it's not work in line 185 There seems to be an error in the documentation comments

can use:
write this :repo = git.Repo("~/practiceS/long-story/.git")
or write this :repo = git.Repo("~/practiceS/long-story")

it's not work:
repo = git.Repo("~/practiceS/long-story.git")
and
repo = git.Repo("~/practiceS/long-story/")