s" % (self.__class__.__module__,
86
self.__class__.__name__,
136
if callable.__name__ == '__init__':
137
symbol = "%s.%s" % (self.__class__.__module__,
138
self.__class__.__name__,
141
symbol = "%s.%s.%s" % (self.__class__.__module__,
142
self.__class__.__name__,
89
145
warn(deprecation_version % symbol, DeprecationWarning, stacklevel=2)
90
146
return callable(self, *args, **kwargs)
91
147
_populate_decorated(callable, deprecation_version, "method",
145
201
decorated_callable.__module__ = callable.__module__
146
202
decorated_callable.__name__ = callable.__name__
147
203
decorated_callable.is_deprecated = True
206
def _dict_deprecation_wrapper(wrapped_method):
207
"""Returns a closure that emits a warning and calls the superclass"""
208
def cb(dep_dict, *args, **kwargs):
209
msg = 'access to %s' % (dep_dict._variable_name, )
210
msg = dep_dict._deprecation_version % (msg,)
212
msg += ' ' + dep_dict._advice
213
warn(msg, DeprecationWarning, stacklevel=2)
214
return wrapped_method(dep_dict, *args, **kwargs)
218
class DeprecatedDict(dict):
219
"""A dictionary that complains when read or written."""
229
"""Create a dict that warns when read or modified.
231
:param deprecation_version: something like zero_nine
232
:param initial_value: The contents of the dict
233
:param variable_name: This allows better warnings to be printed
234
:param advice: String of advice on what callers should do instead
235
of using this variable.
237
self._deprecation_version = deprecation_version
238
self._variable_name = variable_name
239
self._advice = advice
240
dict.__init__(self, initial_value)
242
# This isn't every possible method but it should trap anyone using the
243
# dict -- add more if desired
244
__len__ = _dict_deprecation_wrapper(dict.__len__)
245
__getitem__ = _dict_deprecation_wrapper(dict.__getitem__)
246
__setitem__ = _dict_deprecation_wrapper(dict.__setitem__)
247
__delitem__ = _dict_deprecation_wrapper(dict.__delitem__)
248
keys = _dict_deprecation_wrapper(dict.keys)
249
__contains__ = _dict_deprecation_wrapper(dict.__contains__)
252
def deprecated_list(deprecation_version, variable_name,
253
initial_value, extra=None):
254
"""Create a list that warns when modified
256
:param deprecation_version: something like zero_nine
257
:param initial_value: The contents of the list
258
:param variable_name: This allows better warnings to be printed
259
:param extra: Extra info to print when printing a warning
262
subst_text = 'Modifying %s' % (variable_name,)
263
msg = deprecation_version % (subst_text,)
267
class _DeprecatedList(list):
268
__doc__ = list.__doc__ + msg
272
def _warn_deprecated(self, func, *args, **kwargs):
273
warn(msg, DeprecationWarning, stacklevel=3)
274
return func(self, *args, **kwargs)
276
def append(self, obj):
277
"""appending to %s is deprecated""" % (variable_name,)
278
return self._warn_deprecated(list.append, obj)
280
def insert(self, index, obj):
281
"""inserting to %s is deprecated""" % (variable_name,)
282
return self._warn_deprecated(list.insert, index, obj)
284
def extend(self, iterable):
285
"""extending %s is deprecated""" % (variable_name,)
286
return self._warn_deprecated(list.extend, iterable)
288
def remove(self, value):
289
"""removing from %s is deprecated""" % (variable_name,)
290
return self._warn_deprecated(list.remove, value)
292
def pop(self, index=None):
293
"""pop'ing from from %s is deprecated""" % (variable_name,)
295
return self._warn_deprecated(list.pop, index)
298
return self._warn_deprecated(list.pop)
300
return _DeprecatedList(initial_value)