Remove SwigPyObject_print and SwigPyObject_str, and make the generated wrapper use the default python implementations, which will fall back to repr (for -builtin option).

Advantages:
- it avoids the swig user having to jump through hoops to get print to
  work as expected when redefining repr/str slots.
- typing the name of a variable on the python prompt now prints the
  result of a (possibly redefined) repr, without the swig user having to
do any extra work.
- when redefining repr, the swig user doesn't necessarily have to
  redefine str as it will call the redefined repr
- the behaviour is exactly the same as without the -builtin option while
  requiring no extra work by the user (aside from adding the
%feature("python:slot...) statements of course)
- the patch simplifies pyrun.swg a tiny bit.

Disadvantage:
- default str() will give different (but clearer?) output on swigged
  classes compared to unpatched swig

SF Bug #326

CHANGES.current

@@ -4,6 +4,25 @@ See the RELEASENOTES file for a summary of changes in each release.
 
 Version 2.0.11 (in progress)
 ============================
+
+2013-08-07: wsfulton
+            [Python] SF Patch #326 from Kris Thielemans - Remove SwigPyObject_print and SwigPyObject_str and
+            make the generated wrapper use the default python implementations, which will fall back to repr
+            (for -builtin option).
+
+            Advantages:
+            - it avoids the swig user having to jump through hoops to get print to work as expected when
+              redefining repr/str slots.
+            - typing the name of a variable on the python prompt now prints the result of a (possibly redefined)
+              repr, without the swig user having to do any extra work.
+            - when redefining repr, the swig user doesn't necessarily have to redefine str as it will call the
+              redefined repr
+            - the behaviour is exactly the same as without the -builtin option while requiring no extra work
+              by the user (aside from adding the %feature("python:slot...) statements of course)
+
+            Disadvantage:
+            - default str() will give different (but clearer?) output on swigged classes
+
 2013-07-30: wsfulton
             [Python, Ruby] Fix #64 #65: Missing code in std::multimap wrappers. Previously an instantiation
             of a std::map was erroneously required in addition to an instantiation of std::multimap with the

Lib/python/pyname_compat.i

@@ -67,10 +67,8 @@
 #define PySwigObject_next SwigPyObject_next
 #define PySwigObject_oct SwigPyObject_oct
 #define PySwigObject_own SwigPyObject_own
-#define PySwigObject_print SwigPyObject_print
 #define PySwigObject_repr SwigPyObject_repr
 #define PySwigObject_richcompare SwigPyObject_richcompare
-#define PySwigObject_str SwigPyObject_str
 #define PySwigObject_type SwigPyObject_type
 #define PySwigPacked SwigPyPacked
 #define PySwigPacked_Check SwigPyPacked_Check

Lib/python/pyrun.swg

@@ -448,34 +448,6 @@ SwigPyObject_repr(SwigPyObject *v, PyObject *args)
   return repr;  
 }
 
-SWIGRUNTIME int
-SwigPyObject_print(SwigPyObject *v, FILE *fp, int SWIGUNUSEDPARM(flags))
-{
-  char *str;
-#ifdef METH_NOARGS
-  PyObject *repr = SwigPyObject_repr(v);
-#else
-  PyObject *repr = SwigPyObject_repr(v, NULL);
-#endif
-  if (repr) {
-    str = SWIG_Python_str_AsChar(repr); 
-    fputs(str, fp);
-    SWIG_Python_str_DelForPy3(str);
-    Py_DECREF(repr);
-    return 0; 
-  } else {
-    return 1; 
-  }
-}
-
-SWIGRUNTIME PyObject *
-SwigPyObject_str(SwigPyObject *v)
-{
-  char result[SWIG_BUFFER_SIZE];
-  return SWIG_PackVoidPtr(result, v->ptr, v->ty->name, sizeof(result)) ?
-    SWIG_Python_str_FromChar(result) : 0;
-}
-
 SWIGRUNTIME int
 SwigPyObject_compare(SwigPyObject *v, SwigPyObject *w)
 {
@@ -761,7 +733,7 @@ SwigPyObject_TypeOnce(void) {
       sizeof(SwigPyObject),                 /* tp_basicsize */
       0,                                    /* tp_itemsize */
       (destructor)SwigPyObject_dealloc,     /* tp_dealloc */
-      (printfunc)SwigPyObject_print,        /* tp_print */
+      0,				    /* tp_print */
 #if PY_VERSION_HEX < 0x02020000
       (getattrfunc)SwigPyObject_getattr,    /* tp_getattr */
 #else
@@ -779,7 +751,7 @@ SwigPyObject_TypeOnce(void) {
       0,                                    /* tp_as_mapping */
       (hashfunc)0,                          /* tp_hash */
       (ternaryfunc)0,                       /* tp_call */
-      (reprfunc)SwigPyObject_str,           /* tp_str */
+      0,				    /* tp_str */
       PyObject_GenericGetAttr,              /* tp_getattro */
       0,                                    /* tp_setattro */
       0,                                    /* tp_as_buffer */