Python standard library: html

By default, single quotes are escaped to #x27;:

html.escape("foo'bar&baz") -> foo'bar&baz

If the second parameter is set to False, single quotes are not escaped:

html.escape("foo'bar&baz", False) -> foo'bar&baz

html.unescape('foo&bar') -> foo&bar

standard library

urllib.parse.urlencode