updated the python bindings, added code for easier File I/O, and the

* python/generator.py python/libxml.c python/libxml.py
  python/libxml2-python-api.xml python/libxml2class.txt
  python/libxml_wrap.h python/types.c: updated the python
  bindings, added code for easier File I/O, and the ability to
  define a resolver from Python fixing bug #91635
* python/tests/Makefile.am python/tests/inbuf.py
  python/tests/outbuf.py python/tests/pushSAXhtml.py
  python/tests/resolver.py python/tests/serialize.py: updated
  and augmented the set of Python tests.
Daniel

python/libxml.py

@@ -27,6 +27,74 @@ class xpathError:
     def __str__(self):
         return self.msg
 
+class ioWrapper:
+    def __init__(self, _obj):
+        self.__io = _obj
+        self._o = None
+
+    def io_close(self):
+        if self.__io == None:
+	    return(-1)
+	self.__io.close()
+	self.__io = None
+	return(0)
+
+    def io_flush(self):
+        if self.__io == None:
+	    return(-1)
+	self.__io.flush()
+	return(0)
+
+    def io_read(self, len = -1):
+        if self.__io == None:
+	    return(-1)
+        if len < 0:
+	    return(self.__io.read())
+	return(self.__io.read(len))
+
+    def io_write(self, str, len = -1):
+        if self.__io == None:
+	    return(-1)
+        if len < 0:
+	    return(self.__io.write(str))
+	return(self.__io.write(str, len))
+
+class ioReadWrapper(ioWrapper):
+    def __init__(self, _obj, enc = ""):
+        ioWrapper.__init__(self, _obj)
+        self._o = libxml2mod.xmlCreateInputBuffer(self, enc)
+
+    def __del__(self):
+        print "__del__"
+        self.io_close()
+        if self._o != None:
+            libxml2mod.xmlFreeParserInputBuffer(self._o)
+        self._o = None
+
+    def close(self):
+        self.io_close()
+        if self._o != None:
+            libxml2mod.xmlFreeParserInputBuffer(self._o)
+        self._o = None
+
+class ioWriteWrapper(ioWrapper):
+    def __init__(self, _obj, enc = ""):
+        ioWrapper.__init__(self, _obj)
+        self._o = libxml2mod.xmlCreateOutputBuffer(self, enc)
+
+    def __del__(self):
+        print "__del__"
+        self.io_close()
+        if self._o != None:
+            libxml2mod.xmlOutputBufferClose(self._o)
+        self._o = None
+
+    def close(self):
+        self.io_close()
+        if self._o != None:
+            libxml2mod.xmlOutputBufferClose(self._o)
+        self._o = None
+
 #
 # Example of a class to handle SAX events
 #