[Python-bugs-list] [ python-Bugs-666219 ] AssertionErrors in httplib

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Bugs item #666219, was opened at 2003-01-11 08:23
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https://sourceforge.net/tracker/?func=detail&atid=105470&aid=666219&group_id=5470

Category: Python Library
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Skip Montanaro (montanaro)
Assigned to: Jeremy Hylton (jhylton)
Summary: AssertionErrors in httplib

Initial Comment:
I've recently noticed AssertionErrors being raised by
httplib.LineAndFileWrapper.read().  It happens reliably when the server
exits unexpectedly.  Here's an example of an AssertionError in an 
xmlrpclib client when I kill the server it's talking to:

    Traceback (most recent call last):
      File "qa.py", line 22, in ?
        x = s.query(tmpl, st, en, radius, age)
      File "/Users/skip/local/lib/python2.3/xmlrpclib.py", line 985, in __call__
        return self.__send(self.__name, args)
      File "/Users/skip/local/lib/python2.3/xmlrpclib.py", line 1269, in __request
        verbose=self.__verbose
      File "/Users/skip/local/lib/python2.3/xmlrpclib.py", line 1036, in request
        return self._parse_response(h.getfile(), sock)
      File "/Users/skip/local/lib/python2.3/xmlrpclib.py", line 1165, in _parse_response
        response = file.read(1024)
      File "/Users/skip/local/lib/python2.3/httplib.py", line 1150, in read
        assert not self._line_consumed and self._line_left
    AssertionError

I don't see a problem with raising an exception in this situation.  I just
wonder if AssertionError is the best exception to raise (unless of course, the cause is a logic error in the httplib code).  If an exception
is being raised because the server went away, I think it would be 
better to raise IncompleteRead.

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