Hi, For the record, I am the developer of Construct library. And the question relates to it. https://construct.readthedocs.io/en/latest/#
I have an issue of Travis failing randomly at test cases. The cause is always __import__ failing to import a dynamically generated code. Library generates a string, saves it to a file (closes the file too), then __import__ it. I dont think there is anything wrong with the (generated imported) code itself. It seems like its some sort of issue with the Python runtime (or filesystem) not detecting the file because it was created only a moment ago. I tried to solve it by adding os.sync() between writing the file and importing it, but it seems to have only decreased the error rate, not solved it. Frankly, this is a heisenbug. Re-running the Travis job usually fixes it. Its random and happens very rarely. I havent pinpointed it to any particular version of CPython or Pypy (although I dont remember it ever happening on Pypy). An example: https://travis-ci.org/construct/construct/jobs/352213556 The code in question: https://github.com/construct/construct/blob/d9c645ed0a75b5a2b64318113cf69cac822fd8f5/construct/core.py#L402-L414 https://github.com/construct/construct/blob/d9c645ed0a75b5a2b64318113cf69cac822fd8f5/construct/core.py#L179-L180 -- ~ Arkadiusz Bulski ~ tel 503 357 111 lub WhatsApp/Telegram -- https://mail.python.org/mailman/listinfo/python-list
