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bpo-42260: PyConfig_Read() only parses argv once (GH-23168)

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The PyConfig_Read() function now only parses PyConfig.argv arguments
once: PyConfig.parse_argv is set to 2 after arguments are parsed.
Since Python arguments are strippped from PyConfig.argv, parsing
arguments twice would parse the application options as Python
options.

* Rework the PyConfig documentation.
* Fix _testinternalcapi.set_config() error handling.
* SetConfigTests no longer needs parse_argv=0 when restoring the old
  configuration.
This commit is contained in:
Victor Stinner 2020-11-05 18:58:07 +01:00 • committed by GitHub
parent f3cb814315
commit dc42af8fd1
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6 changed files with 131 additions and 102 deletions
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8
Lib/test/_test_embed_set_config.py
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@ -20,7 +20,7 @@ class SetConfigTests(unittest.TestCase):
self.sys_copy = dict(sys.__dict__)
def tearDown(self):
self.set_config(parse_argv=0)
_testinternalcapi.set_config(self.old_config)
sys.__dict__.clear()
sys.__dict__.update(self.sys_copy)
@ -234,6 +234,12 @@ class SetConfigTests(unittest.TestCase):
self.assertEqual(sys.argv, ['python_program', 'args'])
self.assertEqual(sys.orig_argv, ['orig', 'orig_args'])
self.set_config(parse_argv=0,
argv=[],
orig_argv=[])
self.assertEqual(sys.argv, [''])
self.assertEqual(sys.orig_argv, [])
def test_pycache_prefix(self):
self.check(pycache_prefix=None)
self.check(pycache_prefix="pycache_prefix")