Add 'bool' format character to PyArg_ParseTuple*

Python/getargs.c

 
 /* New getargs implementation */
 
 #include "Python.h"
 
 #include <ctype.h>
 
 
 #ifdef __cplusplus
 extern "C" {
@@ skipping 793 matching lines @@
 
         if (PyUnicode_READY(arg))
             RETURN_ERR_OCCURRED;
 
         if (PyUnicode_GET_LENGTH(arg) != 1)
             return converterr("a unicode character", arg, msgbuf, bufsize);
 
         kind = PyUnicode_KIND(arg);
         data = PyUnicode_DATA(arg);
         *p = PyUnicode_READ(kind, data, 0);
+        break;
+    }
+
+    case 'p': {/* boolean *p*redicate */
+        int *p = va_arg(*p_va, int *);
+        int val = PyObject_IsTrue(arg);
+        if (val > 0)
+            *p = 1;
+        else if (val == 0)
+            *p = 0;
+        else
+            RETURN_ERR_OCCURRED;
         break;
     }
 
     /* XXX WAAAAH!  's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all
        need to be cleaned up! */
 
     case 'y': {/* any buffer-like object, but not PyUnicode */
         void **p = (void **)va_arg(*p_va, char **);
         char *buf;
         Py_ssize_t count;
@@ skipping 972 matching lines @@
     if (PyDict_Size(kw) == 0)
         return 1;
 
     PyErr_Format(PyExc_TypeError, "%s does not take keyword arguments",
                     funcname);
     return 0;
 }
 #ifdef __cplusplus
 };
 #endif