Bugs item #1358186, was opened at 2005-11-16 16:28 Message generated for change (Comment added) made by holle You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1358186&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: Python 2.5 Status: Open Resolution: None Priority: 5 Submitted By: Holger Lehmann (holle) Assigned to: Nobody/Anonymous (nobody) Summary: Incorrect handling of unicode "strings" in asynchat.py Initial Comment: While debugging my Zope installation using the DeadLockDebugger along with the threadframe module under Python 2.3 and 2.4 I stumbled upon a weird behaviour of the method refill_buffer ind the class async_chat in the file asynchat.py (Around line 198). There is a special handling for strings: [...] elif isinstance(p, str): self.producer_fifo.pop() self.ac_out_buffer = self.ac_out_buffer + p return data = p.more() [...] Now, if p is an instance of string, it gets a special handling and the function returns. But if p is an instance of unicode, it does not get the special handling, but dies in the line data = p.more() with the error, that unicode does not have a function named more. I was able to program a workaround by testing for str or unicode. Please see the attached diff-file for details. The code now works as expected. I guess a better way would be to import types and change the if into a "type(p) in types.StringTypes", but I did not dare to do this. I have not checked the code to see if there are more conditionals broken the same way. ---------------------------------------------------------------------- >Comment By: Holger Lehmann (holle) Date: 2005-11-16 16:41 Message: Logged In: YES user_id=332779 And here is the exception (sorry for the weird format of the traceback, I did not do it ;-) ): ZServer uncaptured python exception, closing channel <ZServer.HTTPServer.zhttp_channel connected 192.168.2.60:58493 at 0x45f1de6c channel#: 14145 requests:> (exceptions.AttributeError:'unicode' object has no attribute 'more' [/usr/lib/python2.3/asyncore.py|read|69] [/usr/lib/python2.3/asyncore.py|handle_read_event|390] [/usr/lib/python2.3/asynchat.py|handle_read|136] [/srv/zope_infotip_rts_skel/lib/python/ZServer/medusa/http_server.py| found_terminator|510] [/srv/zope_infotip_rts_render2/Products/DeadlockDebugger/dumper.py| match|88] [/srv/zope_infotip_rts_skel/lib/python/ZServer/HTTPServer.py| push|305] [/usr/lib/python2.3/asynchat.py|initiate_send|213] [/usr/lib/python2.3/asynchat.py|refill_buffer|200]) ---------------------------------------------------------------------- Comment By: Holger Lehmann (holle) Date: 2005-11-16 16:38 Message: Logged In: YES user_id=332779 I checked the current svn repository to see if the "bug" still remains, yes it does: http://svn.python.org/view/python/trunk/Lib/asynchat.py?rev=38980&view=markup ---------------------------------------------------------------------- Comment By: Holger Lehmann (holle) Date: 2005-11-16 16:34 Message: Logged In: YES user_id=332779 Just for the record: I am using Linux 2.6.11 and Python 2.4 (SuSE 9.3) as well as Linux 2.6.5 and Python 2.3.3 (SLES 9 Beta 4). Both Python installations contain a sitecustomize.py with the following content: import sys sys.setdefaultencoding('iso-8859-1') The environment contains a variable LC_CTYPE set to: de_DE.UTF-8 The Zope is a 2.7.3 compiled on both of the above machines by myself. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1358186&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
