["python","ubuntu","ubuntu-20.04"]
Ubuntu 20.04 upgrade, Python missing libffi.so.6

I recently upgraded my OS to Ubuntu 20.04 LTS. Now when I try to import a library like Numpy in Python, I get the following error: ImportError: libffi.so.6: cannot open shared object file: No such file or directory I tried installing the libffi package, but apt can't locate it: sudo apt-get install libffi Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package libffi
It seems like I fixed it. I could be wrong, but here is what I think happened: Ubuntu 20.04 upgraded libffi6 to libffi7 Python is still looking for libffi6 What I did to fix it : Locate libffi.so.7 in your system $ find /usr/lib -name "libffi.so*" Create a simlink named libffi.so.6 that points to libffi.so.7: sudo ln -s /usr/path/to/libffi.so.7 /usr/lib/path/to/libffi.so.6 UPDATE: As noted by many users, this fix could have unintended consequences. The better way to do it is to reinstall python as @amichaud explained. This should be used as a last resort IF you're not using pyenv/virtualenv/etc in which case removing python will cause a lot of dependencies to be removed as well.