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authorFred Drake <fdrake@acm.org>2000-06-16 19:58:42 (GMT)
committerFred Drake <fdrake@acm.org>2000-06-16 19:58:42 (GMT)
commita8455abcf87250204c6a71fadabf503d45dfe4c0 (patch)
tree1a94bf594cc3aa1ab7fd54a4d96df1bbfe4f7268 /Doc/api
parent29dc381ce0fae7b5356a78228c7aad1c352fbda5 (diff)
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Documented PySequence_List() and PySequence_Tuple().
Added a bit more documentation in the chapter on building extension types, including Py_FindMethod() documentation. Several minor consistency nits were fixed.
Diffstat (limited to 'Doc/api')
-rw-r--r--Doc/api/api.tex74
1 files changed, 54 insertions, 20 deletions
diff --git a/Doc/api/api.tex b/Doc/api/api.tex
index 11ccffa..0c3cf1f 100644
--- a/Doc/api/api.tex
+++ b/Doc/api/api.tex
@@ -210,7 +210,7 @@ caller is said to receive a \emph{new} reference. When no ownership
is transferred, the caller is said to \emph{borrow} the reference.
Nothing needs to be done for a borrowed reference.
-Conversely, when calling a function passes it a reference to an
+Conversely, when a calling function passes it a reference to an
object, there are two possibilities: the function \emph{steals} a
reference to the object, or it does not. Few functions steal
references; the two notable exceptions are
@@ -602,7 +602,7 @@ described following the functions which accept them as parameters.
(console or terminal input or \UNIX{} pseudo-terminal), return the
value of \cfunction{PyRun_InteractiveLoop()}, otherwise return the
result of \cfunction{PyRun_SimpleFile()}. If \var{filename} is
- \NULL{}, this function uses \code{"???"} as the filename.
+ \NULL{}, this function uses \code{'???'} as the filename.
\end{cfuncdesc}
\begin{cfuncdesc}{int}{PyRun_SimpleString}{char *command}
@@ -1024,7 +1024,7 @@ Return true (nonzero) if the standard I/O file \var{fp} with name
which \samp{isatty(fileno(\var{fp}))} is true. If the global flag
\cdata{Py_InteractiveFlag} is true, this function also returns true if
the \var{name} pointer is \NULL{} or if the name is equal to one of
-the strings \code{"<stdin>"} or \code{"???"}.
+the strings \code{'<stdin>'} or \code{'???'}.
\end{cfuncdesc}
\begin{cfuncdesc}{long}{PyOS_GetLastModificationTime}{char *filename}
@@ -1663,6 +1663,17 @@ Return the first index \var{i} for which \code{\var{o}[\var{i}] ==
the Python expression \samp{\var{o}.index(\var{value})}.
\end{cfuncdesc}
+\begin{cfuncdesc}{PyObject*}{PySequence_List}{PyObject *o}
+Return a list object with the same contents as the arbitrary sequence
+\var{o}. The returned list is guaranteed to be new.
+\end{cfuncdesc}
+
+\begin{cfuncdesc}{PyObject*}{PySequence_Tuple}{PyObject *o}
+Return a tuple object with the same contents as the arbitrary sequence
+\var{o}. If \var{o} is a tuple, a new reference will be returned,
+otherwise a tuple will be constructed with the appropriate contents.
+\end{cfuncdesc}
+
\section{Mapping Protocol \label{mapping}}
@@ -2231,7 +2242,7 @@ Returns \NULL{} in case an exception was raised by the codec.
Returns a Python string object holding the UTF-16 encoded value of the
Unicode data in \var{s}.
-If \var{byteorder} is not 0, output is written according to the
+If \var{byteorder} is not \code{0}, output is written according to the
following byte order:
\begin{verbatim}
@@ -2240,7 +2251,7 @@ following byte order:
byteorder == 1: big endian
\end{verbatim}
-If byteorder is 0, the output string will always start with the
+If byteorder is \code{0}, the output string will always start with the
Unicode BOM mark (U+FEFF). In the other two modes, no BOM mark is
prepended.
@@ -2252,7 +2263,6 @@ Returns \NULL{} in case an exception was raised by the codec.
\end{cfuncdesc}
\begin{cfuncdesc}{PyObject*}{PyUnicode_AsUTF16String}{PyObject *unicode}
-
Returns a Python string using the UTF-16 encoding in native byte
order. The string always starts with a BOM mark. Error handling is
``strict''. Returns \NULL{} in case an exception was raised by the
@@ -3602,7 +3612,7 @@ the value of the \code{argv[0]} argument to the
\cfunction{main()}\ttindex{main()} function of the program. This is
used by \cfunction{Py_GetPath()}\ttindex{Py_GetPath()} and some other
functions below to find the Python run-time libraries relative to the
-interpreter executable. The default value is \code{"python"}. The
+interpreter executable. The default value is \code{'python'}. The
argument should point to a zero-terminated character string in static
storage whose contents will not change for the duration of the
program's execution. No code in the Python interpreter will change
@@ -3620,11 +3630,11 @@ should not modify its value.
