Ioerror: [errno 22] Invalid Argument Python Write

I am writing to network share and this is the piece of code which writes while not created: fileName = ''.join(random.choice(CANDIDATE_CHARS) for x in range(len)) fullPath

Solution 1:

I suspect your "urandom" buffer exceeds 64MB and thus hits a Windows operating system limit, which has similarly affected others when writing to a network share.