Question

I have an equivalent shell command(shown below) which I am trying to run “as-is” from a python script using call command on a linux box and running into compilation error,is there a better way other than call to runt this command?where am I going wrong?

from subprocess import call

def main ():

#ssh -p 29418 company.com gerrit query --commit-message --files --current-patch-set status:open project:platform/vendor/company-proprietary/wlan branch:master |grep refs| awk -F ' ' {'print $2'} |tee refspecs.txt
    call (["ssh -p 29418 company.com gerrit query", "--commit-message", "--files", "--current-patch-set", "status:open project:platform/vendor/company-proprietary/wlan branch:master","|grep refs| awk -F ' ' {'print $2'} |tee refspecs.txt")]

if __name__ == '__main__':
    main()

Answer 1

from subprocess import check_call

with open("refspecs.txt", "wb") as file:
    check_call("ssh -p 29418 company.com "
        "gerrit query --commit-message --files --current-patch-set "
        "status:open project:platform/vendor/company-proprietary/wlan branch:master |"
        "grep refs |"
        "awk -F ' ' '{print $2}'",
               shell=True,   # need shell due to the pipes
               stdout=file)  # redirect to a file

I’ve removed tee to suppress stdout.

Note: either part or even the whole command can be implemented in Python.