def hashtable_lookup(htable, key):
index = hash_string(key, len(htable))
bucket = htable[index]
for entry in bucket:
if entry[0] == key:
return entry[1]
return None
def hashtable_update(htable, key, value):
index = hash_string(key, len(htable))
bucket = htable[index]
for entry in bucket:
if entry[0] == key:
entry[1] = value
return htable
bucket.append([key, value])
return htable
