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Flush stderr on Windows

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While on Linux stderr is unbuffered, it is buffered on Windows. Always
flush stderr on Windows to ensure any error messages appear in the right
order to ease diagnosing.

Change-Id: I37300e384ecd3a51a321a48818f0114d6f3357a0
This commit is contained in:
Sebastian Schuberth 2018-07-13 11:47:10 +02:00
parent b10f0e5b9a
commit a9399846fa
1 changed files with 4 additions and 0 deletions
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@ -144,6 +144,10 @@ def _print(*objects, **kwargs):
out = kwargs.get('file', sys.stdout) out = kwargs.get('file', sys.stdout)
out.write(sep.join(objects) + end) out.write(sep.join(objects) + end)
# On Windows stderr is buffered, so flush to maintain the order of error messages.
if out == sys.stderr and platform.system() == "Windows":
out.flush()
# Python version check # Python version check
ver = sys.version_info ver = sys.version_info