cleanup added class for parser context, added first cut for push mode

* python/Makefile.am python/types.c: cleanup
* python/libxml.c python/libxml.py python/libxml_wrap.h
  python/generator.py python/libxml2-python-api.xml
  python/libxml2class.txt: added class for parser context, added
  first cut for push mode support. Added a framework to generate
  accessors functions.
* python/tests/Makefile.am python/tests/push.py: added a push
  test
Daniel

python/tests/Makefile.am

@@ -4,6 +4,7 @@ TESTS=		\
     tst.py	\
     tstxpath.py	\
     xpathext.py	\
+    push.py	\
     error.py	\
     xpath.py
 
@@ -20,6 +21,9 @@ else
 tests:
 endif
 
+clean:
+	rm -f *.pyc core
+
 install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(EXAMPLE_DIR)
 	-(for test in $(TESTS) $(XMLS); \

python/tests/push.py

@@ -0,0 +1,25 @@
+#!/usr/bin/python -u
+import sys
+import libxml2
+
+ctxt = libxml2.createPushParser(None, "<foo", 4, "test.xml")
+ctxt.parseChunk("/>", 2, 1)
+doc = ctxt.doc()
+ctxt=None
+if doc.name != "test.xml":
+    print "document name error"
+    sys.exit(1)
+root = doc.children
+if root.name != "foo":
+    print "root element name error"
+    sys.exit(1)
+doc.freeDoc()
+i = 10000
+while i > 0:
+    ctxt = libxml2.createPushParser(None, "<foo", 4, "test.xml")
+    ctxt.parseChunk("/>", 2, 1)
+    doc = ctxt.doc()
+    doc.freeDoc()
+    i = i -1
+ctxt=None
+print "OK"