command line arguments using subprocess

[Jim]

Hello,

I'm trying to use subprocess to drive a Perl script. I'm having some
trouble getting it to spot the command line arguments. Basically, if
I call subprocess(args ).wait() where args has a second item, I can't
convince the Perl script to see it. Below is a pretty small example.
If someone could get me unstuck, I'd appreciate it. (Python 2.4.4c1,
if that helps.)

Thanks,
Jim


............... ... /home/ftpmaint/test.pl........ ........
#!/usr/bin/env perl
print "\$0 is -->$0<--\n";
print "\$ARGV[0] is -->$ARGV[0]<--\n";

die "usage: $0 PKGNAME\n" unless @ARGV == 1;


............... ./home/ftpmaint/subtest.py..... ............
import os,subprocess

args=['/home/ftpmaint/test.pl','a']
p=subprocess.Po pen(args,shell= True,stdout=sub process.PIPE,st derr=subprocess .PIPE,cwd=os.ge tcwd())
retCode=p.wait( )
print "retCode=",retC ode
print "stdout>>",p.st dout.read()
print "stderr>>",p.st derr.read()


............ some command line work ..............
ftpmaint@millst one:~$ ./test.pl
$0 is --./test.pl--
$ARGV[0] is --><--
usage: ./test.pl PKGNAME

ftpmaint@millst one:~$ ./test.pl a
$0 is --./test.pl--
$ARGV[0] is -->a<--

ftpmaint@millst one:~$ python subtest.py
retCode= 255
stdout= $0 is --/home/ftpmaint/test.pl--
$ARGV[0] is --><--

[Gabriel Genellina]

Re: command line arguments using subprocess

En Wed, 14 Mar 2007 16:51:04 -0300, Jim <jhefferon@smcv t.eduescribió:

I'm trying to use subprocess to drive a Perl script. I'm having some
trouble getting it to spot the command line arguments. Basically, if
I call subprocess(args ).wait() where args has a second item, I can't
convince the Perl script to see it. Below is a pretty small example.
If someone could get me unstuck, I'd appreciate it. (Python 2.4.4c1,
if that helps.)
args=['/home/ftpmaint/test.pl','a']
p=subprocess.Po pen(args,shell= True,stdout=sub process.PIPE,st derr=subprocess .PIPE,cwd=os.ge tcwd())

Try with 'perl' explicitely as first argument, or without shell=True; if
cwd is the current dir, there is no need to include it.

--
Gabriel Genellina