Eryk Sun <eryk...@gmail.com> added the comment:
The code to copy a file could be rewritten to use a regex match. For example:
# Copy src to dst. If src is a base executable, copy a launcher.
dirname, filename = os.path.split(src)
m = re.match(r'(pythonw?)[0-9._]*((?:_d)?(?:\.exe|\.pdb))$',
filename.lower())
if m is not None:
src = os.path.join(os.path.dirname(__file__),
'scripts', 'nt', m.group(1) + m.group(2))
# If the base environment is a Python source build, use
# the launcher in the build directory instead of
# "Lib/venv/scripts/nt".
if sysconfig.is_python_build(True) or not os.path.isfile(src):
basename = ('venvlauncher' if m.group(1) == 'python' else
'venvwlauncher')
src = os.path.join(dirname, basename + m.group(2))
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<https://bugs.python.org/issue43749>
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