os.execl

I'm running into some trouble with deploying Django on the passenger_wsgi module with virtualenv. The Python code in the passenger_wsgi.py file, which should fix my problem is: import os, sys INTERP = '/home/login/.virtualenvs/env_name/bin/python' if sys.executable != INTERP: os.execl(INTERP, INTERP, *sys.argv) The first three lines I understand, but I only have a veeeery vague idea about the fourth one and that's the one that happens to be giving me an error: /home/login/.virtualenvs/env_name/bin/python: can't find '__main__.py' in '' So what is os.execl doing here exactly? And what does that

I want to run something like cat file.tar | base64 | myprogram -c "| base64 -d | tar -zvt " I use execlp to run the process. When i try to run something like cat it works, but if i try to run base64 -d | tar -zvt it doesn't work. I looked at the bash commands and I found out that I can run bash and tell him to run other programs. So it's something like: execlp ("bash", "-c", "base64 -d | tar -zvt", NULL); If I run it on the terminal, it works well, but using the execlp it dont work. If I use execlp("cat", "cat", NULL) it works. Someone knows how to use the -c param on execlp to execute

Is there a difference between os.execl() and os.execv() in python? I was using os.execl(python, python, *sys.argv) to restart my script (from here ). But it seems to start from where the previous script left. I want the script to start from the beginning when it restarts. Will this os.execv(__file__,sys.argv) do the job? command and idea from here. I couldn't find difference between them from the python help/documentation. Is there a way do clean restart? For a little more background on what I am trying to do please see my other question At the low level they do the same thing: they replace

I've a python script that has to launch a shell command for every file in a dir: import os files = os.listdir(".") for f in files: os.execlp("myscript", "myscript", f) This works fine for the first file, but after the "myscript" command has ended, the execution stops and does not come back to the python script. How can I do? Do I have to fork() before calling os.execlp() ? user39307 subprocess: The subprocess module allows you to spawn new processes, connect to their input/output/error pipes, and obtain their return codes. http://docs.python.org/library/subprocess.html Usage: import subprocess