So I started a script that sends me an email if a specific condition occours and its running from vps, but since I've not yet received any emails, I'm wondering if the script is still running. I also forgot the name of the "xxxxxx.py" file thats running. 
What can I do??
If your VPS is linux-based with a ssh server listening, you should be able to connect to it, opening a terminal. After that You can try using the ps ax or top or htop command to display all processes running.
You can then use a pipe to filter out the word "py" :
ps ax | grep "py"
How to check if a script is still running in my server?