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authorLarry Hastings <larry@hastings.org>2014-01-26 08:42:02 (GMT)
committerLarry Hastings <larry@hastings.org>2014-01-26 08:42:02 (GMT)
commit0e25410319b5bfa62a0bb6123ab21514fe209dae (patch)
tree9c14c7933fbba06cf36f0cda082dd87e52ef8d80 /Doc/howto
parent23e37aa7b787fd41623c4f3f1eb7ca16ded2ef96 (diff)
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Documentation fixes, including fixing "suspicious" problems.
Diffstat (limited to 'Doc/howto')
-rw-r--r--Doc/howto/clinic.rst114
1 files changed, 64 insertions, 50 deletions
diff --git a/Doc/howto/clinic.rst b/Doc/howto/clinic.rst
index bfae20e..8fcc2e8 100644
--- a/Doc/howto/clinic.rst
+++ b/Doc/howto/clinic.rst
@@ -149,7 +149,7 @@ Let's dive in!
1. Find a Python builtin that calls either :c:func:`PyArg_ParseTuple`
or :c:func:`PyArg_ParseTupleAndKeywords`, and hasn't been converted
to work with Argument Clinic yet.
- For my example I'm using ``pickle.Pickler.dump()``.
+ For my example I'm using ``_pickle.Pickler.dump()``.
2. If the call to the ``PyArg_Parse`` function uses any of the
following format units::
@@ -214,7 +214,7 @@ Let's dive in!
Sample::
/*[clinic input]
- pickle.Pickler.dump
+ _pickle.Pickler.dump
Write a pickled representation of obj to the open file.
[clinic start generated code]*/
@@ -227,22 +227,27 @@ Let's dive in!
the top. (In our sample code we'll just show the two blocks next to
each other.)
+ The name of the class and module should be the same as the one
+ seen by Python. Check the name defined in the :c:type:`PyModuleDef`
+ or :c:type:`PyTypeObject` as appropriate.
+
+ When you declare a class, you must also specify two aspects of its type
+ in C: the type declaration you'd use for a pointer to an instance of
+ this class, and a pointer to the :c:type:`PyTypeObject` for this class.
+
Sample::
- /*[clinic input]
- module pickle
- class pickle.Pickler
- [clinic start generated code]*/
+ /*[clinic input]
+ module _pickle
+ class _pickle.Pickler "PicklerObject *" "&Pickler_Type"
+ [clinic start generated code]*/
- /*[clinic input]
- pickle.Pickler.dump
+ /*[clinic input]
+ _pickle.Pickler.dump
- Write a pickled representation of obj to the open file.
- [clinic start generated code]*/
+ Write a pickled representation of obj to the open file.
+ [clinic start generated code]*/
- The name of the class and module should be the same as the one
- seen by Python. Check the name defined in the :c:type:`PyModuleDef`
- or :c:type:`PyTypeObject` as appropriate.
@@ -286,13 +291,13 @@ Let's dive in!
Sample::
- /*[clinic input]
- module pickle
- class pickle.Pickler
- [clinic start generated code]*/
+ /*[clinic input]
+ module _pickle
+ class _pickle.Pickler "PicklerObject *" "&Pickler_Type"
+ [clinic start generated code]*/
- /*[clinic input]
- pickle.Pickler.dump
+ /*[clinic input]
+ _pickle.Pickler.dump
obj: 'O'
@@ -309,7 +314,7 @@ Let's dive in!
itself before the first keyword-only argument, indented the
same as the parameter lines.
- (``pickle.Pickler.dump`` has neither, so our sample is unchanged.)
+ (``_pickle.Pickler.dump`` has neither, so our sample is unchanged.)
10. If the existing C function calls :c:func:`PyArg_ParseTuple`
@@ -327,12 +332,12 @@ Let's dive in!
Sample::
/*[clinic input]
- module pickle
- class pickle.Pickler
+ module _pickle
+ class _pickle.Pickler "PicklerObject *" "&Pickler_Type"
[clinic start generated code]*/
/*[clinic input]
- pickle.Pickler.dump
+ _pickle.Pickler.dump
obj: 'O'
/
@@ -354,12 +359,12 @@ Let's dive in!
Sample::
/*[clinic input]
- module pickle
- class pickle.Pickler
+ module _pickle
+ class _pickle.Pickler "PicklerObject *" "&Pickler_Type"
[clinic start generated code]*/
/*[clinic input]
- pickle.Pickler.dump
+ _pickle.Pickler.dump
obj: 'O'
The object to be pickled.
@@ -373,13 +378,13 @@ Let's dive in!
the file in your text editor to see::
/*[clinic input]
- module pickle
- class pickle.Pickler
+ module _pickle
+ class _pickle.Pickler "PicklerObject *" "&Pickler_Type"
[clinic start generated code]*/
/*[clinic end generated code: checksum=da39a3ee5e6b4b0d3255bfef95601890afd80709]*/
/*[clinic input]
- pickle.Pickler.dump
+ _pickle.Pickler.dump
obj: 'O'
The object to be pickled.
@@ -388,12 +393,12 @@ Let's dive in!
Write a pickled representation of obj to the open file.
