How to build a OpenSTLinux Distribution package image having multiple python versions?

[AbhijithKannan]

I am new to building images using Yocto. I am working with an STM32MPU157F, which comes with OpenSTLinux by default. The default image includes Python 3.12.4, but I also need to have Python 3.11.5 available on the image. My end goal is to have both Python versions installed in a single image and ran a AI application.

[Jean-Christophe_TROTIN]

Hi @AbhijithKannan ,

To have Python 3.11.5 available on the image (while keeping Python 3.12.4), I could suggest two ways:

* Using the OpenSTLinux SDK form the developer package (https://wiki.st.com/stm32mpu/wiki/STM32MPU_Developer_Package) to build Python 3.11.5 from its source code (https://wiki.st.com/stm32mpu/wiki/How_to_cross-compile_with_the_Developer_Package). This way might be interesting to make a quick test.

* Creating a custom layer (https://wiki.st.com/stm32mpu/wiki/How_to_add_a_customer_application) in the scope of the distribution package (https://wiki.st.com/stm32mpu/wiki/STM32MPU_Distribution_Package), adding in this layer a recipe for Python 3.11.5 (it might be copied/pasted/adapted from the recipe for Python 3.12.4), and adding this new layer to the built image (for example through the local.conf file). This way might be interesting to create a “new” distribution that includes both Python versions.

Hope this information helps.

Regards,

JC.