Before executing errors

Would you mind helping with an error before executing:

Path does not exist: ‘python.exe’


Are you using the latest version of sen2cor? Since version 2.4, the python executable is part of the package and should be found automatically.
Please carefully go through these steps of installation: Sen2cor 2.4.0 on SNAP 6.0

Besides, your input product product looks a bit strange. Usually, sen2cor requires the original input name to be able to determine all required parameters, e.g. S2A_MSIL1C…
It is not advised to change the input product before executing sen2cor.

Thanks a lot!