Los módulos descritos en este capítulo proporcionan servicios diversos que están disponibles en todas las versiones de Python. He aquí un resumen:
| math | Mathematical functions (sin() etc.). | 
| cmath | Mathematical functions for complex numbers. | 
| random | Generate pseudo-random numbers with various common distributions. | 
| whrandom | Floating point pseudo-random number generator. | 
| bisect | Algoritmos de bisección de listas para búsqueda binaria. | 
| array | Vectores eficientes de valores numéricos de tipos uniformes. | 
| ConfigParser | Configuration file parser. | 
| fileinput | Perl-like iteration over lines from multiple input streams, with ``save in place'' capability. | 
| calendar | General functions for working with the calendar, including some emulation of the Unix<#10683#><#10683#> cal program. | 
| cmd | Build line-oriented command interpreters. | 
| shlex | Simple lexical analysis for Unix<#11002#><#11002#> shell-like languages. |