New submission from Guillaume Aldebert <galdeb...@gmail.com>:
noticed on windows10, 3.6.3-64 and 3.7.0a2-64:
using this test.py file:
#!/usr/bin/env python3
print('hello\n', end='', flush=True)
and running it in unbuffered mode:
C:\Dev>py -u test.py
hello
Traceback (most recent call last):
File "test.py", line 2, in <module>
print('hello\n', end='', flush=True)
OSError: [WinError 87] The parameter is incorrect
Note that (still using py -u):
print('hello', end='', flush=True) # works fine
print('', end='', flush=True) # raises OSError as well
----------
components: Windows
messages: 305726
nosy: Guillaume Aldebert, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: print('hello\n', end='', flush=True) raises OSError when ran with py -u
type: behavior
versions: Python 3.6, Python 3.7
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue31966>
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