A story that failed when trying to remove the suffix from the string with rstrip

In rstrip, I wanted to do something like scraping if it matches the specified suffix.

rstrip.py


'012345_1.jpg'.rstrip('_1.jpg')  #Expected value:012345 Result: 012345
'012345_9.jpg'.rstrip('_1.jpg')  #Expected value: 012345_9.jpg result: 012345_9
'012345_11.jpg'.rstrip('_1.jpg') #Expected value: 012345_11.jpg result: 012345

As a result of worrying for an hour, it was written properly in the document.

The chars argument is not a suffix; rather, all combinations of its values are stripped 5. Built-in Types — Python v2.7 documentation

I thought I could write it cool, but in the end I responded with replace.

replace.py


'012345_1.jpg'.replace('_1.jpg', '')  #Expected value:012345 Result: 012345
'012345_9.jpg'.replace('_1.jpg', '')  #Expected value: 012345_9.jpg result: 012345_9.jpg
'012345_11.jpg'.replace('_1.jpg', '') #Expected value: 012345_11.jpg result: 012345_11.jpg

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