cpython-lru_cache-weakref: Lib/cgitb.py annotate

annotate Lib/cgitb.py @ 39940:dfd809dcf680 2.5

Bug #1446043: correctly raise a LookupError if an encoding name given to encodings.search_function() contains a dot. (backport from rev. 52075)

author	Georg Brandl <georg@python.org>
date	Sat, 30 Sep 2006 11:22:35 +0000
parents	1c4d192f1568
children	a01cb3df38dd 3667d1a8c916

rev	line source
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	1 """More comprehensive traceback formatting for Python scripts.
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	2
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	3 To enable this module, do:
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	4
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	5 import cgitb; cgitb.enable()
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	6
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	7 at the top of your script. The optional arguments to enable() are:
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	8
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	9 display - if true, tracebacks are displayed in the web browser
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	10 logdir - if set, tracebacks are written to files in this directory
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	11 context - number of lines of source code to show for each stack frame
29668 36a17904a3ed Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29511 diff changeset	12 format - 'text' or 'html' controls the output format
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	13
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	14 By default, tracebacks are displayed but not saved, the context is 5 lines
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	15 and the output format is 'html' (for backwards compatibility with the
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	16 original use of this module)
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	17
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	18 Alternatively, if you have caught an exception and want cgitb to display it
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	19 for you, call cgitb.handler(). The optional argument to handler() is a
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	20 3-item tuple (etype, evalue, etb) just like the value of sys.exc_info().
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	21 The default handler displays output as HTML.
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	22 """
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	23
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	24 __author__ = 'Ka-Ping Yee'
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 35154 diff changeset	25
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	26 __version__ = '$Revision$'
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	27
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	28 import sys
1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	29
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	30 def reset():
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	31 """Return a string that resets the CGI and browser to a known state."""
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	32 return '''<!--: spam
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	33 Content-Type: text/html
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	34
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	35 <body bgcolor="#f0f0f8"><font color="#f0f0f8" size="-5"> -->
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	36 <body bgcolor="#f0f0f8"><font color="#f0f0f8" size="-5"> --> -->
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	37 </font> </font> </font> </script> </object> </blockquote> </pre>
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	38 </table> </table> </table> </table> </table> </font> </font> </font>'''
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	39
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	40 __UNDEF__ = [] # a special sentinel object
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	41 def small(text):
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	42 if text:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	43 return '<small>' + text + '</small>'
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	44 else:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	45 return ''
32736 c3a096bfbd6b Whitespace normalization, via reindent.py. Tim Peters <tim.peters@gmail.com> parents: 32577 diff changeset	46
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	47 def strong(text):
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	48 if text:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	49 return '<strong>' + text + '</strong>'
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	50 else:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	51 return ''
32736 c3a096bfbd6b Whitespace normalization, via reindent.py. Tim Peters <tim.peters@gmail.com> parents: 32577 diff changeset	52
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	53 def grey(text):
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	54 if text:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	55 return '<font color="#909090">' + text + '</font>'
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	56 else:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	57 return ''
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	58
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	59 def lookup(name, frame, locals):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	60 """Find the value for a given name in the given environment."""
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	61 if name in locals:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	62 return 'local', locals[name]
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	63 if name in frame.f_globals:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	64 return 'global', frame.f_globals[name]
23998 dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	65 if '__builtins__' in frame.f_globals:
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	66 builtins = frame.f_globals['__builtins__']
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	67 if type(builtins) is type({}):
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	68 if name in builtins:
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	69 return 'builtin', builtins[name]
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	70 else:
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	71 if hasattr(builtins, name):
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	72 return 'builtin', getattr(builtins, name)
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	73 return None, __UNDEF__
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	74
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	75 def scanvars(reader, frame, locals):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	76 """Scan one logical line of Python and look up values of variables used."""
