[Chapel Merge] Document Python stdout/stderr buffering behavior

Branch: refs/heads/main
Revision: f09f2514f7826b01705de95ca97c775ef0e2d92f
Author: jabraham17
Link: Document Python stdout/stderr buffering behavior by jabraham17 · Pull Request #26624 · chapel-lang/chapel · GitHub
Log Message:
Document Python stdout/stderr buffering behavior (#26624)

Document the behavior of IO with Chapel and Python interspersed, and
tell users how to deal with it.

  • start_test test/library/packages/Python
  • start_test test/library/packages/Python with GASNet

[Reviewed by @DanilaFe]

Compare: Comparing b789f5b6d242e1a93659c45c555e9d1657efa65f...7dda356d7e2fbaf18ec7c9828abf6472eca402dd · chapel-lang/chapel · GitHub

Diff:
M modules/packages/Python.chpl
M test/library/packages/Python/correctness/argPassingTest.chpl
D test/library/packages/Python/correctness/argPassingTest.comm-none.good
M test/library/packages/Python/correctness/argPassingTest.good
M test/library/packages/Python/correctness/customType.chpl
D test/library/packages/Python/correctness/customType.comm-none.good
M test/library/packages/Python/correctness/customType.good
M test/library/packages/Python/correctness/customType.py
https://github.com/chapel-lang/chapel/pull/26624.diff