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authorBenjamin Peterson <benjamin@python.org>2008-09-27 23:28:43 (GMT)
committerBenjamin Peterson <benjamin@python.org>2008-09-27 23:28:43 (GMT)
commit4008ef0fe3dd2c642f402c9addd513962e361c52 (patch)
tree09c10112f2bb4485cad0d9a5f64ef47b06a0f68c /Doc
parente6896050a339124645b9c55885818b51be5c2ee0 (diff)
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clarify a few things
Diffstat (limited to 'Doc')
-rw-r--r--Doc/howto/cporting.rst13
1 files changed, 6 insertions, 7 deletions
diff --git a/Doc/howto/cporting.rst b/Doc/howto/cporting.rst
index 630c97a..3451f5c 100644
--- a/Doc/howto/cporting.rst
+++ b/Doc/howto/cporting.rst
@@ -45,7 +45,7 @@ Python 3.0's :func:`str` (``PyString_*`` functions in C) type is equivalent to
2.x's :func:`unicode` (``PyUnicode_*``). The old 8-bit string type has become
:func:`bytes`. Python 2.6 and later provide a compatibility header,
:file:`bytesobject.h`, mapping ``PyBytes`` names to ``PyString`` ones. For best
-interpolation with 3.0, :ctype:`PyUnicode` should be used for textual data and
+compatibility with 3.0, :ctype:`PyUnicode` should be used for textual data and
:ctype:`PyBytes` for binary data. It's also important to remember that
:ctype:`PyBytes` and :ctype:`PyUnicode` in 3.0 are not interchangeable like
:ctype:`PyString` and :ctype:`PyString` are in 2.x. The following example shows
@@ -68,6 +68,7 @@ best practices with regards to :ctype:`PyUnicode`, :ctype:`PyString`, and
return result;
}
+ /* just a forward */
static char * do_encode(PyObject *);
/* bytes example */
@@ -94,14 +95,12 @@ long/int Unification
In Python 3.0, there is only one integer type. It is called :func:`int` on the
Python level, but actually corresponds to 2.x's :func:`long` type. In the
C-API, ``PyInt_*`` functions are replaced by their ``PyLong_*`` neighbors. The
-best course of action here is probably aliasing ``PyInt_*`` functions to
-``PyLong_*`` variants or using the abstract ``PyNumber_*`` APIs. ::
+best course of action here is using the ``PyInt_*`` functions aliased to
+``PyLong_*`` found in :file:`intobject.h`. The the abstract ``PyNumber_*`` APIs
+can also be used in some cases. ::
#include "Python.h"
-
- #if PY_MAJOR_VERSION >= 3
- #define PyInt_FromLong PyLong_FromLong
- #endif
+ #include "intobject.h"
static PyObject *
add_ints(PyObject *self, PyObject *args) {