Files
deb-python-eventlet/eventlet/exc.py

98 lines
3.3 KiB
Python

# Copyright (c) 2005-2009, Donovan Preston
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
"""
Takes an exception object and returns a dictionary suitable for use debugging the exception later.
"""
import linecache
import re
import sys
import traceback
def format_exc(exc=None):
if exc is None:
exc_type, exc_value, exc_tb = sys.exc_info()
else:
exc_type, exc_value, exc_tb = exc
frames = []
while exc_tb is not None:
f = exc_tb.tb_frame
frames.append((
f.f_code.co_name,
f.f_code.co_filename,
exc_tb.tb_lineno,
[(key, value) for (key, value)
in f.f_locals.items() if key != '__builtins__'],
[(key, value) for (key, value)
in f.f_globals.items() if key != '__builtins__']))
exc_tb = exc_tb.tb_next
stack_trace = []
result = {
'error': True,
'stack-trace': stack_trace,
'description': str(exc_type) + ": " + str(exc_value),
'text-exception': ''.join(
traceback.format_exception(
exc_type, exc_value, exc_tb))
}
for method, filename, lineno, local_vars, global_vars in frames:
code = []
vars_dict = {}
stack_trace.append(
{'filename': filename,
'lineno': lineno,
'method': method,
'code': code,
#'vars': vars_dict})
})
code_text = ''
for line_number in range(lineno-2, lineno+2):
line = linecache.getline(filename, line_number)
code.append({'lineno': line_number, 'line': line})
code_text += line
# "self"
for name, var in local_vars:
if name == 'self' and hasattr(var, '__dict__'):
vars_dict['self'] = dict([
(key, value) for (key, value) in var.__dict__.items()
if re.search(
r'\Wself.%s\W' % (re.escape(key),), code_text)])
break
# Local and global vars
vars_dict['locals'] = dict(
[(name, var) for (name, var) in local_vars
if re.search(r'\W%s\W' % (re.escape(name),), code_text)])
vars_dict['globals'] = dict(
[(name, var) for (name, var) in global_vars
if re.search(r'\W%s\W' % (re.escape(name),), code_text)])
return result