Hello,

Short version: to use the official tools to configure Mbed TLS, or to run the unit tests, you need Python. If we start requiring Python 3.5, is this going to be a problem?

Detailed version:

Mbed TLS includes four Python scripts that are of interest to users, with a fifth one in preparation:

* scripts/config.py : compile-time configuration (unless you prefer to edit config.h directly). * scripts/generate_psa_constants.py : to build programs/psa/psa_constant_names (we have a pending task to commit the result instead of requiring it during the build). * tests/scripts/generate_test_code.py : necessary to build the unit tests. * tests/scripts/mbedtls_test.py : does anyone use this? It's for testing on platforms with Greentea, but some of the automation is missing. * upcoming: a script to generate glue code for accelerator and secure element drivers. We'll also provide a manual way, but it won't be as convenient.

This is a question to everyone who's building Mbed TLS and using some of these scripts: is it ok if they require Python 3.5?

Currently: * scripts/config.py requires Python 3.5. * scripts/generate_psa_constants.py requires Python 3.3. * tests/scripts/generate_test_code.py still works with Python 2.7. * tests/scripts/mbedtls_test.py still works with Python 2.7. * the driver glue code generation script will require Python 3.5, or Python 3.4 + typing.

Is there any demand for versions of Python before 3.5?