##// END OF EJS Templates
avoid unregistering widget model twice...
avoid unregistering widget model twice widgets are registered when the comm is created; closing unregisters them. Calling `close` a second time should be a no-op.

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simplevars.py
3 lines | 61 B | text/x-python | PythonLexer
from __future__ import print_function
x = 1
print('x is:',x)