This is impossible. The parent bash is suspended while the python process runs. `` (not '') in Perl runs it in a child process. The equivalent is at the botto

This is impossible. The parent bash is suspended while the python process runs. `` (not '') in Perl runs it in a child process. The equivalent is at the bottom of http://hyperpolyglot.org/scripting http://hyperpolyglot.org/scripting - or read the subprocess module documentation.