PEP 594 – Removing dead batteries from Python’s standard library

To be removed in The chunk module provides support for reading and writing Electronic Arts’ Interchange File Format. To be removed in The imghdr module is a simple tool to guess the image file format from the first 32 bytes of a file or buffer. pure Python (depends on audioop C extension for some operations) To be removed in The sunau module provides support for Sun AU sound format.

Source: www.python.org