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	77 import tokenize, keyword
32263 b9c9e7e8be7d [Bug #758665] cgitb.scanvars() fails because of an unititialized value variable. Patch from Robin Becker. Andrew M. Kuchling <amk@amk.ca> parents: 32001 diff changeset	78 vars, lasttoken, parent, prefix, value = [], None, None, '', __UNDEF__
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	79 for ttype, token, start, end, line in tokenize.generate_tokens(reader):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	80 if ttype == tokenize.NEWLINE: break
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	81 if ttype == tokenize.NAME and token not in keyword.kwlist:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	82 if lasttoken == '.':
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	83 if parent is not __UNDEF__:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	84 value = getattr(parent, token, __UNDEF__)
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	85 vars.append((prefix + token, prefix, value))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	86 else:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	87 where, value = lookup(token, frame, locals)
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	88 vars.append((token, where, value))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	89 elif token == '.':
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	90 prefix += lasttoken + '.'
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	91 parent = value
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	92 else:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	93 parent, prefix = None, ''
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	94 lasttoken = token
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	95 return vars
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	96
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	97 def html((etype, evalue, etb), context=5):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	98 """Return a nice HTML document describing a given traceback."""
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	99 import os, types, time, traceback, linecache, inspect, pydoc
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	100
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	101 if type(etype) is types.ClassType:
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	102 etype = etype.__name__
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	103 pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	104 date = time.ctime(time.time())
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	105 head = '<body bgcolor="#f0f0f8">' + pydoc.html.heading(
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	106 '<big><big>%s</big></big>' %
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	107 strong(pydoc.html.escape(str(etype))),
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	108 '#ffffff', '#6622aa', pyver + '<br>' + date) + '''
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	109 <p>A problem occurred in a Python script. Here is the sequence of
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	110 function calls leading up to the error, in the order they occurred.</p>'''
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	111
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	112 indent = '<tt>' + small(' ' * 5) + ' </tt>'
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	113 frames = []
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	114 records = inspect.getinnerframes(etb, context)
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	115 for frame, file, lnum, func, lines, index in records:
35154 a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	116 if file:
a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	117 file = os.path.abspath(file)
a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	118 link = '<a href="file://%s">%s</a>' % (file, pydoc.html.escape(file))
a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	119 else:
a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	120 file = link = '?'
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	121 args, varargs, varkw, locals = inspect.getargvalues(frame)
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	122 call = ''
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	123 if func != '?':
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	124 call = 'in ' + strong(func) + \
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	125 inspect.formatargvalues(args, varargs, varkw, locals,
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	126 formatvalue=lambda value: '=' + pydoc.html.repr(value))
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	127
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	128 highlight = {}
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	129 def reader(lnum=[lnum]):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	130 highlight[lnum[0]] = 1
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	131 try: return linecache.getline(file, lnum[0])
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	132 finally: lnum[0] += 1
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	133 vars = scanvars(reader, frame, locals)
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	134
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	135 rows = ['<tr><td bgcolor="#d8bbff">%s%s %s</td></tr>' %
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	136 ('<big> </big>', link, call)]
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	137 if index is not None:
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	138 i = lnum - index
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	139 for line in lines:
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	140 num = small(' ' * (5-len(str(i))) + str(i)) + ' '
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	141 line = '<tt>%s%s</tt>' % (num, pydoc.html.preformat(line))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	142 if i in highlight:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	143 rows.append('<tr><td bgcolor="#ffccee">%s</td></tr>' % line)
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	144 else:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	145 rows.append('<tr><td>%s</td></tr>' % grey(line))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	146 i += 1
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	147
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	148 done, dump = {}, []
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	149 for name, where, value in vars:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	150 if name in done: continue
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	151 done[name] = 1
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	152 if value is not __UNDEF__:
34545 9d66fba78444 Replace list of constants with tuples of constants. Raymond Hettinger <python@rcn.com> parents: 32736 diff changeset	153 if where in ('global', 'builtin'):
23998 dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	154 name = ('<em>%s</em> ' % where) + strong(name)
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	155 elif where == 'local':
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	156 name = strong(name)
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	157 else:
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	158 name = where + strong(name.split('.')[-1])
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	159 dump.append('%s = %s' % (name, pydoc.html.repr(value)))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	160 else:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	161 dump.append(name + ' <em>undefined</em>')
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	162
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	163 rows.append('<tr><td>%s</td></tr>' % small(grey(', '.join(dump))))
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	164 frames.append('''
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	165 <table width="100%%" cellspacing=0 cellpadding=0 border=0>
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	166 %s</table>''' % '\n'.join(rows))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	167
