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

annotate Lib/cgitb.py @ 87690:66c1c9f32567 default tip

Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859

author	Radomir Dopieralski <devel@sheep.art.pl>
date	Tue, 03 Dec 2013 16:02:48 +0100
parents	45764e4bb504
children

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.
52650 46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	22
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	23 """
52650 46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	24 import inspect
46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	25 import keyword
46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	26 import linecache
46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	27 import os
46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	28 import pydoc
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	29 import sys
52650 46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	30 import tempfile
46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	31 import time
46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	32 import tokenize
46f1ce76199e Merged revisions 70956 via svnmerge from Brett Cannon <bcannon@gmail.com> parents: 41986 diff changeset	33 import traceback
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	34
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	35 def reset():
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	36 """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	37 return '''<!--: spam
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	38 Content-Type: text/html
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 <body bgcolor="#f0f0f8"><font color="#f0f0f8" size="-5"> -->
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	41 <body bgcolor="#f0f0f8"><font color="#f0f0f8" size="-5"> --> -->
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	42 </font> </font> </font> </script> </object> </blockquote> </pre>
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	43 </table> </table> </table> </table> </table> </font> </font> </font>'''
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	44
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	45 __UNDEF__ = [] # a special sentinel object
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	46 def small(text):
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	47 if text:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	48 return '<small>' + text + '</small>'
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	49 else:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	50 return ''
32736 c3a096bfbd6b Whitespace normalization, via reindent.py. Tim Peters <tim.peters@gmail.com> parents: 32577 diff changeset	51
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	52 def strong(text):
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	53 if text:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	54 return '<strong>' + text + '</strong>'
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	55 else:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	56 return ''
32736 c3a096bfbd6b Whitespace normalization, via reindent.py. Tim Peters <tim.peters@gmail.com> parents: 32577 diff changeset	57
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	58 def grey(text):
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	59 if text:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	60 return '<font color="#909090">' + text + '</font>'
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	61 else:
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	62 return ''
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	63
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	64 def lookup(name, frame, locals):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	65 """Find the value for a given name in the given environment."""
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	66 if name in locals:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	67 return 'local', locals[name]
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	68 if name in frame.f_globals:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	69 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	70 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	71 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	72 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	73 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	74 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	75 else:
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	76 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	77 return 'builtin', getattr(builtins, name)
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	78 return None, __UNDEF__
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	79
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	80 def scanvars(reader, frame, locals):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	81 """Scan one logical line of Python and look up values of variables used."""
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	82 vars, lasttoken, parent, prefix, value = [], None, None, '', __UNDEF__
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	83 for ttype, token, start, end, line in tokenize.generate_tokens(reader):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	84 if ttype == tokenize.NEWLINE: break
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	85 if ttype == tokenize.NAME and token not in keyword.kwlist:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	86 if lasttoken == '.':
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	87 if parent is not __UNDEF__:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	88 value = getattr(parent, token, __UNDEF__)
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	89 vars.append((prefix + token, prefix, value))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	90 else:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	91 where, value = lookup(token, frame, locals)
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	92 vars.append((token, where, value))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	93 elif token == '.':
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	94 prefix += lasttoken + '.'
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	95 parent = value
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	96 else:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	97 parent, prefix = None, ''
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	98 lasttoken = token
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	99 return vars
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	100
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41437 diff changeset	101 def html(einfo, context=5):
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	102 """Return a nice HTML document describing a given traceback."""
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41437 diff changeset	103 etype, evalue, etb = einfo
41986 6464cc638faa Merged revisions 55795-55816 via svnmerge from Guido van Rossum <guido@python.org> parents: 41824 diff changeset	104 if isinstance(etype, type):
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	105 etype = etype.__name__
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	106 pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	107 date = time.ctime(time.time())
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	108 head = '<body bgcolor="#f0f0f8">' + pydoc.html.heading(
32577 fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	109 '<big><big>%s</big></big>' %
fef7911a5705 [Patch #987052 from Thomas Guettler] Andrew M. Kuchling <amk@amk.ca> parents: 32292 diff changeset	110 strong(pydoc.html.escape(str(etype))),
