gistfile1.txt

from diffmatchpatch import diff_match_patch

DMP = diff_match_patch()

def diff(a, b):
    diffs = DMP.diff_main(a, b)
    if len(diffs) > 2:
        DMP.diff_cleanupEfficiency(diffs)
    if len(diffs) > 0:
        delta = DMP.diff_toDelta(diffs)
        return delta

def patch(a, d):
    diffs = DMP.diff_fromDelta(a, d)
    patches = DMP.patch_make(a, diffs)
    result = DMP.patch_apply(patches, a)
    return result[0]


def diffpatch(a, b):
    d = diff(a, b)
    print d
    end = patch(a, d)
    print repr(d), end == b

# diffpatch(u'\ud83d\udc7f y', u'\ud83d\udc7f x')
# diffpatch(u"\U0001f47f y", u"\U0001f47f x")

diffpatch(u"\U0001f47f y".encode('utf-8'), u"\U0001f47f x".encode('utf-8'))