31850 696f4ba9ddf7 [Bugfix candidate] Escape traceback type and value. There are probably additional cases where cgitb.py doesn't escape as paranoidly as it should (e.g. attribute names) Andrew M. Kuchling <amk@amk.ca> parents: 29668 diff changeset	168 exception = ['<p>%s: %s' % (strong(pydoc.html.escape(str(etype))),
696f4ba9ddf7 [Bugfix candidate] Escape traceback type and value. There are probably additional cases where cgitb.py doesn't escape as paranoidly as it should (e.g. attribute names) Andrew M. Kuchling <amk@amk.ca> parents: 29668 diff changeset	169 pydoc.html.escape(str(evalue)))]
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	170 if type(evalue) is types.InstanceType:
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	171 for name in dir(evalue):
23998 dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	172 if name[:1] == '_': continue
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	173 value = pydoc.html.repr(getattr(evalue, name))
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	174 exception.append('\n<br>%s%s =\n%s' % (indent, name, value))
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	175
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	176 import traceback
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	177 return head + ''.join(frames) + ''.join(exception) + '''
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	178
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	179
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	180 <!-- The above is a description of an error in a Python program, formatted
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	181 for a Web browser because the 'cgitb' module was enabled. In case you
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	182 are not reading this in a Web browser, here is the original traceback:
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	183
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	184 %s
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	185 -->
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	186 ''' % ''.join(traceback.format_exception(etype, evalue, etb))
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	187
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	188 def text((etype, evalue, etb), context=5):
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	189 """Return a plain text document describing a given traceback."""
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	190 import os, types, time, traceback, linecache, inspect, pydoc
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	191
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	192 if type(etype) is types.ClassType:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	193 etype = etype.__name__
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	194 pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	195 date = time.ctime(time.time())
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	196 head = "%s\n%s\n%s\n" % (str(etype), pyver, date) + '''
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	197 A problem occurred in a Python script. Here is the sequence of
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	198 function calls leading up to the error, in the order they occurred.
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	199 '''
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	200
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	201 frames = []
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	202 records = inspect.getinnerframes(etb, context)
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	203 for frame, file, lnum, func, lines, index in records:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	204 file = file and os.path.abspath(file) or '?'
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	205 args, varargs, varkw, locals = inspect.getargvalues(frame)
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	206 call = ''
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	207 if func != '?':
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	208 call = 'in ' + func + \
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	209 inspect.formatargvalues(args, varargs, varkw, locals,
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	210 formatvalue=lambda value: '=' + pydoc.text.repr(value))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	211
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	212 highlight = {}
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	213 def reader(lnum=[lnum]):
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	214 highlight[lnum[0]] = 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	215 try: return linecache.getline(file, lnum[0])
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	216 finally: lnum[0] += 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	217 vars = scanvars(reader, frame, locals)
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	218
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	219 rows = [' %s %s' % (file, call)]
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	220 if index is not None:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	221 i = lnum - index
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	222 for line in lines:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	223 num = '%5d ' % i
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	224 rows.append(num+line.rstrip())
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	225 i += 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	226
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	227 done, dump = {}, []
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	228 for name, where, value in vars:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	229 if name in done: continue
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	230 done[name] = 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	231 if value is not __UNDEF__:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	232 if where == 'global': name = 'global ' + name
32292 e1345ce275f7 Another nit found by Neal Norwitz using pychecker. This was caused by a Skip Montanaro <skip@pobox.com> parents: 32263 diff changeset	233 elif where != 'local': name = where + name.split('.')[-1]
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	234 dump.append('%s = %s' % (name, pydoc.text.repr(value)))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	235 else:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	236 dump.append(name + ' undefined')
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	237
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	238 rows.append('\n'.join(dump))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	239 frames.append('\n%s\n' % '\n'.join(rows))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	240
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	241 exception = ['%s: %s' % (str(etype), str(evalue))]
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	242 if type(evalue) is types.InstanceType:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	243 for name in dir(evalue):
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	244 value = pydoc.text.repr(getattr(evalue, name))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	245 exception.append('\n%s%s = %s' % (" "*4, name, value))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	246
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	247 import traceback
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	248 return head + ''.join(frames) + ''.join(exception) + '''
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	249
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	250 The above is a description of an error in a Python program. Here is
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	251 the original traceback:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	252
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	253 %s
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	254 ''' % ''.join(traceback.format_exception(etype, evalue, etb))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	255
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	256 class Hook:
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	257 """A hook to replace sys.excepthook that shows tracebacks in HTML."""
