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Groups > comp.lang.python > #90085

Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API

References <a0a85a0a-555f-4fff-bc1f-49873dd297c5@googlegroups.com> <554AB8A5.708@davea.name>
Date 2015-05-07 12:19 +1000
Subject Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.198.1430965194.12865.python-list@python.org> (permalink)

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On Thu, May 7, 2015 at 10:58 AM, Dave Angel <davea@davea.name> wrote:
> There's nothing Windows-specific about that behaviour.  In Linux, there are
> bash commands that can only be run by using shell=True.  Fortunately Popen
> didn't make the mistake of pretending it's a shell.

But bash commands aren't the same as shell scripts. For instance, if
you want to enumerate bash aliases, you can't exec() to the 'alias'
command, because there isn't one. But shell scripts *can* be exec'd:

$ grep $ exec_demo.*
exec_demo.c:#include <stdio.h>
exec_demo.c:#include <unistd.h>
exec_demo.c:int main()
exec_demo.c:{
exec_demo.c: printf("This part is coming from C code.\n");
exec_demo.c: int err=execl("./exec_demo.sh", 0);
exec_demo.c: printf("exec() failed! %d\n",err);
exec_demo.c:}
exec_demo.sh:#!/bin/sh
exec_demo.sh:echo This part ran from the shell.
exec_demo.sh:echo Hello, world!
$ ./a.out
This part is coming from C code.
This part ran from the shell.
Hello, world!
$ pike -e 'Process.exec("./exec_demo.sh");'
This part ran from the shell.
Hello, world!
$ python -c 'import subprocess; subprocess.call(["./exec_demo.sh"])'
This part ran from the shell.
Hello, world!
(Python doesn't seem to have any way to 'exec', but a subprocess comes
to the same thing.)

I don't know about Windows, but it seems reasonable to be able to be
able to run many types of program equally, including batch files. But
maybe Windows is just weak that way.

ChrisA

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PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Stefan Zimmermann <zimmermann.code@gmail.com> - 2015-05-06 15:11 -0700
  Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Dave Angel <davea@davea.name> - 2015-05-06 20:58 -0400
  Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-07 12:19 +1000
    Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-07 13:33 +1000
      Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-07 13:57 +1000
      Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Gisle Vanem <gvanem@yahoo.no> - 2015-05-07 09:15 +0200
        Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Stefan Zimmermann <zimmermann.code@gmail.com> - 2015-05-07 02:38 -0700
          Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Stefan Zimmermann <zimmermann.code@gmail.com> - 2015-05-07 03:03 -0700
            Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Marko Rauhamaa <marko@pacujo.net> - 2015-05-07 13:10 +0300
              Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-07 20:24 +1000
              Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Dave Angel <davea@davea.name> - 2015-05-07 07:28 -0400
              Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-07 21:43 +1000
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Marko Rauhamaa <marko@pacujo.net> - 2015-05-07 15:41 +0300
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-07 22:53 +1000
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Marko Rauhamaa <marko@pacujo.net> - 2015-05-07 16:44 +0300
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-08 00:03 +1000
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Marko Rauhamaa <marko@pacujo.net> - 2015-05-07 18:24 +0300
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Stefan Zimmermann <zimmermann.code@gmail.com> - 2015-05-07 08:45 -0700
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Marko Rauhamaa <marko@pacujo.net> - 2015-05-07 21:13 +0300
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Stefan Zimmermann <zimmermann.code@gmail.com> - 2015-05-07 16:27 -0700
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-08 11:50 +1000
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Ben Finney <ben+python@benfinney.id.au> - 2015-05-08 12:26 +1000
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Marko Rauhamaa <marko@pacujo.net> - 2015-05-08 09:14 +0300
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-07 09:14 -0600
                Re: PEP idea: On Windows, subprocess should implicitly support .bat and .cmd scripts by using FindExecutable from win32 API Chris Angelico <rosuav@gmail.com> - 2015-05-08 11:46 +1000

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