[Bug 1353896] [NEW] Bug with Python3 in wait_for_occupied_port/check_port not patched

[Vincent Tabard]

Public bug reported:

See https://bitbucket.org/cherrypy/cherrypy/issue/1170/bug-in-
check_port-running-python-33 for upstream bug description and patch,
commited in source in 2012 in this commit:
https://bitbucket.org/cherrypy/cherrypy/commits/9820107d4ffb8058fd507888f90e28c695f6b4c0.

Summary:

« The new exception hierarchy in Python 3.3 has created a bug in
check_port in process/servers.py. IOError and socket.error are both now
aliases of OSError, so a check for socket.error wrongly catches the
IOError that's thrown in the try block. »

It pretty much makes cherrypy unusable with Python 3.3+ (3.4 shipped
with trusty), since when you start a server, about 50 s later it shuts
down because of « port not bound », when it really is.

** Affects: cherrypy3 (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  Bug with Python3 in wait_for_occupied_port/check_port not patched

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