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  • Committer: Aaron Bentley
  • Date: 2005-09-01 14:11:13 UTC
  • Revision ID: abentley@panoramicfeedback.com-20050901141113-bc37c80383a77aaf
Tweaked missing-dot handling

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dotgraph.py
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from urllib import urlencode
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from xml.sax.saxutils import escape
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import os.path
 
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import errno
 
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class NoDot(Exception):
 
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    def __init__(self):
 
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        Exception.__init__(self, "Can't find dot!")
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class Node(object):
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    def __init__(self, name, color=None, label=None, rev_id=None):
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    try:
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        dot_proc = Popen(cmdline, stdin=PIPE)
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    except OSError, e:
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        if e.errno == 2:
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            print "You need 'dot' to create ancestry graphs"
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        return
 
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        if e.errno == errno.ENOENT:
 
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            raise NoDot()
 
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        else:
 
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            raise
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    for line in input:
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        dot_proc.stdin.write(line)
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    dot_proc.stdin.close()