Xlib.error.XError on second click wait run

[kevinrivers]

Hello,

I am having an issue where waiting for a mouse click a second time results in an error within Xlib.

Versions

OS: Ubuntu 14.04LTS xlib version: 15rc1 (i have tried numerous versions) pyuserinput version: 1.0

Implementation

class ClickToggle(PyMouseEvent):
    def __init__(self):
        PyMouseEvent.__init__(self)

    def click(self, x, y, button, press):
        if press:
            self.stop()

Elsewhere in the program I need to wait for a mouse event so I do the following:

C = ClickToggle()
c.run()

This works fine the first time, however, the second time this happens it results in an Xlib.error. Traceback below.

Traceback (most recent call last):
  File "window_control.py", line 168, in <module>
    controller = KioskWindowControl()
  File "window_control.py", line 56, in __init__
    self.__idle_loop()
  File "window_control.py", line 154, in __idle_loop
    self.__primary_ad_loop()
  File "window_control.py", line 131, in __primary_ad_loop
    self.toggle.run()
  File "/home/jevo/jevo_window_control/venv/local/lib/python2.7/site-packages/pymouse/x11.py", line 130, in run
    self.display2.record_enable_context(self.ctx, self.handler)
  File "/home/jevo/jevo_window_control/venv/local/lib/python2.7/site-packages/Xlib/ext/record.py", line 240, in enable_context
    context = context)
  File "/home/jevo/jevo_window_control/venv/local/lib/python2.7/site-packages/Xlib/ext/record.py", line 217, in __init__
    apply(rq.ReplyRequest.__init__, (self, ) + args, keys)
  File "/home/jevo/jevo_window_control/venv/local/lib/python2.7/site-packages/Xlib/protocol/rq.py", line 1430, in __init__
    self.reply()
  File "/home/jevo/jevo_window_control/venv/local/lib/python2.7/site-packages/Xlib/protocol/rq.py", line 1450, in reply
    raise self._error
Xlib.error.XError: <class 'Xlib.error.XError'>: code = 153, resource_id = 73400320, sequence_number = 10, major_opcode = 146, minor_opcode = 5

Note: I am interacting with Xlib.display in my program.

Let me know if I can provide any additional information.

Kevin

[kevinrivers]

I have traced it down to this line in def run():

https://github.com/SavinaRoja/PyUserInput/blob/master/pymouse/x11.py#L134

self.display2.record_free_context(self.ctx)

Commenting this out gives the expected behavior, not sure why yet.

[pepijndevos]

Do you call run twice on the same instance? That would indeed lead to a double free. Normally you'd call start to run in the background, which you can only do once.

[kevinrivers]

Different instances.

Each time I need to wait for a click a new instance of the class is created.