[Python-Dev] #! magic

[Oleg Broytmann]

On Sun, Jan 20, 2008 at 06:25:57PM +0100, Jeroen Ruigrok van der Werven wrote:
> -On [20080120 18:12], Oleg Broytmann (phd at phd.pp.ru) wrote:
> >   On most Unicies #! magic may have only one parameter after the program;
> >the program here is env, the parameter is python, and that's all. Adding
> >python options will result in different errors - some platforms silently
> >ignores the options, some reports an error, some tries to find "python -E -s"
> >in the PATH and report "Bad command or file name".
> 
> IEEE Std 1003.1, 2004:
> 
> The shell reads its input

   A shell has nothing to do with it as it is the OS (exec system call)
that upon reading the magic of the file sees #! and executes the program
(up to the first space) and pass to the program the first (and the only)
parameter.

#! /usr/bin/env python -O

   [trying to execute the script on Linux]

/usr/bin/env: python -O: No such file or directory

Oleg.
-- 
     Oleg Broytmann            http://phd.pp.ru/            phd at phd.pp.ru
           Programmers don't die, they just GOSUB without RETURN.