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Python library: lxml

*lxml` advertises itself as being the «most feature-rich and easy-to-use library for processing XML and HTML in the Python language».

Installation on Windows

pip install lxml
…
… Rödel rödel rödel
…
Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?
This Stackoverflow answer suggests to download an unofficial Windows Binary (a wheel file) from from https://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml.
However, trying to follow this advice, I got the error message ERROR: … is not a supported wheel on this platform.
This Stackoverflow answer suggested to go like so: 
py -m pip install -U pip wheel setuptools
pip install lxml
However, this attempt was not successful, either (the main cause for the failure possibly being fatal error C1083: Cannot open include file: 'libxml/xpath.h': No such file or directory.
TODO: 
> easy_install lxml
WARNING: The easy_install command is deprecated and will be removed in a future version.
Searching for lxml
Best match: lxml 4.5.2
Adding lxml 4.5.2 to easy-install.pth file

Using c:\python39\lib\site-packages
Processing dependencies for lxml
Finished processing dependencies for lxml

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