I'm using Python 3.6 on Windows 7.
I have a script that uses standard python packages.
The script run fine from IDLE.
It used to run fine from Windows command too, but not anymore.
I don't know why. It complains about missing package like:

```
, line 4, in <module>
    import matplotlib.pyplot as plt
ModuleNotFoundError: No module named 'matplotlib'

```

The path looks ok (I've added all path found from IDLE / Path Browser):

```
PATH=C:\Users\olivier\AppData\Local\Programs\Python\Python36\lib\site-packages;C:\Users\olivier\AppData\Local\Programs\Python\Python36\Lib;C:\Users\olivier\AppData\Local\Programs\Python\Python36\DLLs;C:\Users\olivier\AppData\Local\Programs\Python\Python36\python36.zip;C:\Users\olivier\AppData\Local\Programs\Python\Python36\Scripts\;C:\Users\olivier\AppData\Local\Programs\Python\Python36\;C:\Users\olivier\AppData\Local\GitHubDesktop\bin

```

Any idea?

Thanks