diff options
| author | Georg Brandl <georg@python.org> | 2010-08-02 19:36:36 (GMT) |
|---|---|---|
| committer | Georg Brandl <georg@python.org> | 2010-08-02 19:36:36 (GMT) |
| commit | c589a70e1766ca63b6f3edab5ae197fe49511e25 (patch) | |
| tree | ff0592a37679d7f4791b0f6cbec45b983f83ba25 /Doc | |
| parent | 9499bb76a389142d7fd080945f5e449302a4c9a4 (diff) | |
| download | cpython-c589a70e1766ca63b6f3edab5ae197fe49511e25.zip cpython-c589a70e1766ca63b6f3edab5ae197fe49511e25.tar.gz cpython-c589a70e1766ca63b6f3edab5ae197fe49511e25.tar.bz2 | |
#9438: clarify that constant names also cannot be assigned as attributes.
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/constants.rst | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/Doc/library/constants.rst b/Doc/library/constants.rst index 89b7d71..b69d117 100644 --- a/Doc/library/constants.rst +++ b/Doc/library/constants.rst @@ -3,15 +3,6 @@ Built-in Constants A small number of constants live in the built-in namespace. They are: - -.. note:: - - :data:`None`, :data:`False`, :data:`True` and :data:`__debug__` cannot be - reassigned (assignments to them raise :exc:`SyntaxError`), so they can be - considered "true" constants. - -.. XXX False, True, None are keywords too - .. data:: False The false value of the :class:`bool` type. Assignments to ``False`` @@ -50,6 +41,12 @@ A small number of constants live in the built-in namespace. They are: Assignments to :const:`__debug__` are illegal and raise a :exc:`SyntaxError`. See also the :keyword:`assert` statement. +.. note:: + + The names :data:`None`, :data:`False`, :data:`True` and :data:`__debug__` + cannot be reassigned (assignments to them, even as an attribute name, raise + :exc:`SyntaxError`), so they can be considered "true" constants. + Constants added by the :mod:`site` module ----------------------------------------- |