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+# Python Bindings Development Guide
+
+The aim of this document is to guide when extending these bindings with additional nDPI API.
+In the following we suppose that we want to add the following API to ndpi python package.
+
+``` c
+int ndpi_des_init(struct ndpi_des_struct *des, double alpha, double beta, float significance);
+```
+
+## Add it to NDPI_APIS Python definition
+
+
+[**NDPI_APIS**][py_ndpi_api] must be updated with the this new API your want to add.
+
+
+## That's it!
+
+Now this API can be called and used on python side
+
+``` python
+from ndpi import, lib, ffi
+
+des = ffi.new("struct ndpi_des_struct *")
+alpha = 0.9
+beta = 0.5
+lib.ndpi_des_init(des, alpha, beta, 0.05)
+```
+
+[py_ndpi_api]: https://github.com/ntop/nDPI/blob/c47d710d8e5281fff2f1f90ff5462c16ac91d50c/python/ndpi/ndpi_build.py#L49
+\ No newline at end of file