[Python] How do I install and run a python script

This is the ultimate noob question for python - but I'm asking it because I simply cannot fine the answer anywhere on the internet.

How do I install and run a python script?


For example, say, this repo: https://github.com/TineKolenik/hoffman_reproduction


I tried the following : pip3 install -r requirements.txt
But then I get a page of errors which begins with :

Successfully uninstalled numpy-1.22.4
Running setup.py install for numpy ... error
ERROR: Command errored out with exit status 1:
command: /Library/Frameworks/Python.framework/Versions/3.9/bin/python3.9 -u -c


'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/_n/dj0hlyp12xz_c2_9pjwgktt00000gn/T/pip-install-btfk24yw/numpy/setup.py'"'"'; file='"'"'/private/var/folders/_n/dj0hlyp12xz_c2_9pjwgktt00000gn/T/pip-install-btfk24yw/numpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /private/var/folders/_n/dj0hlyp12xz_c2_9pjwgktt00000gn/T/pip-record-ffl_swjt/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /Users/kris/Library/Python/3.9/include/python3.9/numpy cwd: /private/var/folders/_n/dj0hlyp12xz_c2_9pjwgktt00000gn/T/pip-install-btfk24yw/numpy/ Complete output (5277 lines): Running from numpy source directory.

Note: if you need reliable uninstall behavior, then install
with pip instead of using `setup.py install`:

- `pip install .` (from a git repo or downloaded source
release)​

pip3 install . returns:

Defaulting to user installation because normal site-packages is not writeable ERROR: Directory '.' is not installable. Neither 'setup.py' nor 'pyproject.toml' found.
​

python3 main.py gives :

Traceback (most recent call last): File "/Users/kris/Projects/hoffman_reproduction/main.py", line 3, in import matplotlib.pyplot as plt ModuleNotFoundError: No module named 'matplotlib'
​

I've tried running python packages in the past and have never managed to get one to run.

Please help me out with the basic commands I need to install and run this repo - or pick another python repo, if there is something wrong with this one.

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