Up to now there is no thread way to read the umask in Python

https://stackoverflow.com/questions/53227072/reading-umask-thread-safe

You can use this pattern:

current_umask = os.umask(0)  # line1
os.umask(current_umask)      # line2
return current_umask

A thread which executes between line1 and line2 will have a different umask.

I would be great, if the python standard library would provide correspondig thread safe method.

Related question at stackoverflow: https://stackoverflow.com/questions/53227072/reading-umask-thread-safe