Error Compiling C Code For Python Hmmlearn Package

I'm having some trouble getting the hmmlearn package to install properly (in a virtual environment); it seems to have something to do with the underlying C code. The package instal

Solution 1:

I ran into the same issue a while ago and found the solution by trying everything possible. For whatever reason in some cases pip skips building C-extensions, when a package is saved into the cache directory. If you force pip to ignore the cache, it always builds the package from scratch, so the solution is to uninstall the package in the first place and then run pip install --no-cache-dir <package>