Return true if the string ends with the specified suffix , otherwise return false. With optional start , test beginning at that position. With optional end , stop comparing at that position. Return a copy of the string where all tab characters are expanded using spaces. If tabsize is not given, a tab size of 8 characters is assumed.
Optional arguments start and end are interpreted as in slice notation.
Return -1 if sub is not found. Return true if all characters in the string are alphabetic and there is at least one character, false otherwise. Return true if all cased characters in the string are lowercase and there is at least one cased character, false otherwise. Return true if there are only whitespace characters in the string and the string is not empty, false otherwise. Return true if the string is a titlecased string, i.e. uppercase characters may only follow uncased characters and lowercase characters only cased ones.