Python WAMR API binding: Add malloc/free and register_native (#1989)

language-bindings/python/wamr-api/README.md

@@ -1,16 +1,8 @@
 # WARM API
 
-## Examples
+## Setup
 
-Copy in `language-bindings/python/wamr/libs` the library `libiwasm` generated from `product-mini/platforms`.
-
-There is a [simple example](./samples/main.py) to show how to use bindings.
-
-```
-python samples/main.py
-```
-
-## Update WAMR API bindings
+### Pre-requisites
 
 Install requirements,
 
@@ -18,8 +10,20 @@ Install requirements,
 pip install -r requirements.txt
 ```
 
-Run the following command,
+### Build native lib and update bindings
+
+The following command builds the iwasm library and generates the Python bindings,
 
 ```sh
-ctypesgen ../../../../core/iwasm/include/wasm_export.h -l ../libs/libiwasm.so -o iwasm.py
+bash language-bindings/python/utils/create_lib.sh
+```
+
+This will build and copy libiwasm into the package.
+
+## Examples
+
+There is a [simple example](./samples/main.py) to show how to use bindings.
+
+```
+python samples/main.py
 ```