32-bit Python interpreter on a 64-bit system (ARM)

[Wicki Gabriel (wicg)]

Hello!

Due to dynamic linkage to a library that is only provided for ARMv6 
architecture (32-bit) my Python application that is developed for a 64-bit ARM 
architecture refuses to work (I load the library with ctypes).  According to 
the internet this could be solved by running that script with a 32-bit 
interpreter which - of course - is readily available in Guix.
How can I declare on the package (or on the system level if necessary) that 
this specific script needs the interpreter of a different architecture than the 
system/package is built for?

To give you an example, the end-product will be a whole system configuration 
with packages and services and whatnot, that will be generated throught guix 
system image my-img.scm --system=aarch64-linux​ but this one package must make 
use of the armhf-linux Python ELF.

Thanks for any ideas and input!