.. versionadded:: 2.1
+This module provides classes and functions for comparing sequences. It
+can be used for example, for comparing files, and can produce difference
+information in various formats, including HTML and context and unified
+diffs. For comparing directories and files, see also, the :mod:`filecmp` module.
.. class:: SequenceMatcher
The :mod:`filecmp` module defines functions to compare files and directories,
-with various optional time/correctness trade-offs.
+with various optional time/correctness trade-offs. For comparing files,
+see also the :mod:`difflib` module.
The :mod:`filecmp` module defines the following functions: