Source code: Lib/html/entities.py
A dictionary that maps HTML5 named character references  to the equivalent Unicode character(s), e.g. html5['gt;'] == '>'. Note that the trailing semicolon is included in the name (e.g. 'gt;'), however some of the names are accepted by the standard even without the semicolon: in this case the name is present with and without the ';'.
New in version 3.3.
A dictionary mapping XHTML 1.0 entity definitions to their replacement text in ISO Latin-1.
A dictionary that maps HTML entity names to the Unicode codepoints.
A dictionary that maps Unicode codepoints to HTML entity names.