113 lines
3.3 KiB
ReStructuredText
113 lines
3.3 KiB
ReStructuredText
:mod:`compileall` --- Byte-compile Python libraries
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===================================================
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.. module:: compileall
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:synopsis: Tools for byte-compiling all Python source files in a directory tree.
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This module provides some utility functions to support installing Python
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libraries. These functions compile Python source files in a directory tree,
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allowing users without permission to write to the libraries to take advantage of
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cached byte-code files.
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Command-line use
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----------------
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This module can work as a script (using :program:`python -m compileall`) to
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compile Python sources.
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.. program:: compileall
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.. cmdoption:: [directory|file]...
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Positional arguments are files to compile or directories that contain
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source files, traversed recursively. If no argument is given, behave as if
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the command line was ``-l <directories from sys.path>``.
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.. cmdoption:: -l
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Do not recurse.
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.. cmdoption:: -f
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Force rebuild even if timestamps are up-to-date.
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.. cmdoption:: -q
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Do not print the list of files compiled.
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.. cmdoption:: -d destdir
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Purported directory name for error messages.
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.. cmdoption:: -x regex
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Skip files with a full path that matches given regular expression.
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.. cmdoption:: -i list
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Expand list with its content (file and directory names).
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.. cmdoption:: -b
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Write legacy ``.pyc`` file path names. Default is to write :pep:`3147`-style
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byte-compiled path names.
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Public functions
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----------------
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.. function:: compile_dir(dir, maxlevels=10, ddir=None, force=False, rx=None, quiet=False, legacy=False, optimize=-1)
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Recursively descend the directory tree named by *dir*, compiling all :file:`.py`
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files along the way. The *maxlevels* parameter is used to limit the depth of
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the recursion; it defaults to ``10``. If *ddir* is given, it is used as the
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base path from which the filenames used in error messages will be generated.
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If *force* is true, modules are re-compiled even if the timestamps are up to
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date.
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If *rx* is given, it specifies a regular expression of file names to exclude
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from the search; that expression is searched for in the full path.
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If *quiet* is true, nothing is printed to the standard output in normal
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operation.
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If *legacy* is true, old-style ``.pyc`` file path names are written,
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otherwise (the default), :pep:`3147`-style path names are written.
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*optimize* specifies the optimization level for the compiler. It is passed to
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the built-in :func:`compile` function.
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.. versionchanged:: 3.2
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Added the *optimize* parameter.
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.. function:: compile_path(skip_curdir=True, maxlevels=0, force=False, legacy=False, optimize=-1)
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Byte-compile all the :file:`.py` files found along ``sys.path``. If
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*skip_curdir* is true (the default), the current directory is not included in
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the search. All other parameters are passed to the :func:`compile_dir`
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function.
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.. versionchanged:: 3.2
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Added the *optimize* parameter.
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To force a recompile of all the :file:`.py` files in the :file:`Lib/`
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subdirectory and all its subdirectories::
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import compileall
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compileall.compile_dir('Lib/', force=True)
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# Perform same compilation, excluding files in .svn directories.
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import re
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compileall.compile_dir('Lib/', rx=re.compile('/[.]svn'), force=True)
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.. seealso::
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Module :mod:`py_compile`
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Byte-compile a single source file.
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