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+--- Thread: run_pipe_line (/thread-16152.html)
run_pipe_line - Skaperen - Feb-16-2019
last year i posted a 22 line version of a function to run a pipeline of multiple commands.
today i am posting a much shorter version with only 10 lines.
pipecmds.py
import subprocess
def pipecmds(*cmds,**opts):
if not cmds:
return
p = []
for cmd in cmds[:-1]:
p.append(subprocess.Popen(cmd,stdout=subprocess.PIPE,**opts))
opts['stdin']=p[-1].stdout
p.append(subprocess.Popen(cmds[-1],**opts))
return [x.wait() for x in p]this function takes a list of the command argument strings in each function call argument for as many commands you want to run in a pipeline up to the maximum resources your hardware, system, or system administrator allows. you may use a tuple in place of any list.if you saved the old 22 line version, please replace it or augment it with this new 10 line version.