2 ms·Are you using a conda environment?by AaronWard 7y agoAre you using a conda environment?theodric 7y agoNo, pip everywhereAaronWard 7y agoCheck where you have pandas and covidify installed and make sure they are in the same site-packages. ps: pip is just a package manager, you should really consider using conda for creating environments (it will make your life a lot easier)