On 2020-04-03 23:21:25 +0300 (+0300), ellis.magaud@pp.inet.fi wrote: [...] > What is the correct way to build a clean version of python2.7 on > Debian9 that will be compatible with already packaged python2.7 > modules? The Python modules with C extensions packaged in Debian are built against the Python development library headers for the version of the Python interpreter which is packaged in Debian. If you replace the interpreter with a different version I expect you'll at least have to relink, if not entirely recompile, those extensions against newer headers. I don't personally know a way to go about that short of rebuilding those additional modules from source. You might be better off switching to a newer version of Debian which provides a newer Python 2.7 release and has the other packages you need already built against it, or using some other Python package management solution like conda or virtualenv. -- Jeremy Stanley
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