gh-146310: Fix ensurepip to treat empty WHEEL_PKG_DIR as unset#146357

kimimgo wants to merge 2 commits intopython:mainpython/cpython:mainfrom

kimimgo:fix/ensurepip-empty-wheel-pkg-dir-146310kimimgo/cpython:fix/ensurepip-empty-wheel-pkg-dir-146310Copy head branch name to clipboard