Question

I am running python commands on solaris environment. I am not able to execute subprocess.call on it as it gives me an error in execute_child “[Errno 2] No such file or directory”. I tried alternative ways using popen2/3/4 but it throws an error “DeprecationWarning: The popen2 module is deprecated. Use the subprocess module.” I dont want to use os.system as because of some limitations. Is there some other way to make this work?
Any help will be appreciated.

Answer 1

Have you tried subprocess.popen()? It’s as simple as:

output, error = subprocess.popen(your_command, shell=True, 
                stdout=subprocess.PIPE, stderr=subprocess.PIPE);

It replaces popen2(), which is indeed deprecated:

os.popen2(cmd[, mode[, bufsize]])

Deprecated since version 2.6: This function is obsolete. Use the
subprocess module. Check especially the Replacing Older Functions with
the subprocess Module section.

Regarding the No such file or directory error, try using absolute path.