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| -rw-r--r-- | Doc/ref/ref2.tex | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/Doc/ref/ref2.tex b/Doc/ref/ref2.tex index acce768..2ed8a5d 100644 --- a/Doc/ref/ref2.tex +++ b/Doc/ref/ref2.tex @@ -319,16 +319,18 @@ def for lambda try % When adding keywords, use reswords.py for reformatting -Note that although the identifier \code{as} can be used as part of the -syntax of \keyword{import} statements, it is not currently a reserved -word by default.) +\versionchanged[\constant{None} became a constant and is now +recognized by the compiler as a name for the built-in object +\constant{None}. Although it is not a keyword, you cannot assign +a different object to it]{2.4} \versionchanged[Both \keyword{as} and \keyword{with} are only recognized -when the \code{with_statement} feature has been enabled. It will always -be enabled in Python 2.6. See section~\ref{with} for details]{2.5} +when the \code{with_statement} future feature has been enabled. +It will always be enabled in Python 2.6. See section~\ref{with} for +details. Note that using \keyword{as} and \keyword{with} as identifiers +will always issue a warning, even when the \code{with_statement} future +directive is not in effect]{2.5} -In some future version of Python, the identifier \code{None} will -become a keyword. \subsection{Reserved classes of identifiers\label{id-classes}} |