Bug report
Bug description:
The Android testbed can't distinguish between stdout/stderr messages which were triggered by a newline, and those triggered by a manual call to flush. This doesn't affect Python's own test suite very much, but when the testbed is used by cibuildwheel, it makes a mess of some packages' test suites. For example, pytest's "one dot per test" progress indicator shows every dot on a separate line.
CPython versions tested on:
CPython main branch
Operating systems tested on:
Other