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	111 '#ffffff', '#6622aa', pyver + '<br>' + date) + '''
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	112 <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	113 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	114
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	115 indent = '<tt>' + small(' ' * 5) + ' </tt>'
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	116 frames = []
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	117 records = inspect.getinnerframes(etb, context)
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	118 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	119 if file:
a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	120 file = os.path.abspath(file)
a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	121 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	122 else:
a31a770bb778 Prevent creating a HTML link to file://?/ Georg Brandl <georg@python.org> parents: 34545 diff changeset	123 file = link = '?'
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	124 args, varargs, varkw, locals = inspect.getargvalues(frame)
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	125 call = ''
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	126 if func != '?':
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	127 call = 'in ' + strong(func) + \
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	128 inspect.formatargvalues(args, varargs, varkw, locals,
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	129 formatvalue=lambda value: '=' + pydoc.html.repr(value))
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	130
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	131 highlight = {}
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	132 def reader(lnum=[lnum]):
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	133 highlight[lnum[0]] = 1
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	134 try: return linecache.getline(file, lnum[0])
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	135 finally: lnum[0] += 1
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	136 vars = scanvars(reader, frame, locals)
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	137
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	138 rows = ['<tr><td bgcolor="#d8bbff">%s%s %s</td></tr>' %
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	139 ('<big> </big>', link, call)]
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	140 if index is not None:
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	141 i = lnum - index
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	142 for line in lines:
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	143 num = small(' ' * (5-len(str(i))) + str(i)) + ' '
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	144 if i in highlight:
53072 7e978ca42930 Merged revisions 70980,71059,71225,71234,71241,71243,71249,71251,71255,71266,71299,71329,71397-71398,71486 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 52650 diff changeset	145 line = '<tt>=>%s%s</tt>' % (num, pydoc.html.preformat(line))
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	146 rows.append('<tr><td bgcolor="#ffccee">%s</td></tr>' % line)
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	147 else:
53072 7e978ca42930 Merged revisions 70980,71059,71225,71234,71241,71243,71249,71251,71255,71266,71299,71329,71397-71398,71486 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 52650 diff changeset	148 line = '<tt>  %s%s</tt>' % (num, pydoc.html.preformat(line))
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	149 rows.append('<tr><td>%s</td></tr>' % grey(line))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	150 i += 1
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	151
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	152 done, dump = {}, []
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	153 for name, where, value in vars:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	154 if name in done: continue
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	155 done[name] = 1
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	156 if value is not __UNDEF__:
34545 9d66fba78444 Replace list of constants with tuples of constants. Raymond Hettinger <python@rcn.com> parents: 32736 diff changeset	157 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	158 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	159 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	160 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	161 else:
dab8701bd3fa Also look up variable names in __builtins__ if not found in globals. Ka-Ping Yee <ping@zesty.ca> parents: 21480 diff changeset	162 name = where + strong(name.split('.')[-1])
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	163 dump.append('%s = %s' % (name, pydoc.html.repr(value)))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	164 else:
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	165 dump.append(name + ' <em>undefined</em>')
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	166
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	167 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	168 frames.append('''
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	169 <table width="100%%" cellspacing=0 cellpadding=0 border=0>
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	170 %s</table>''' % '\n'.join(rows))
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	171
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	172 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	173 pydoc.html.escape(str(evalue)))]
41437 3667d1a8c916 Bug #1697782: remove all remaining code that uses types.InstanceType. Georg Brandl <georg@python.org> parents: 35742 diff changeset	174 for name in dir(evalue):
3667d1a8c916 Bug #1697782: remove all remaining code that uses types.InstanceType. Georg Brandl <georg@python.org> parents: 35742 diff changeset	175 if name[:1] == '_': continue
3667d1a8c916 Bug #1697782: remove all remaining code that uses types.InstanceType. Georg Brandl <georg@python.org> parents: 35742 diff changeset	176 value = pydoc.html.repr(getattr(evalue, name))
3667d1a8c916 Bug #1697782: remove all remaining code that uses types.InstanceType. Georg Brandl <georg@python.org> parents: 35742 diff changeset	177 exception.append('\n<br>%s%s =\n%s' % (indent, name, value))
19365 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 return head + ''.join(frames) + ''.join(exception) + '''
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	180
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	181
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	182 <!-- 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	183 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	184 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	185
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	186 %s
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	187 -->
41824 24b60622b944 Merged revisions 55407-55513 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	188 ''' % pydoc.html.escape(
24b60622b944 Merged revisions 55407-55513 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	189 ''.join(traceback.format_exception(etype, evalue, etb)))
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	190
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41437 diff changeset	191 def text(einfo, context=5):
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	192 """Return a plain text document describing a given traceback."""
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 41437 diff changeset	193 etype, evalue, etb = einfo