Return the \emph{prefix} for installed platform-independent files. This
is derived through a number of complicated rules from the program name
set with \cfunction{Py_SetProgramName()} and some environment variables;
-for example, if the program name is \code{"/usr/local/bin/python"},
-the prefix is \code{"/usr/local"}. The returned string points into
+for example, if the program name is \code{'/usr/local/bin/python'},
+the prefix is \code{'/usr/local'}. The returned string points into
static storage; the caller should not modify its value. This
corresponds to the \makevar{prefix} variable in the top-level
-\file{Makefile} and the \programopt{-}\programopt{-prefix} argument to the
+\file{Makefile} and the \longprogramopt{prefix} argument to the
\program{configure} script at build time. The value is available to
Python code as \code{sys.prefix}. It is only useful on \UNIX{}. See
also the next function.
@@ -3635,11 +3645,11 @@ Return the \emph{exec-prefix} for installed platform-\emph{de}pendent
files. This is derived through a number of complicated rules from the
program name set with \cfunction{Py_SetProgramName()} and some environment
variables; for example, if the program name is
-\code{"/usr/local/bin/python"}, the exec-prefix is
-\code{"/usr/local"}. The returned string points into static storage;
+\code{'/usr/local/bin/python'}, the exec-prefix is
+\code{'/usr/local'}. The returned string points into static storage;
the caller should not modify its value. This corresponds to the
\makevar{exec_prefix} variable in the top-level \file{Makefile} and the
-\programopt{-}\programopt{-exec_prefix} argument to the
+\longprogramopt{exec-prefix} argument to the
\program{configure} script at build time. The value is available to
Python code as \code{sys.exec_prefix}. It is only useful on \UNIX{}.
@@ -3647,8 +3657,8 @@ Background: The exec-prefix differs from the prefix when platform
dependent files (such as executables and shared libraries) are
installed in a different directory tree. In a typical installation,
platform dependent files may be installed in the
-\code{"/usr/local/plat"} subtree while platform independent may be
-installed in \code{"/usr/local"}.
+\file{/usr/local/plat} subtree while platform independent may be
+installed in \file{/usr/local}.
Generally speaking, a platform is a combination of hardware and
software families, e.g. Sparc machines running the Solaris 2.x
@@ -3663,8 +3673,8 @@ bytecode files are platform independent (but not independent from the
Python version by which they were compiled!).
System administrators will know how to configure the \program{mount} or
-\program{automount} programs to share \code{"/usr/local"} between platforms
-while having \code{"/usr/local/plat"} be a different filesystem for each
+\program{automount} programs to share \file{/usr/local} between platforms
+while having \file{/usr/local/plat} be a different filesystem for each
platform.
\end{cfuncdesc}
@@ -3717,8 +3727,8 @@ Return the platform identifier for the current platform. On \UNIX{},
this is formed from the ``official'' name of the operating system,
converted to lower case, followed by the major revision number; e.g.,
for Solaris 2.x, which is also known as SunOS 5.x, the value is
-\code{"sunos5"}. On Macintosh, it is \code{"mac"}. On Windows, it
-is \code{"win"}. The returned string points into static storage;
+\code{'sunos5'}. On Macintosh, it is \code{'mac'}. On Windows, it
+is \code{'win'}. The returned string points into static storage;
the caller should not modify its value. The value is available to
Python code as \code{sys.platform}.
\withsubitem{(in module sys)}{\ttindex{platform}}
@@ -3728,7 +3738,7 @@ Python code as \code{sys.platform}.
Return the official copyright string for the current Python version,
for example
-\code{"Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam"}
+\code{'Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam'}
The returned string points into static storage; the caller should not
modify its value. The value is available to Python code as the list
@@ -4376,6 +4386,30 @@ intintargfunc, intobjargproc, intintobjargproc, objobjargproc,
destructor, printfunc, getattrfunc, getattrofunc, setattrfunc,
setattrofunc, cmpfunc, reprfunc, hashfunc
+\begin{ctypedesc}{PyCFunction}
+Type of the functions used to implement most Python callables in C.
+\end{ctypedesc}
+
+\begin{ctypedesc}{PyMethodDef}
+Structure used to describe a method of an extension type. This
+structure has four fields:
+
+\begin{tableiii}{l|l|l}{member}{Field}{C Type}{Meaning}
+ \lineiii{ml_name}{char *}{name of the method}
+ \lineiii{ml_meth}{PyCFunction}{pointer to the C implementation}
+ \lineiii{ml_flags}{int}{flag bits indicating how the call should be
+ constructed}
+ \lineiii{ml_doc}{char *}{points to the contents of the docstring}
+\end{tableiii}
+\end{ctypedesc}
+
+\begin{cfuncdesc}{PyObject*}{Py_FindMethod}{PyMethodDef[] table,
+ PyObject *ob, char *name}
+Return a bound method object for an extension type implemented in C.
+This function also handles the special attribute \member{__methods__},
+returning a list of all the method names defined in \var{table}.
+\end{cfuncdesc}
+
\section{Mapping Object Structures \label{mapping-structs}}