popen2.Popen3 doesn't work well for me

[alexrait1]

I launch my python. Then I write this:
import popen2
popen2.Popen3("mplayer *.mpg")

it starts playing for 2 seconds.. and then stops...
if I quit python (ctrl - D)
mplayer continues to run and plays music as it should...

Any ideas?

 

[Steve Holden]

I launch my python. Then I write this:
import popen2
popen2.Popen3("mplayer *.mpg")

it starts playing for 2 seconds.. and then stops...
if I quit python (ctrl - D)
mplayer continues to run and plays music as it should...

Any ideas?

It looks like the process you start is blocking on standard input or
output. Does

os.system("mplayer *.mpg")

do what you want?

regards
Steve

 

[alexrait1]

It does but that's not what I want. I need a class which I can query
for process termination for instance...
Is there a way to overcome this problem with Popen3?

 

[Steven Bethard]

It does but that's not what I want. I need a class which I can query
for process termination for instance...
Is there a way to overcome this problem with Popen3?

If you're using Python 2.4 you should look into the subprocess module.
I think these docs might be what you're looking for:

http://docs.python.org/lib/node235.html

STeVe