if which pypyclean >/dev/null 2>&1; then pypyclean -p #PACKAGE# #ARGS# else dpkg -L #PACKAGE# | perl -ne 's,/([^/]*)\.py$,/__pycache__/\1.*, or next; unlink $_ or die $! foreach glob($_)' find /usr/lib/pypy/dist-packages/ -type d -name __pycache__ -empty -print0 | xargs --null --no-run-if-empty rmdir fi