[Python] ModuleNotFoundError: No module named 'NSKeyedUnarchiver'

I struggle with the error

ModuleNotFoundError: No module named 'NSKeyedUnarchiver'


which raises on import, after installing the module NSKeyedUnArchiver via pip.

Project setup (MacOS):

$ pip -m venv env
$ source env/bin/activate
$ which python
/Users/Abid/Entwicklung/python/test-nskeyedunarchiver/env/bin/python
$ which pip
/Users/Abid/Entwicklung/python/test-nskeyedunarchiver/env/bin/pip
$ pip freeze
NSKeyedUnArchiver==1.5.1
$ python -c "from nskeyedunarchiver import NSKeyedUnArchiver"
Traceback (most recent call last):
File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'nskeyedunarchiver'
$ python -c "import NSKeyedUnArchiver"
Traceback (most recent call last):
File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'NSKeyedUnArchiver'


Any ideas how to solve this?

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