workaround: add -S #! /usr/bin/env -S A=B python import os; print(os.environ["A"])
why? shebangs have the limitation (or feature) that you can pass only one argument so #! /usr/bin/env A=B python is parsed as argv[0] = "/usr/bin/env" argv[1] = "A=B python" you can see this with #! /usr/bin/printf A=B '(%s) ' 1 2 3 4 which prints A=B '(./test.sh) ' 1 2 3 4 and #! /usr/bin/env -S printf '(%s) ' 1 2 3 4 prints (1) (2) (3) (4) (./test.sh) now the question is, why does `argv[1] = "A=B python"` lead to infinite recursion? expected result: /usr/bin/env: ‘A=B python’: No such file or directory /usr/bin/env: use -[v]S to pass options in shebang lines just like #! /usr/bin/env hello world throws /usr/bin/env: ‘hello world’: No such file or directory /usr/bin/env: use -[v]S to pass options in shebang lines -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1421760 Title: /usr/bin/env hangs when a variable is set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/coreutils/+bug/1421760/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
