Update to Python3.10

Makefile

@@ -1,6 +1,6 @@
 # Declaration of variables
 CC = gcc
-CC_FLAGS = -shared -fPIC -I/usr/include/python2.7 \
+CC_FLAGS = -shared -fPIC -I/usr/include/python3.10 \
 	-Wall -Wextra -Wno-unused-parameter -O2 -g
 
 # File names
@@ -15,7 +15,7 @@ all: $(OBJECTS)
 	$(CC) $(CC_FLAGS) $< -o $@
 
 run: $(OBJECTS)
-	python -c "import fib; print fib.fib(5)"
+	python -c "import fib; print(fib.fib(5))"
 	python -c "import hello; hello.greet('Foobar')"
 
 # To remove generated files

Readme.md

@@ -1,12 +1,12 @@
 Python/C API quick start
 =========================
 
-A quick example of Python 2.7 modules implemented in C using the Python/C API.
+A quick example of Python 3.10 modules implemented in C using the Python/C API.
 
 ```
 make all
 python -c "import hello; hello.greet('World')"
-python -c "import fib; print fib.fib(5)"
+python -c "import fib; print(fib.fib(5))"
 make clean
 ```
 

fibmodule.c

@@ -31,9 +31,21 @@ static PyMethodDef FibMethods[] = {
     {NULL, NULL, 0, NULL}  /* Sentinel */
 };
 
+/* Create PyModuleDef structure */
+static struct PyModuleDef fibStruct = {
+    PyModuleDef_HEAD_INIT,
+    "fib",
+    "",
+    -1,
+    FibMethods,
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
 /* Module initialization */
-PyMODINIT_FUNC
-initfib(void)
+PyObject *PyInit_fib(void)
 {
-    (void) Py_InitModule("fib", FibMethods);
+    return PyModule_Create(&fibStruct);
 }

hellomodule.c

@@ -23,9 +23,22 @@ static PyMethodDef HelloMethods[] = {
     {NULL, NULL, 0, NULL}  /* Sentinel */
 };
 
+/* Create PyModuleDef stucture */
+static struct PyModuleDef helloStruct = {
+    PyModuleDef_HEAD_INIT,
+    "hello",
+    "",
+    -1,
+    HelloMethods,
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
+
 /* Module initialization */
-PyMODINIT_FUNC
-inithello(void)
+PyObject *PyInit_hello(void)
 {
-    (void) Py_InitModule("hello", HelloMethods);
+    return PyModule_Create(&helloStruct);
 }