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authorFred Drake <fdrake@acm.org>2001-07-20 20:56:11 (GMT)
committerFred Drake <fdrake@acm.org>2001-07-20 20:56:11 (GMT)
commit88fdaa7c9e3838b0de0051127d52b08a80056fec (patch)
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parent6d988559a38791333884f80aff9224826a70e3ee (diff)
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Typo: PyArgs_ParseTuple --> PyArg_ParseTuple
Moved the PyArg_Parse*(), Py_BuildValue() functions to the Utilities chapter, added a minimal description and reference to the Extending manual for Py_BuildValue().
Diffstat (limited to 'Doc/api')
-rw-r--r--Doc/api/api.tex92
1 files changed, 62 insertions, 30 deletions
diff --git a/Doc/api/api.tex b/Doc/api/api.tex
index 1b8f25d..5d2820e 100644
--- a/Doc/api/api.tex
+++ b/Doc/api/api.tex
@@ -1131,9 +1131,11 @@ release.
\chapter{Utilities \label{utilities}}
-The functions in this chapter perform various utility tasks, such as
-parsing function arguments and constructing Python values from C
-values.
+The functions in this chapter perform various utility tasks, ranging
+from helping C code be more portable across platforms, using Python
+modules from C, and parsing function arguments and constructing Python
+values from C values.
+
\section{Operating System Utilities \label{os}}
@@ -1396,6 +1398,58 @@ internal table. This should be called before
\end{cfuncdesc}
+\section{Parsing arguements and building values
+ \label{arg-parsing}}
+
+These functions are useful when creating your own extensions functions
+and methods. Additional information and examples are available in
+\citetitle[../ext/ext.html]{Extending and Embedding the Python
+Interpreter}.
+
+\begin{cfuncdesc}{int}{PyArg_ParseTuple}{PyObject *args, char *format,
+ \moreargs}
+ Parse the parameters of a function that takes only positional
+ parameters into local variables. Returns true on success; on
+ failure, it returns false and raises the appropriate exception. See
+ \citetitle[../ext/parseTuple.html]{Extending and Embedding the
+ Python Interpreter} for more information.
+\end{cfuncdesc}
+
+\begin{cfuncdesc}{int}{PyArg_ParseTupleAndKeywords}{PyObject *args,
+ PyObject *kw, char *format, char *keywords[],
+ \moreargs}
+ Parse the parameters of a function that takes both positional and
+ keyword parameters into local variables. Returns true on success;
+ on failure, it returns false and raises the appropriate exception.
+ See \citetitle[../ext/parseTupleAndKeywords.html]{Extending and
+ Embedding the Python Interpreter} for more information.
+\end{cfuncdesc}
+
+\begin{cfuncdesc}{int}{PyArg_Parse}{PyObject *args, char *format,
+ \moreargs}
+ Function used to deconstruct the argument lists of ``old-style''
+ functions --- these are functions which use the
+ \constant{METH_OLDARGS} parameter parsing method. This is not
+ recommended for use in parameter parsing in new code, and most code
+ in the standard interpreter has been modified to no longer use this
+ for that purpose. It does remain a convenient way to decompose
+ other tuples, however, and may continue to be used for that
+ purpose.
+\end{cfuncdesc}
+
+\begin{cfuncdesc}{PyObject*}{Py_BuildValue}{char *format,
+ \moreargs}
+ Create a new value based on a format string similar to those
+ accepted by the \cfunction{PyArg_Parse*()} family of functions and a
+ sequence of values. Returns the value or \NULL{} in the case of an
+ error; an exception will be raised if \NULL{} is returned. For more
+ information on the format string and additional parameters, see
+ \citetitle[../ext/buildValue.html]{Extending and Embedding the
+ Python Interpreter}.
+\end{cfuncdesc}
+
+
+
\chapter{Abstract Objects Layer \label{abstract}}
The functions in this chapter interact with Python objects regardless
@@ -3353,7 +3407,7 @@ that array elements may be multi-byte values.
An example user of the buffer interface is the file object's
\method{write()} method. Any object that can export a series of bytes
through the buffer interface can be written to a file. There are a
-number of format codes to \cfunction{PyArgs_ParseTuple()} that operate
+number of format codes to \cfunction{PyArg_ParseTuple()} that operate
against an object's buffer interface, returning data from the target
object.
@@ -4939,6 +4993,10 @@ implementing new object types in C.
\chapter{Defining New Object Types \label{newTypes}}
+
+\section{Allocating Objects on the Heap
+ \label{allocating-objects}}
+
\begin{cfuncdesc}{PyObject*}{_PyObject_New}{PyTypeObject *type}
\end{cfuncdesc}
@@ -5042,32 +5100,6 @@ implementing new object types in C.
sure you need it.
\end{cfuncdesc}
-\begin{cfuncdesc}{int}{PyArg_ParseTuple}{PyObject *args, char *format,
- \moreargs}
- Parse the parameters of a function that takes only positional
- parameters into local variables. See
- \citetitle[../ext/parseTuple.html]{Extending and Embedding the
- Python Interpreter} for more information.
-\end{cfuncdesc}
-
-\begin{cfuncdesc}{int}{PyArg_ParseTupleAndKeywords}{PyObject *args,
- PyObject *kw, char *format, char *keywords[], \moreargs}
- Parse the parameters of a function that takes both positional and
- keyword parameters into local variables. See
- \citetitle[../ext/parseTupleAndKeywords.html]{Extending and
- Embedding the Python Interpreter} for more information.
-\end{cfuncdesc}
-
-\begin{cfuncdesc}{int}{PyArg_Parse}{PyObject *args, char *format, \moreargs}
- Function used to deconstruct the argument lists of ``old-style''
- functions --- these are functions which use the
- \constant{METH_OLDARGS} parameter parsing method. This is not
- recommended for new code, and most code in the standard interpreter
- has been modified to no longer use this.
-\end{cfuncdesc}
-
-Py_BuildValue
-
DL_IMPORT
\begin{cvardesc}{PyObject}{_Py_NoneStruct}