Get the last '/' or '\\' character in Python

Question

If I have a string that looks like either

./A/B/c.d

OR

.\A\B\c.d

How do I get just the "./A/B/" part? The direction of the slashes can be the same as they are passed.

This problem kinda boils down to: How do I get the last of a specific character in a string?

Basically, I want the path of a file without the file part of it.

Answer 1

Normally os.path.dirname() is used for this.