@@ -280,23 +280,23 @@ def test_diff_submodule(self):
280280"""Test that diff is able to correctly diff commits that cover submodule changes"""
281281# Init a temp git repo that will be referenced as a submodule
282282sub = Repo .init (self .submodule_dir )
283- with open (f" { self .submodule_dir } "w" )as sub_subfile :
283+ with open (self .submodule_dir + " /subfile""w" )as sub_subfile :
284284sub_subfile .write ("" )
285285sub .index .add (["subfile" ])
286286sub .index .commit ("first commit" )
287287
288288# Init a temp git repo that will incorporate the submodule
289289repo = Repo .init (self .repo_dir )
290- with open (f" { self .repo_dir } "w" )as foo_test :
290+ with open (self .repo_dir + " /test""w" )as foo_test :
291291foo_test .write ("" )
292292repo .index .add (['test' ])
293- Submodule .add (repo ,"subtest" ,"sub" ,url = f "file://{ self .submodule_dir } "
293+ Submodule .add (repo ,"subtest" ,"sub" ,url = "file://" + self .submodule_dir )
294294repo .index .commit ("first commit" )
295295repo .create_tag ('1' )
296296
297297# Add a commit to the submodule
298298submodule = repo .submodule ('subtest' )
299- with open (f" { self .repo_dir } "w" )as foo_sub_subfile :
299+ with open (self .repo_dir + " /sub/subfile""w" )as foo_sub_subfile :
300300foo_sub_subfile .write ("blub" )
301301submodule .module ().index .add (["subfile" ])
302302submodule .module ().index .commit ("changed subfile" )