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Issue #20599: Force ASCII encoding for stdout in test_cleanup() of test_builtin

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On Windows, the codec of sys.stdout is implemented in Python. At exit, the
codec may be unloaded before the destructor tries to write something to
sys.stdout.
This commit is contained in:
Victor Stinner 2014-02-12 18:27:55 +01:00
parent 76a6326068
commit 8da4fb5a1c
1 changed files with 11 additions and 3 deletions
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14
Lib/test/test_builtin.py
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@ -1604,10 +1604,10 @@ class ShutdownTest(unittest.TestCase):
class C:
def __del__(self):
print("before", flush=True)
print("before")
# Check that builtins still exist
len(())
print("after", flush=True)
print("after")
c = C()
# Make this module survive until builtins and sys are cleaned
@ -1617,7 +1617,15 @@ class ShutdownTest(unittest.TestCase):
# through a GC phase.
here = sys.modules[__name__]
"""
rc, out, err = assert_python_ok("-c", code)
# Issue #20599: Force ASCII encoding to get a codec implemented in C,
# otherwise the codec may be unloaded before C.__del__() is called, and
# so print("before") fails because the codec cannot be used to encode
# "before" to sys.stdout.encoding. For example, on Windows,
# sys.stdout.encoding is the OEM code page and these code pages are
# implemented in Python
rc, out, err = assert_python_ok("-c", code,
PYTHONIOENCODING="ascii",
__cleanenv=True)
self.assertEqual(["before", "after"], out.decode().splitlines())