3 PEP 263: Source Code Encodings
Python source files can now be declared as being in different character set encodings.
Encodings are declared by including a specially formatted comment in the first or second
line of the source file. For example, a UTF-8 file can be declared with:
# -*- coding: UTF-8 -*-
Without such an encoding declaration, the default encoding used is 7-bit ASCII.
Executing or importing modules that contain string literals with 8-bit characters and have
no encoding declaration will result in a DeprecationWarning
being signalled by Python 2.3; in 2.4 this will be a syntax error.
The encoding declaration only affects Unicode string literals, which will be converted
to Unicode using the specified encoding. Note that Python identifiers are still restricted
to ASCII characters, so you can't have variable names that use characters outside of the