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bpo-45020: Default to using frozen modules unless running from source tree. (gh-28940)

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The default was "off".  Switching it to "on" means users get the benefit of frozen stdlib modules without having to do anything.  There's a special-case for running-in-source-tree, so contributors don't get surprised when their stdlib changes don't get used.

https://bugs.python.org/issue45020
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Eric Snow 2021-10-16 13:16:08 -06:00 • committed by GitHub
parent fe0d9e22a5
commit b9cdd0fb9c
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7 changed files with 91 additions and 25 deletions
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4
Lib/site.py
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@ -418,8 +418,10 @@ def setcopyright():
files, dirs = [], []
# Not all modules are required to have a __file__ attribute. See
# PEP 420 for more details.
if hasattr(os, '__file__'):
here = getattr(sys, '_stdlib_dir', None)
if not here and hasattr(os, '__file__'):
here = os.path.dirname(os.__file__)
if here:
files.extend(["LICENSE.txt", "LICENSE"])
dirs.extend([os.path.join(here, os.pardir), here, os.curdir])
builtins.license = _sitebuiltins._Printer(