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45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
"""
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Functions to display an error (error, warning or information) message.
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"""
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from hachoir_core.log import log
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from hachoir_core.tools import makePrintable
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import sys, traceback
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def getBacktrace(empty="Empty backtrace."):
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"""
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Try to get backtrace as string.
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Returns "Error while trying to get backtrace" on failure.
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"""
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try:
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info = sys.exc_info()
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trace = traceback.format_exception(*info)
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sys.exc_clear()
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if trace[0] != "None\n":
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return "".join(trace)
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except:
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# No i18n here (imagine if i18n function calls error...)
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return "Error while trying to get backtrace"
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return empty
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class HachoirError(Exception):
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"""
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Parent of all errors in Hachoir library
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"""
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def __init__(self, message):
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message_bytes = makePrintable(message, "ASCII")
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Exception.__init__(self, message_bytes)
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self.text = message
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def __unicode__(self):
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return self.text
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# Error classes which may be raised by Hachoir core
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# FIXME: Add EnvironmentError (IOError or OSError) and AssertionError?
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# FIXME: Remove ArithmeticError and RuntimeError?
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HACHOIR_ERRORS = (HachoirError, LookupError, NameError, AttributeError,
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TypeError, ValueError, ArithmeticError, RuntimeError)
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info = log.info
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warning = log.warning
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error = log.error
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