I am trying to run the following python code:
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import concurrent.futures import logging import time class FakeDatabase: def __init__(self): self.value = 0 def update(self, name): logging.info("Thread %s: starting update", name) local_copy = self.value local_copy += 1 time.sleep(0.1) self.value = local_copy logging.info("Thread %s: finishing update", name) if __name__ == "__main__": format = "%(asctime)s: %(message)s" logging.basicConfig(format=format, level=logging.INFO, datefmt="%H:%M:%S") database = FakeDatabase() logging.info("Testing update. Starting value is %d.", database.value) with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: for index in range(2): executor.submit(database.update, index) logging.info("Testing update. Ending value is %d.", database.value)
I no longer have Centos now, but would like to know what is wrong. I also updated Python to 3.8 with same results.
Centos installation is standard, no configuration whatsoever. Updated to latest Centos.