Use both read() and readlines() with subprocess

Question

I currently have the following:

    filecmd = subprocess.Popen(['git', 'diff', commit, commit2, file],
                                stdout=subprocess.PIPE, stderr=null)
    gitoutraw = filecmd.stdout.read()
    gitoutrawlines = filecmd.stdout.readlines()

This causes gitoutrawlines to be blank. How can I set both variables? I've tried using just gitoutraw = filecmd.stdout.read() and converting it into a list, but I've been unsuccessful.

Answer 1

gitoutrawlines = gitoutraw.split("\\n")

Answer 2

if you do :

output,error = filecmd.communicate()

communicate give tuple of (stdoutdata,stderror)

output will contain the desired result. Now you can manipulate it as you want.

you can use the Tony way