nRF52840DK build error: src/jslex.o make: *** [espruino_2v08.220_nrf52840.elf] Error 1

Sun 2021.09.26

While looking over the provision.sh file

L140
      echo Installing python and pip
      sudo DEBIAN_FRONTEND=noninteractive apt-get install -qq -y python python-pip

What version of Python need be installed?

I have a user installed version 3.7 that runs from Windows:

Note the version date(s) that didn't seemed to have gotten updated by their release team

C:\WINDOWS\system32>python
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 19:29:22) [MSC v.1916 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>

VSCode somhow loads a version 2.7 that isn't (intentionally) installed on this PC - Maybe inside WSL?

rgc@DESKTOP-R7T0VUC:/mnt/c/Users/robin/Espruino$ python
Python 2.7.12 (default, Aug 22 2019, 16:36:40) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

Could this version be part of the issue?
Could the dynamic loading of Python during the build have some sort of delay that blocks the scripts from executing timely?