popen4

[billie]

Hi all. I'm trying to execute system commands and capture the output by
using popen4:

stdout example:

exec_cmd = popen2.popen4("echo hello!")
output = exec_cmd[0].read()

hello

stderr example:

exec_cmd = popen2.popen4("echobv hello!")
output = exec_cmd[0].read()

Unrecognized command

The problem occurs when I try to execute interactive commands like ftp,
python intepreter etc...
In this case the program crashes without even giving an error.
Suggestions?

Regards

 

[Piet van Oostrum]

b> Hi all. I'm trying to execute system commands and capture the output by
b> using popen4:

b> stdout example:

exec_cmd = popen2.popen4("echo hello!")
output = exec_cmd[0].read()

b> hello

b> stderr example:

exec_cmd = popen2.popen4("echobv hello!")
output = exec_cmd[0].read()

b> Unrecognized command

b> The problem occurs when I try to execute interactive commands like ftp,
b> python intepreter etc...
b> In this case the program crashes without even giving an error.
Crashes?

b> Suggestions?

I think you need something like pyexpect for this.

 

[billie]

I think you need something like pyexpect for this.

PyExpect seems to be no more mantained.

 

[Ganesan Rajagopal]

PyExpect seems to be no more mantained.

Try pexpect instead. http://pexpect.sourceforce.net/

Ganesan

 

[Ralf Muschall]

Try pexpect instead. http://pexpect.sourceforce.net/

^

That's a content-free ad site. You probably mean sourceforGe.

Ralf