Git custom sub-command to diff with Meld

git-meld3

#!/usr/bin/env python

# import subprocess
import os
import sys

# C:/PROGRA~1/Meld/Meld.exe
binaryPath = "meld"

base = str(sys.argv[1])
ours = base.replace('base', 'ours')
theirs = ours.replace('ours', 'theirs')
print(ours)
print(base)
print(theirs)
# subprocess.call([binaryPath, ours, base, theirs])
cmd = "{0} {1} {2} {3}".format(binaryPath, ours, base, theirs)
os.system(cmd)