Python solver: ModuleNotFoundError: No module named 'java.lang' (or 'java.io')

[ge0ffrey]

If the python solver is executed from a working directory that contains a directory called java (or maybe javax too), we get this error message:

ModuleNotFoundError: No module named 'java.lang'

Give a nice error message.

(this is an issue for the backlog)

[Christopher-Chianelli]

Welcome to the world of Python packaging, where what you see is the expected behaviour of Python.
In particular, by having a directory with a given name in your working directory, Python will automatically consider it a namespace package (and it will take precedence over import hooks).

See https://peps.python.org/pep-0420/#specification for details.

[Christopher-Chianelli]

(Something similar will happen if you used the name timefold for your directory)