Dieter Maurer wrote: > Stephan Lukits wrote at 2020-3-31 17:44 +0300: >>background: >> >>- a daemon creates package p1 (e.g. directory with __init__.py-file) and >>in p1 a module m1 is created. >> >>- Then the daemon wants to import from m1, which functions (so far all >>the time). >> >>- Then a module m2 is created in p1 and the daemon wants to import from >>m2 which fails (most of the time but *not* always) with >>ModuleNotFoundError. >> >>See the little test script at the end which reproduces the problem. >> ... > > I remember a similar report (some time ago). There, caching has > been responsible. I have forgotten how to invalidate the caches. > But, you could try logic found in > `importlib._bootstrap_external.PathFinder.invalidate_caches`.
[brainstorm mode] Do namespace packages cache as aggressively? Maybe it would help to omit p1/__init__.py. -- https://mail.python.org/mailman/listinfo/python-list
