8000 bpo-45020: Default to using frozen modules only on non-debug builds. by ericsnowcurrently · Pull Request #28590 · python/cpython · GitHub
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bpo-45020: Default to using frozen modules only on non-debug builds. #28590

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bpo-45020: Default to using frozen modules only on non-debug builds. #28590

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6946b19
Default to "on" if a non-debug build.
ericsnowcurrently Sep 27, 2021
60b8694
Show FROZEN_MODULES_DEFAULT in sysconfig data.
ericsnowcurrently Sep 27, 2021
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Show FROZEN_MODULES_DEFAULT in sysconfig data.
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@ericsnowcurrently
ericsnowcurrently committed Sep 27, 2021
commit 60b869489c53ea464ef5308e98bb5656b3345d5e
7 changes: 7 additions & 0 deletions Lib/sysconfig.py
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Expand Up @@ -436,6 +436,9 @@ def _generate_posix_vars():
if _PYTHON_BUILD:
vars['BLDSHARED'] = vars['LDSHARED']

Py_DEBUG = bool(vars['Py_DEBUG'])
vars['FROZEN_MODULES_DEFAULT'] = 0 if Py_DEBUG else 1

# There's a chicken-and-egg situation on OS X with regards to the
# _sysconfigdata module after the changes introduced by #15298:
# get_config_vars() is called by get_platform() as part of the
Expand Down Expand Up @@ -490,6 +493,10 @@ def _init_non_posix(vars):
vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT
vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable))
vars['TZPATH'] = ''
# infer build vars
Py_DEBUG = hasattr(sys, 'gettotalrefcount')
vars['Py_DEBUG'] = 1 if Py_DEBUG else 0
vars['FROZEN_MODULES_DEFAULT'] = 0 if Py_DEBUG else 1

#
# public APIs
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0