| Features | Description | Method name/portal |
| Concatenated string | Concatenate the sequence into a complete string. | join |
| Split string | Split a character string according to the specified characters. | split |
| Type judgment | Determine whether a string is all numeric strings. | isdigit |
| Determine whether a string is all uppercase and lowercase letters. | isalpha | |
| Determine whether a string is all numeric or uppercase and lowercase letters. | isalnum | |
| String count | Count the number of occurrences of the specified character string in the source character string. | count |
| Remove the string at the beginning and end | Remove the specified string at both ends of the string. | strip |
| Typesetting method | Center the string content. | center |
| Align the content of the string to the left. | light | |
| Align the string content to the right. | rjust | |
| Uppercase and lowercase letters conversion | Swap uppercase and lowercase letters in the string. | swapcase |
| Convert uppercase letters to lowercase letters. | lower | |
| Convert lowercase letters to uppercase letters. | upper | |
| Capitalize the first letter | Capitalize the first letter of the string. | capitalize |
| Capitalize the first letter of each word in the string. | title | |
| Find string | Find the last occurrence of a string in another string. | rfind |
| Find the first occurrence of a string in another string. | find | |
| Detect the beginning of a string | Check whether the string starts with the specified string. | startswith |
| Detect end of string | Check whether the string ends with the specified string. | endswith |
| String replacement | Replace all or part of the string. | replace |