Simple function to print diff of two strings

python_diff.py

import subprocess


def diff(one, two):
    with tempfile.TemporaryDirectory() as tmpdir:
        f1, f2 = ('%s/%s' % (tmpdir, n) for n in (1,2))
        for f, txt in zip((f1, f2), (one, two)):
            with open(f, 'w') as f:
                f.write(str(txt))
        cmd = ('diff -w %s %s' % (f1, f2)).split()
        with subprocess.Popen(cmd,
                              stderr=subprocess.PIPE,
                              stdout=subprocess.PIPE) as popen:
            out, err = map(bytes.decode, popen.communicate())
        print(out)
        print(err)