change text to utf-8 python code example

Example 1: python open encoding utf-8

from io import open
f = open("test", mode="r", encoding="utf-8")

Example 2: python unicode point to utf8 string

#! /usr/bin/python3
import re

def makeNice(s):
    return re.subn('(#U[0-9a-f]{4})', lambda cp: chr(int(cp.groups()[0][2:],16)), s) [0]

a = '-#U2605-#U79c1-'
print(a, makeNice(a))