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From: Cezary Statkiewicz <cezio@thelirium.net>
To: submit@bugs.x2go.org
Subject: python-x2go breaks with gevent 1.1.0
Date: Fri, 01 Apr 2016 19:27:59 +0200
Message-ID: <2350558.GDfSlUhcah@gburek>
Organization: TheLirium.net
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Package: python-x2go
Version: 0.5.0.4

 Hi,

 I'm using x2go python bindings, and noticed that X2GoSession's .suspend() can 
break with gevent 1.1. I've downgraded gevent to 1.0.2 and unchanged code 
works fine with it.

 Sample code (i believe taken from a sample code):


 class Client(X2GoClient):
    def do_connect(self):
        ...
        sid = self.register_session(server=session_args.pop('server', None),
                                    username=session_args.pop('username', 
None),
                                    profile_name=session_args.pop('profile_name', 
None),
                                    port=session_args.pop('port', None),
                                    return_object=True)
        sid.update_params(session_args)
        sid.connect()
        self.clean_sessions(sid.uuid)
        sid.start(cmd='XFCE')

        session_name = sid.get_session_name()
        if session_name is None:
            log.error("X2Go session creation: Session name is None, 
terminating")
            return
        sid.suspend()
        ...


 Traceback:


  File "/usr/lib/python2.7/dist-packages/x2go/session.py", line 2303, in 
suspend
    self._lock.release()
  File "gevent/_semaphore.py", line 266, in 
gevent._semaphore.BoundedSemaphore.release (gevent/gevent._semaphore.c:4866)
  File "gevent/_semaphore.py", line 268, in 
gevent._semaphore.BoundedSemaphore.release (gevent/gevent._semaphore.c:4802)
thread.error: Semaphore released too many times



 Best Regards,

 Cezary Statkiewicz
 

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