Python: Essential Reference, Third Edition

zipfile

The zipfile module is used to manipulate files encoded in the popular zip format (originally known as PKZIP, although now supported by a wide variety of programs). The following functions are available:

is_zipfile(filename)

Tests filename to see if it’s a valid zip file. Returns True if filename is a zip file; returns False otherwise.

ZipFile(filename [, mode [, compression]])

Opens a zip file, filename, and returns a ZipFile instance. mode is 'r' to read from an existing file, 'w' to truncate the file and write a new file, or 'a' to append to an existing file. For 'a' mode, if filename is an existing zip file, new files are added to it. If filename is not a zip file, the archive is simply appended to the end of the file. compression ...