URL: https://stackoverflow.com/questions/2429511/why-do-people-write-the-usr-bin-env-python-shebang-on-the-first-line-of-a-pyt If you have several versions of Python ...

Hi, %python3_fix_shebang and its younger brother have proven to be really useful, thanks. If python is present, the macro behaves as intended: [ 12s] ++ realpath /usr ...