Question: 
Write a function to remove uppercase substrings from a given string by using regex.


Model's Code:
import re

def remove_uppercase(s):
    return re.sub(r'[A-Z]', '', s)



Sample Correct Code:
import re
def remove_uppercase(str1):
  remove_upper = lambda text: re.sub('[A-Z]', '', text)
  result =  remove_upper(str1)
  return (result)


Asserts:
assert remove_uppercase('cAstyoUrFavoRitETVshoWs') == 'cstyoravoitshos'
assert remove_uppercase('wAtchTheinTernEtrAdIo') == 'wtchheinerntrdo'
assert remove_uppercase('VoicESeaRchAndreComMendaTionS') == 'oiceachndreomendaion'


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 459 of 974: 336/459 (73.20261437908496%): success