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Add "file" argument to Hook constructor.

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By default, save sys.stdout in self.file when a Hook instance is created
    (e.g. when cgitb.enable() is called).
This commit is contained in:
Ka-Ping Yee 2001-12-04 18:45:17 +00:00
parent 4b402f2074
commit fa78d0fbe4
1 changed files with 15 additions and 10 deletions
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25
Lib/cgitb.py
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@ -19,6 +19,8 @@ tuple (etype, evalue, etb) just like the value of sys.exc_info()."""
__author__ = 'Ka-Ping Yee'
__version__ = '$Revision$'
import sys
def reset():
"""Return a string that resets the CGI and browser to a known state."""
return '''<!--: spam
@ -66,7 +68,7 @@ def scanvars(reader, frame, locals):
def html((etype, evalue, etb), context=5):
"""Return a nice HTML document describing a given traceback."""
import sys, os, types, time, traceback, linecache, inspect, pydoc
import os, types, time, traceback, linecache, inspect, pydoc
if type(etype) is types.ClassType:
etype = etype.__name__
@ -149,18 +151,18 @@ function calls leading up to the error, in the order they occurred.'''
class Hook:
"""A hook to replace sys.excepthook that shows tracebacks in HTML."""
def __init__(self, display=1, logdir=None, context=5):
def __init__(self, display=1, logdir=None, context=5, file=None):
self.display = display # send tracebacks to browser if true
self.logdir = logdir # log tracebacks to files if not None
self.context = context # number of source code lines per frame
self.file = file or sys.stdout # place to send the output
def __call__(self, etype, evalue, etb):
self.handle((etype, evalue, etb))
def handle(self, info=None):
import sys
info = info or sys.exc_info()
print reset()
self.file.write(reset())
try:
text, doc = 0, html(info, self.context)
@ -171,11 +173,11 @@ class Hook:
if self.display:
if text:
doc = doc.replace('&', '&amp;').replace('<', '&lt;')
print '<pre>' + doc + '</pre>'
self.file.write('<pre>' + doc + '</pre>\n')
else:
print doc
self.file.write(doc + '\n')
else:
print '<p>A problem occurred in a Python script.'
self.file.write('<p>A problem occurred in a Python script.\n')
if self.logdir is not None:
import os, tempfile
@ -185,9 +187,13 @@ class Hook:
file = open(path, 'w')
file.write(doc)
file.close()
print '<p> %s contains the description of this error.' % path
msg = '<p> %s contains the description of this error.' % path
except:
print '<p> Tried to save traceback to %s, but failed.' % path
msg = '<p> Tried to save traceback to %s, but failed.' % path
self.file.write(msg + '\n')
try:
self.file.flush()
except: pass
handler = Hook().handle
def enable(display=1, logdir=None, context=5):
@ -196,5 +202,4 @@ def enable(display=1, logdir=None, context=5):
The optional argument 'display' can be set to 0 to suppress sending the
traceback to the browser, and 'logdir' can be set to a directory to cause
tracebacks to be written to files there."""
import sys
sys.excepthook = Hook(display, logdir, context)