fc0f938eae
* cleaned up error module: - only one template - save error message in xml and reload * better display of problem definition and metadata to staff * save error messages as string, not exception objects.
45 lines
1.2 KiB
Python
45 lines
1.2 KiB
Python
import logging
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import sys
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import traceback
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from collections import namedtuple
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log = logging.getLogger(__name__)
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ErrorLog = namedtuple('ErrorLog', 'tracker errors')
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def exc_info_to_str(exc_info):
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"""Given some exception info, convert it into a string using
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the traceback.format_exception() function.
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"""
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return ''.join(traceback.format_exception(*exc_info))
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def in_exception_handler():
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'''Is there an active exception?'''
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return sys.exc_info() != (None, None, None)
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def make_error_tracker():
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'''Return an ErrorLog (named tuple), with fields (tracker, errors), where
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the logger appends a tuple (message, exception_str) to the errors on every
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call. exception_str is in the format returned by traceback.format_exception.
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error_list is a simple list. If the caller modifies it, info
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will be lost.
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'''
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errors = []
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def error_tracker(msg):
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'''Log errors'''
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exc_str = ''
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if in_exception_handler():
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exc_str = exc_info_to_str(sys.exc_info())
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errors.append((msg, exc_str))
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return ErrorLog(error_tracker, errors)
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def null_error_tracker(msg):
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'''A dummy error tracker that just ignores the messages'''
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pass
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