Everything was working perfectly until today, when for some reason my python.exe file disappeared from the Project Interpreter in Pycharm.
It was located in C:\users\my_name\Anaconda3\python.exe, and for some reason I can't find it anywhere!
Yet, all the packages are here (in the site-packages folder), and only the C:\users\my_name\Anaconda3\pythonw.exe is available.
With the latest however, some packages I installed on top of those available in Anaconda3 won't be recognized.
Therefore, how to get back the python.exe file?
The answer repeats the comment to the question.
I had the same issue once after Anaconda update - python.exe was missing. It was Anaconda 3 installed to Program Files folder by MS Visual Studio (Python 3.6 on Windows10 x64).
To solve the problem I manually copied python.exe file from the most fresh python package available (folder pkgs then folder like python-3.6.8-h9f7ef89_7).