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	258
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	259 def __init__(self, display=1, logdir=None, context=5, file=None,
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	260 format="html"):
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	261 self.display = display # send tracebacks to browser if true
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	262 self.logdir = logdir # log tracebacks to files if not None
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	263 self.context = context # number of source code lines per frame
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	264 self.file = file or sys.stdout # place to send the output
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	265 self.format = format
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	266
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	267 def __call__(self, etype, evalue, etb):
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	268 self.handle((etype, evalue, etb))
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	269
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	270 def handle(self, info=None):
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	271 info = info or sys.exc_info()
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	272 if self.format == "html":
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	273 self.file.write(reset())
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	274
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	275 formatter = (self.format=="html") and html or text
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	276 plain = False
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	277 try:
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	278 doc = formatter(info, self.context)
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	279 except: # just in case something goes wrong
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	280 import traceback
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	281 doc = ''.join(traceback.format_exception(*info))
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	282 plain = True
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	283
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	284 if self.display:
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	285 if plain:
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	286 doc = doc.replace('&', '&').replace('<', '<')
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	287 self.file.write('<pre>' + doc + '</pre>\n')
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	288 else:
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	289 self.file.write(doc + '\n')
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	290 else:
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	291 self.file.write('<p>A problem occurred in a Python script.\n')
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	292
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	293 if self.logdir is not None:
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	294 import os, tempfile
32001 2cc714977479 [Bug #945063] Get file extension correct. (2.3 bugfix candidate) Andrew M. Kuchling <amk@amk.ca> parents: 31850 diff changeset	295 suffix = ['.txt', '.html'][self.format=="html"]
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	296 (fd, path) = tempfile.mkstemp(suffix=suffix, dir=self.logdir)
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	297 try:
24710 11c701038805 Massive changes from SF 589982 (tempfile.py rewrite, by Zack Guido van Rossum <guido@python.org> parents: 23998 diff changeset	298 file = os.fdopen(fd, 'w')
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	299 file.write(doc)
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	300 file.close()
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	301 msg = '<p> %s contains the description of this error.' % path
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	302 except:
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	303 msg = '<p> Tried to save traceback to %s, but failed.' % path
1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	304 self.file.write(msg + '\n')
1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	305 try:
1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	306 self.file.flush()
1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	307 except: pass
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	308
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	309 handler = Hook().handle
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	310 def enable(display=1, logdir=None, context=5, format="html"):
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	311 """Install an exception handler that formats tracebacks as HTML.
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	312
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	313 The optional argument 'display' can be set to 0 to suppress sending the
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	314 traceback to the browser, and 'logdir' can be set to a directory to cause
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	315 tracebacks to be written to files there."""
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	316 sys.excepthook = Hook(display=display, logdir=logdir,
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	317 context=context, format=format)

Mercurial > cpython-lru_cache-weakref

annotate Lib/cgitb.py @ 39940:dfd809dcf680 2.5