On Sun, Feb 16, 2014 at 9:32 AM, Jabba Laci <jabba.l...@gmail.com> wrote: > #!/usr/bin/env python -u > > But if I want to run it from the command line ($ ./unbuffered.py), I > get this error: > > /usr/bin/env: python -u: No such file or directory > > env is looking for "python -u" but such a command doesn't exist. > > How to overcome this problem? I could write > > #!/usr/bin/python -u
That's a fundamental limitation with the shebang syntax: you can pass exactly one argument. Passing more than one is platform-dependent - some Unixes will pass multiple args, some will pass the whole string as a single arg (which is what you're seeing here), and I think some will discard everything from the space onward. What you could do is add a wrapper called 'pythonu'.which invokes 'env python -u %*'. Be aware, though, that shebanging to a shell script isn't safe either; modern Linuxes support it, but to be truly cross-platform, you'd have to write pythonu in a compiled language and make a binary. ChrisA -- https://mail.python.org/mailman/listinfo/python-list