Patched to work with newer Python 3

Makefile

 all:
 	tar xf libxml2-python3-2.9.5.tar.gz
+	patch -Np1 -d libxml2-python3-2.9.5 < libxml2-python3-2.9.5-fix_python_type_checks.patch
 #	cd libxml2-python3-2.9.5 && python3 setup.py build
 	cd libxml2-python3-2.9.5 && python3 setup.py install --optimize=1
 	rm -rf libxml2-python3-2.9.5

libxml2-python3-2.9.5-fix_python_type_checks.patch

+diff -uNr libxml2-python3-2.9.5/libxml.c libxml2-python3-2.9.5-fix_python_type_checks/libxml.c
+--- libxml2-python3-2.9.5/libxml.c	2018-05-16 04:19:18.000000000 +0930
++++ libxml2-python3-2.9.5-fix_python_type_checks/libxml.c	2022-10-25 08:51:32.147262594 +1030
+@@ -294,7 +294,7 @@
+ 	lenread = PyBytes_Size(ret);
+ 	data = PyBytes_AsString(ret);
+ #ifdef PyUnicode_Check
+-    } else if PyUnicode_Check (ret) {
++    } else if (PyUnicode_Check(ret)) {
+ #if PY_VERSION_HEX >= 0x03030000
+         Py_ssize_t size;
+ 	const char *tmp;
+@@ -359,7 +359,7 @@
+ 	lenread = PyBytes_Size(ret);
+ 	data = PyBytes_AsString(ret);
+ #ifdef PyUnicode_Check
+-    } else if PyUnicode_Check (ret) {
++    } else if (PyUnicode_Check(ret)) {
+ #if PY_VERSION_HEX >= 0x03030000
+         Py_ssize_t size;
+ 	const char *tmp;
+diff -uNr libxml2-python3-2.9.5/types.c libxml2-python3-2.9.5-fix_python_type_checks/types.c
+--- libxml2-python3-2.9.5/types.c	2018-05-16 04:19:18.000000000 +0930
++++ libxml2-python3-2.9.5-fix_python_type_checks/types.c	2022-10-25 08:53:13.458560697 +1030
+@@ -602,16 +602,16 @@
+     if (obj == NULL) {
+         return (NULL);
+     }
+-    if PyFloat_Check (obj) {
++    if (PyFloat_Check(obj)) {
+         ret = xmlXPathNewFloat((double) PyFloat_AS_DOUBLE(obj));
+-    } else if PyLong_Check(obj) {
++    } else if (PyLong_Check(obj)) {
+ #ifdef PyLong_AS_LONG
+         ret = xmlXPathNewFloat((double) PyLong_AS_LONG(obj));
+ #else
+         ret = xmlXPathNewFloat((double) PyInt_AS_LONG(obj));
+ #endif
+ #ifdef PyBool_Check
+-    } else if PyBool_Check (obj) {
++    } else if (PyBool_Check(obj)) {
+ 
+         if (obj == Py_True) {
+           ret = xmlXPathNewBoolean(1);
+@@ -620,14 +620,14 @@
+           ret = xmlXPathNewBoolean(0);
+         }
+ #endif
+-    } else if PyBytes_Check (obj) {
++    } else if (PyBytes_Check(obj)) {
+         xmlChar *str;
+ 
+         str = xmlStrndup((const xmlChar *) PyBytes_AS_STRING(obj),
+                          PyBytes_GET_SIZE(obj));
+         ret = xmlXPathWrapString(str);
+ #ifdef PyUnicode_Check
+-    } else if PyUnicode_Check (obj) {
++    } else if (PyUnicode_Check(obj)) {
+ #if PY_VERSION_HEX >= 0x03030000
+         xmlChar *str;
+ 	const char *tmp;
+@@ -650,7 +650,7 @@
+ 	ret = xmlXPathWrapString(str);
+ #endif
+ #endif
+-    } else if PyList_Check (obj) {
++    } else if (PyList_Check(obj)) {
+         int i;
+         PyObject *node;
+         xmlNodePtr cur;