This module provides regular expressions according to `RFC 3986 "Uniform Resource Identifier (URI): Generic Syntax" and `RFC 3987 "Internationalized Resource Identifiers (IRIs)" and utilities for composition and relative resolution of references. * http://tools.ietf.org/html/rfc3986 * http://tools.ietf.org/html/rfc3987 WWW: http://pypi.python.org/pypi/rfc3987