Python capturing terminal output

Question

Hey i run into a problem which is how python can capture the output like this command

os.system("apt install apt-transport-https") 

and then if its allready installed to skip it so it dont make a new install ?

Answer 1

Try using os.popen or subprocess :

from subprocess import Popen, PIPE

process = Popen(['apt', 'install', 'apt-transport-https'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
print(stdout)

With the output captured in stdout , you can search that string for the results you want.

Answer 2

command = 'apt install apt-transport-https'
r = os.popen(command) #Execute command
info = r.readlines()  #read command output
for line in info:  #handle output line by line
    line = line.strip('\r\n')
    print line