-ssg5ssg20.6.3.0r13.0.zip- -

import re filename = "ssg5ssg20.6.3.0r13.0.zip" pattern = r"ssg5ssg(\d+.\d+.\d+.\d+)r(\d+.\d+)"

Based on the pattern in your string "-ssg5ssg20.6.3.0r13.0.zip-" , this looks like a for a software package, possibly related to a SSG (Static Site Generator) or a build tool . -ssg5ssg20.6.3.0r13.0.zip-

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 ssg5ssg20.6.3.0r13.0.zip import re filename = "ssg5ssg20