Traceback (most recent call last):


 "/Users/igortkachenko/Tools/kivy-designer/venv/lib/python3.6/site-packages/kivy/uix/widget.py", line 265, in _widget_destructor


 "/Users/igortkachenko/Tools/kivy-designer/venv/lib/python3.6/site-packages/kivy/lang/builder.py", line 760, in unbind_widget


 "kivy/weakproxy.pyx", line 30, in kivy.weakproxy.WeakProxy.__getattr__
AttributeError: 'weakref' object has no attribute 'cline_in_traceback'

Traceback (most recent call last):


 "orderBook.py", line 33, in <module>

order = my_bittrex.get_market_summaries()


 "/usr/local/lib/python3.5/dist-packages/bittrex/bittrex.py", line 110, in get_market_summaries

return self.api_query('getmarketsummaries')


 "/usr/local/lib/python3.5/dist-packages/bittrex/bittrex.py", line 62, in api_query

request_url += urllib.urlencode(options)
AttributeError: module 'urllib' has no attribute 'urlencode'