MS Visual C++ not recognized when installing Python package

Question

The problem

I am trying to install a Python package called dedupe. It's available with pip install dedupe, but get the following error:

    Running setup.py install for Levenshtein-search ... error
    error: subprocess-exited-with-error
    [...]
    Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft 
    C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools

But I have MS C++ Build Tools installed (the latest version).

And the strange thing is: I once had a 32bit version of Python 3.8 on my PC, and here, dedupe was installed without problems (but then didn't process my data due to a so called MemoryError – a problem I ascribe to the 32bit version).

What I tried

• Uninstalled all Python interpreters on the system
• Un- and re-installed MS C++ Build Tools
• Re-installed Python 3.10 64bit
• created a venv-environment with that interpreter
• updated setuptools

But still, the error persists.

I have looked for similar questions and tried their solutions:

• How to install Visual C++ Build Tools: I have Build Tools installed (Workload "Desktop Development with C++)
• Installing Visual Studio doesn't do the job for me, including the latest answer. And the weird thing: While I wasn't able to install misaka, too (the package discussed in this question), installing spacy was not a problem (while some other person had problems with that).

So?

Does anybody have an idea why my 64bit Python might not recognize Visual C++?