The modules described in this chapter provide a wide range of string manipulation operations. Here's an overview:
| string | Common string operations. |
| re | Perl-style regular expression search and match operations. |
| regex | Regular expression search and match operations. |
| regsub | Substitution and splitting operations that use regular expressions. |
| struct | Interpret strings as packed binary data. |
| fpformat | General floating point formatting functions. |
| StringIO | Read and write strings as if they were files. |
| cStringIO | Faster version of StringIO, but not subclassable. |