bpo-42856: Add --with-wheel-pkg-dir=PATH configure option (GH-24210)
Add --with-wheel-pkg-dir=PATH option to the ./configure script. If specified, the ensurepip module looks for setuptools and pip wheel packages in this directory: if both are present, these wheel packages are used instead of ensurepip bundled wheel packages. Some Linux distribution packaging policies recommend against bundling dependencies. For example, Fedora installs wheel packages in the /usr/share/python-wheels/ directory and don't install the ensurepip._bundled package. ensurepip: Remove unused runpy import.
bpo-42955: Add Python/module_names.h (GH-24258)
Add a private list of all stdlib modules: _Py_module_names. * Add Tools/scripts/generate_module_names.py script. * Makefile: Add "make regen-module-names" command. * setup.py: Add --list-module-names option. * GitHub Action and Travis CI also runs "make regen-module-names", not ony "make regen-all", to ensure that the module names remains up to date.