mirror of https://github.com/python/cpython
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@ -85,7 +85,7 @@ This section describes Python type objects and the singleton object
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\subsection{The None Object \label{noneObject}}
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\obindex{None@\texttt{None}}
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\obindex{None}
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Note that the \ctype{PyTypeObject} for \code{None} is not directly
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exposed in the Python/C API. Since \code{None} is a singleton,
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testing for object identity (using \samp{==} in C) is sufficient.
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@ -134,8 +134,7 @@ This object is accessed through the built-in name \code{None}.
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It is used to signify the absence of a value in many situations, e.g.,
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it is returned from functions that don't explicitly return anything.
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Its truth value is false.
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\ttindex{None}
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\obindex{None@{\texttt{None}}}
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\obindex{None}
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\item[NotImplemented]
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This type has a single value. There is a single object with this value.
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@ -144,8 +143,7 @@ Numeric methods and rich comparison methods may return this value if
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they do not implement the operation for the operands provided. (The
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interpreter will then try the reflected operation, or some other
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fallback, depending on the operator.) Its truth value is true.
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\ttindex{NotImplemented}
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\obindex{NotImplemented@{\texttt{NotImplemented}}}
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\obindex{NotImplemented}
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\item[Ellipsis]
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This type has a single value. There is a single object with this value.
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@ -48,7 +48,7 @@ function and the resulting string is written to standard output (see
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section~\ref{print}) on a line by itself. (Expression statements
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yielding \code{None} are not written, so that procedure calls do not
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cause any output.)
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\ttindex{None}
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\obindex{None}
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\indexii{string}{conversion}
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\index{output}
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\indexii{standard}{output}
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