Christopher Haster 554e4b1444 Fixed Popen deadlock issue in test.py ...

As noted in Python's subprocess library:

> This will deadlock when using stdout=PIPE and/or stderr=PIPE and the
> child process generates enough output to a pipe such that it blocks
> waiting for the OS pipe buffer to accept more data.

Curiously, this only became a problem when updating to Ubuntu 20.04
in CI (python3.6 -> python3.8).

2022-03-20 03:44:39 -05:00

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