41986 6464cc638faa Merged revisions 55795-55816 via svnmerge from Guido van Rossum <guido@python.org> parents: 41824 diff changeset	194 if isinstance(etype, type):
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	195 etype = etype.__name__
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	196 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	197 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	198 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	199 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	200 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	201 '''
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	202
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	203 frames = []
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	204 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	205 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	206 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	207 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	208 call = ''
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	209 if func != '?':
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	210 call = 'in ' + func + \
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	211 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	212 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	213
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	214 highlight = {}
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	215 def reader(lnum=[lnum]):
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	216 highlight[lnum[0]] = 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	217 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	218 finally: lnum[0] += 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	219 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	220
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	221 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	222 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	223 i = lnum - index
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	224 for line in lines:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	225 num = '%5d ' % i
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	226 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	227 i += 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	228
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	229 done, dump = {}, []
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	230 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	231 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	232 done[name] = 1
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	233 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	234 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	235 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	236 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	237 else:
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	238 dump.append(name + ' undefined')
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	239
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	240 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	241 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	242
d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	243 exception = ['%s: %s' % (str(etype), str(evalue))]
41437 3667d1a8c916 Bug #1697782: remove all remaining code that uses types.InstanceType. Georg Brandl <georg@python.org> parents: 35742 diff changeset	244 for name in dir(evalue):
3667d1a8c916 Bug #1697782: remove all remaining code that uses types.InstanceType. Georg Brandl <georg@python.org> parents: 35742 diff changeset	245 value = pydoc.text.repr(getattr(evalue, name))
3667d1a8c916 Bug #1697782: remove all remaining code that uses types.InstanceType. Georg Brandl <georg@python.org> parents: 35742 diff changeset	246 exception.append('\n%s%s = %s' % (" "*4, name, value))
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	247
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
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	280 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	281 plain = True
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	282
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	283 if self.display:
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	284 if plain:
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	285 doc = doc.replace('&', '&').replace('<', '<')
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	286 self.file.write('<pre>' + doc + '</pre>\n')
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	287 else:
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	288 self.file.write(doc + '\n')
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	289 else:
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	290 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	291
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	292 if self.logdir is not None:
32001 2cc714977479 [Bug #945063] Get file extension correct. (2.3 bugfix candidate) Andrew M. Kuchling <amk@amk.ca> parents: 31850 diff changeset	293 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	294 (fd, path) = tempfile.mkstemp(suffix=suffix, dir=self.logdir)
79972 abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	295
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	296 try:
24710 11c701038805 Massive changes from SF 589982 (tempfile.py rewrite, by Zack Guido van Rossum <guido@python.org> parents: 23998 diff changeset	297 file = os.fdopen(fd, 'w')
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	298 file.write(doc)
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	299 file.close()
79972 abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	300 msg = '%s contains the description of this error.' % path
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	301 except:
79972 abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	302 msg = 'Tried to save traceback to %s, but failed.' % path
abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	303
abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	304 if self.format == 'html':
abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	305 self.file.write('<p>%s</p>\n' % msg)
abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	306 else:
abbfb89055d3 #12890: don't emit <p> tags in text mode when logdir specified. R David Murray <rdmurray@bitdance.com> parents: 53072 diff changeset	307 self.file.write(msg + '\n')
21194 1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	308 try:
1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	309 self.file.flush()
1519d6faab15 Add "file" argument to Hook constructor. Ka-Ping Yee <ping@zesty.ca> parents: 19421 diff changeset	310 except: pass
19365 a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	311
a1adbf075657 Initial check-in of cgitb. Ka-Ping Yee <ping@zesty.ca> parents: diff changeset	312 handler = Hook().handle
29511 d1acf89d1c49 SF Patch 569574 - enhancements to cgitb for plain text display Skip Montanaro <skip@pobox.com> parents: 26912 diff changeset	313 def enable(display=1, logdir=None, context=5, format="html"):
19421 e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	314 """Install an exception handler that formats tracebacks as HTML.
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	315
e76f7c83eb0d Enhancements: Ka-Ping Yee <ping@zesty.ca> parents: 19365 diff changeset	316 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	317 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	318 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	319 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	320 context=context, format=format)

Mercurial > cpython-lru_cache-weakref

annotate Lib/cgitb.py @ 87690:66c1c9f32567 default tip