Sudo Permission denied

[kojart]

Hello, All ubuntu users

I am facing a log in issue in Lubuntu. In the beginning I had a ful drive that lead me to a log in > X session warning. I solved this by deleting some personal data with rm a. However, as ubuntu beginner I misunderstood one of the scripts I read on-line and now everytime I use sudo I get the following:
"- bash: /usr/bin/python: Permission denied" and as regards the log in, even though I insert the correct password I get a new log in (the so-called "log in loop")

Thank you for your help, Tomas

[bubba2]

The problem could be with the file: /etc/sudoers