Traceback (most recent call last):


 "c:\program files\python37\lib\site-packages\ffmpeg_normalize\_logger.py", line 18, in emit

tqdm.set_lock(Lock())
AttributeError: type object 'tqdm' has no attribute 'set_lock'

Traceback (most recent call last):


 "state-test.py", line 5, in <module>

machine = Machine(states, initial='A')


 "/usr/local/lib/python3.5/dist-packages/transitions/core.py", line 463, in __init__

self.add_model(model)


 "/usr/local/lib/python3.5/dist-packages/transitions/core.py", line 482, in add_model

model.trigger = partial(get_trigger, model)
AttributeError: 'str' object has no attribute 'trigger'
