Python: Extract values from XML file

I have a XML file and I need to extract some numeric values.

I would like to write a simple Python script, which open/reads the file and
extracts these values. How can I do that?

thank you very much!!!

This is how the file looks like; I want to extract the values inside " "
and save them in an array my_values[].

...

...
    
        ...
        ...
    
    
    ...
    ...
....