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+
+:mod:`compileall` --- Byte-compile Python libraries
+===================================================
+
+.. module:: compileall
+ :synopsis: Tools for byte-compiling all Python source files in a directory tree.
+
+
+This module provides some utility functions to support installing Python
+libraries. These functions compile Python source files in a directory tree,
+allowing users without permission to write to the libraries to take advantage of
+cached byte-code files.
+
+The source file for this module may also be used as a script to compile Python
+sources in directories named on the command line or in ``sys.path``.
+
+
+.. function:: compile_dir(dir[, maxlevels[, ddir[, force[, rx[, quiet]]]]])
+
+ Recursively descend the directory tree named by *dir*, compiling all :file:`.py`
+ files along the way. The *maxlevels* parameter is used to limit the depth of
+ the recursion; it defaults to ``10``. If *ddir* is given, it is used as the
+ base path from which the filenames used in error messages will be generated.
+ If *force* is true, modules are re-compiled even if the timestamps are up to
+ date.
+
+ If *rx* is given, it specifies a regular expression of file names to exclude
+ from the search; that expression is searched for in the full path.
+
+ If *quiet* is true, nothing is printed to the standard output in normal
+ operation.
+
+
+.. function:: compile_path([skip_curdir[, maxlevels[, force]]])
+
+ Byte-compile all the :file:`.py` files found along ``sys.path``. If
+ *skip_curdir* is true (the default), the current directory is not included in
+ the search. The *maxlevels* and *force* parameters default to ``0`` and are
+ passed to the :func:`compile_dir` function.
+
+To force a recompile of all the :file:`.py` files in the :file:`Lib/`
+subdirectory and all its subdirectories::
+
+ import compileall
+
+ compileall.compile_dir('Lib/', force=True)
+
+ # Perform same compilation, excluding files in .svn directories.
+ import re
+ compileall.compile_dir('Lib/', rx=re.compile('/[.]svn'), force=True)
+
+
+.. seealso::
+
+ Module :mod:`py_compile`
+ Byte-compile a single source file.
+