def countSubStringMatch(target,key):
index_mover = 0
count = 0
while index_mover < len(target):
instance = str.find(target, key, index_mover)
if instance >= 0:
count += 1
index_mover = instance + len(key)
else:
break
return 'The number of instances of ' + key + ' in ' + target + ' is ' + str(count)