I'm trying to access the progress of time consuming Git operations using GitPython. I tried the sample solution taken from the official documentation, and also tried passing in a method following the exact signature of the update method below. Everytime I callfetch(),push(),pull()with the parameterprogress=<anything>, the programm is stuck and theupdate method does not get called. If I call those operations without setting theprogress parameter, it works flawlessly.

• $ git --version is 2.21.0
• Callingsys.stdout.flush() afterprint() does not help either
• I useassert to assure my repo objects are available and in the expected state
• ProgressPrinter() yields notNone
• I tried calling the functions from the main thread and multithreaded
• I took a look at theimplementation (line 350) ofRemoteProgress and also theimplementation (line 815) ofpush() and do not see a reason, why it would not continue execution
• I found out, that when I assign myProgressPrinter instance and pass the assigned variable, the programm is not stuck anymore. Yet theupdate() method does not get called and no progress is printed:

# Not stuck anymore, yet no progresspp=ProgressPrinter()fetch_info=origin.fetch(progress=pp)

Core of my implementation:

fromgitimportRemoteProgressclassProgressPrinter(RemoteProgress):defupdate(self,op_code,cur_count,max_count=None,message=''):print("Is this even called?")

And later on:

origin=repo.remotes.originassertorigin.exists()fetch_info=origin.fetch(progress=ProgressPrinter())

Any recommendations on how to investigate this problem furthermore? I've been debugging this for several days now and feel like I am missing something.