[clinic start generated code]*/
- PyDoc_STRVAR(pickle_Pickler_dump__doc__,
+ PyDoc_STRVAR(_pickle_Pickler_dump__doc__,
"Write a pickled representation of obj to the open file.\n"
"\n"
...
static PyObject *
- pickle_Pickler_dump_impl(PyObject *self, PyObject *obj)
+ _pickle_Pickler_dump_impl(PicklerObject *self, PyObject *obj)
/*[clinic end generated code: checksum=3bd30745bf206a48f8b576a1da3d90f55a0a4187]*/
Obviously, if Argument Clinic didn't produce any output, it's because
@@ -428,8 +433,8 @@ Let's dive in!
macro defining the appropriate static :c:type:`PyMethodDef` structure for
this builtin::
- #define _PICKLE_PICKLER_DUMP_METHODDEF \
- {"dump", (PyCFunction)_pickle_Pickler_dump, METH_O, _pickle_Pickler_dump__doc__},
+ #define __PICKLE_PICKLER_DUMP_METHODDEF \
+ {"dump", (PyCFunction)__pickle_Pickler_dump, METH_O, __pickle_Pickler_dump__doc__},
This static structure should be *exactly* the same as the existing static
:c:type:`PyMethodDef` structure for this builtin.
@@ -463,13 +468,13 @@ Let's dive in!
Sample::
/*[clinic input]
- module pickle
- class pickle.Pickler
+ module _pickle
+ class _pickle.Pickler "PicklerObject *" "&Pickler_Type"
[clinic start generated code]*/
/*[clinic end generated code: checksum=da39a3ee5e6b4b0d3255bfef95601890afd80709]*/
/*[clinic input]
- pickle.Pickler.dump
+ _pickle.Pickler.dump
obj: 'O'
The object to be pickled.
@@ -478,12 +483,12 @@ Let's dive in!
Write a pickled representation of obj to the open file.
[clinic start generated code]*/
- PyDoc_STRVAR(pickle_Pickler_dump__doc__,
+ PyDoc_STRVAR(__pickle_Pickler_dump__doc__,
"Write a pickled representation of obj to the open file.\n"
"\n"
...
static PyObject *
- pickle_Pickler_dump_impl(PyObject *self, PyObject *obj)
+ _pickle_Pickler_dump_impl(PicklerObject *self, PyObject *obj)
/*[clinic end generated code: checksum=3bd30745bf206a48f8b576a1da3d90f55a0a4187]*/
{
/* Check whether the Pickler was initialized correctly (issue3664).
@@ -515,8 +520,8 @@ Let's dive in!
Sample::
static struct PyMethodDef Pickler_methods[] = {
- _PICKLE_PICKLER_DUMP_METHODDEF
- _PICKLE_PICKLER_CLEAR_MEMO_METHODDEF
+ __PICKLE_PICKLER_DUMP_METHODDEF
+ __PICKLE_PICKLER_CLEAR_MEMO_METHODDEF
{NULL, NULL} /* sentinel */
};
@@ -1106,15 +1111,16 @@ Using a "self converter"
------------------------
Argument Clinic automatically adds a "self" parameter for you
-using a default converter. However, you can override
+using a default converter. It automatically sets the ``type``
+of this parameter to the "pointer to an instance" you specified
+when you declared the type. However, you can override
Argument Clinic's converter and specify one yourself.
Just add your own ``self`` parameter as the first parameter in a
block, and ensure that its converter is an instance of
``self_converter`` or a subclass thereof.
-What's the point? This lets you automatically cast ``self``
-from ``PyObject *`` to a custom type, just like ``object()``
-does with its ``type`` parameter.
+What's the point? This lets you override the type of ``self``,
+or give it a different default name.
How do you specify the custom type you want to cast ``self`` to?
If you only have one or two functions with the same type for ``self``,
@@ -1502,6 +1508,8 @@ preset configurations, as follows:
and ``docstring_prototype``, write the ``impl_definition`` to
``block``, and write everything else to ``file``.
+ The default filename is ``"{dirname}/clinic/{basename}.h"``.
+
``buffer``
Save up all most of the output from Clinic, to be written into
your file near the end. For Python files implementing modules
@@ -1554,7 +1562,7 @@ The ``new`` subcommand works like this::
This creates a new destination with name ``<name>`` and type ``<type>``.
-There are five destination types::
+There are five destination types:
``suppress``
Throws the text away.
@@ -1575,12 +1583,18 @@ There are five destination types::
The template can use three strings internally that will be replaced
by bits of the filename:
- {filename}
- The full filename.
+ {path}
+ The full path to the file, including directory and full filename.
+ {dirname}
+ The name of the directory the file is in.
{basename}
- Everything up to but not including the last '.'.
- {extension}
- The last '.' and everything after it.
+ Just the name of the file, not including the directory.
+ {basename_root}
+ Basename with the extension clipped off
+ (everything up to but not including the last '.').
+ {basename_extension}
+ The last '.' and everything after it. If the basename
+ does not contain a period, this will be the empty string.
If there are no periods in the filename, {basename} and {filename}
are the same, and {extension} is empty. "{basename}{extension}"