Name Lock is not defined problem

[JIEREN JIA]

I just paste from the animation example and meet this problem. I reinstalled kivy for several time but still didn't work

Could anyone help me? Thanks a lot!

Kivy v1.10.0

NameErrorTraceback (most recent call last)
<ipython-input-16-d45ffdfb90e6> in <module>()
      3 kivy.require('1.0.7')
      4 
----> 5 from kivy.animation import Animation
      6 from kivy.app import App
      7 from kivy.uix.button import Button

C:\Users\user\Anaconda2\lib\site-packages\kivy\animation.py in <module>()
     85 
     86 from math import sqrt, cos, sin, pi
---> 87 from kivy.event import EventDispatcher
     88 from kivy.clock import Clock
     89 from kivy.compat import string_types, iterkeys

C:\Users\user\Anaconda2\lib\site-packages\kivy\event.py in <module>()
      6 __all__ = ('EventDispatcher', 'ObjectWithUid', 'Observable')
      7 
----> 8 import kivy._event
      9 __doc__ = kivy._event.__doc__
     10 EventDispatcher = kivy._event.EventDispatcher

C:\Users\user\Anaconda2\lib\site-packages\kivy\properties.pxd in init kivy._event (kivy\_event.c:15864)()
      1 from kivy._event cimport EventDispatcher, EventObservers
      2 
----> 3 cdef class PropertyStorage:
      4     cdef object value
      5     cdef EventObservers observers

kivy\properties.pyx in init kivy.properties (kivy\properties.c:35115)()

C:\Users\user\Anaconda2\lib\site-packages\kivy\clock.py in <module>()
    817                 _clk, sorted(_classes.keys())))
    818 
--> 819     Clock = register_context('Clock', _classes[_clk])
    820     '''The kivy Clock instance. See module documentation for details.
    821     '''

C:\Users\user\Anaconda2\lib\site-packages\kivy\context.pyc in register_context(name, cls, *args, **kwargs)
     81     '''Register a new context.
     82     '''
---> 83     instance = cls(*args, **kwargs)
     84     proxy = ProxyContext(instance)
     85     _contexts[name] = {

C:\Users\user\Anaconda2\lib\site-packages\kivy\clock.py in __init__(self, **kwargs)
    711 
    712     def __init__(self, **kwargs):
--> 713         super(ClockBase, self).__init__(**kwargs)
    714         self._sleep_obj = _get_sleep_obj()
    715 

C:\Users\user\Anaconda2\lib\site-packages\kivy\clock.py in __init__(self, **kwargs)
    486 
    487     def __init__(self, **kwargs):
--> 488         super(ClockBaseBehavior, self).__init__(**kwargs)
    489         self._duration_ts0 = self._start_tick = self._last_tick = self.time()
    490         self._max_fps = float(Config.getint('graphics', 'maxfps'))

kivy\_clock.pyx in kivy._clock.CyClockBase.__init__ (kivy\_clock.c:5101)()

NameError: name 'Lock' is not defined

[Matthew Einhorn]

I think we need a full kivy log and OS info. Also, does your python have fail when you run `from threading import Lock`? If so it's an issue with your python/environment.

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