Traceback (most recent call last):


 "c:\users\user\miniconda3\envs\py3_env\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3021, in _dep_map

return self.__dep_map


 "c:\users\user\miniconda3\envs\py3_env\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2815, in `__getattr__`

raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map

Traceback (most recent call last):
 
 "C:\path\to\PsychoPy3\lib\site-packages\psychopy\app\builder\validators.py", line 58, in Validate

message, valid = self.check(parent)
 
 "C:\path\to\PsychoPy3\lib\site-packages\psychopy\app\builder\validators.py", line 208, in check

if not code.strip() == '':
AttributeError: 'NoneType' object has no attribute 'strip'
