:mod:`zipimport` --- Import modules from Zip archives
This module adds the ability to import Python modules (:file:`\*.py`, :file:`\*.py[co]`) and packages from ZIP-format archives. It is usually not needed to use the :mod:`zipimport` module explicitly; it is automatically used by the built-in :keyword:`import` mechanism for :data:`sys.path` items that are paths to ZIP archives.
Typically, :data:`sys.path` is a list of directory names as strings. This module also allows an item of :data:`sys.path` to be a string naming a ZIP file archive. The ZIP archive can contain a subdirectory structure to support package imports, and a path within the archive can be specified to only import from a subdirectory. For example, the path :file:`example.zip/lib/` would only import from the :file:`lib/` subdirectory within the archive.
Any files may be present in the ZIP archive, but only files :file:`.py` and :file:`.py[co]` are available for import. ZIP import of dynamic modules (:file:`.pyd`, :file:`.so`) is disallowed. Note that if an archive only contains :file:`.py` files, Python will not attempt to modify the archive by adding the corresponding :file:`.pyc` or :file:`.pyo` file, meaning that if a ZIP archive doesn't contain :file:`.pyc` files, importing may be rather slow.
ZIP archives with an archive comment are currently not supported.
This module defines an exception:
:class:`zipimporter` is the class for importing ZIP files.
Create a new zipimporter instance. archivepath must be a path to a ZIP file, or to a specific path within a ZIP file. For example, an archivepath of :file:`foo/bar.zip/lib` will look for modules in the :file:`lib` directory inside the ZIP file :file:`foo/bar.zip` (provided that it exists).
:exc:`ZipImportError` is raised if archivepath doesn't point to a valid ZIP archive.
Here is an example that imports a module from a ZIP archive - note that the :mod:`zipimport` module is not explicitly used.
$ unzip -l example.zip Archive: example.zip Length Date Time Name -------- ---- ---- ---- 8467 11-26-02 22:30 jwzthreading.py -------- ------- 8467 1 file $ ./python Python 2.3 (#1, Aug 1 2003, 19:54:32) >>> import sys >>> sys.path.insert(0, 'example.zip') # Add .zip file to front of path >>> import jwzthreading >>> jwzthreading.__file__ 'example.zip/jwzthreading.py'