str.replace(old, new[, count]) Return a copy of the string with all occurrences of substring old replaced by new

bytearray.rfind(sub[, start[, end]]) Return the highest index in the sequence where the subsequence sub is found, such

bytearray.isalnum() Return true if all bytes in the sequence are alphabetical ASCII characters or ASCII decimal digits and the

str.islower() Return true if all cased characters [4] in the string are lowercase and there is at least one cased character

str.rsplit(sep=None, maxsplit=-1) Return a list of the words in the string, using sep as the delimiter string. If maxsplit

union(other, ...) set | other | ... Return a new set with elements from the set and all others.

str.isidentifier() Return true if the string is a valid identifier according to the language definition, section Identifiers

bytes.istitle() bytearray.istitle() Return true if the sequence is ASCII titlecase and the sequence is not empty

keys() Return a new view of the dictionary’s keys. See the documentation of view objects.

bytes.rsplit(sep=None, maxsplit=-1) bytearray.rsplit(sep=None, maxsplit=-1) Split the binary sequence into subsequences