Precompiling failed on raspberry pi

[KronosTheLate]

[ Info: Precompiling PythonCall [6099a3de-0909-46bc-b1f4-468b9a2dfc0d]
    CondaPkg Found dependencies: /home/pi/.julia/packages/PythonCall/B5irB/CondaPkg.toml
ERROR: InitError: MicroMamba does not support your platform
during initialization of module C

I get this error during precompilation. I can do using PythonCall no problem, but get this error when trying to import something:

julia> pyimport("numpy")
ERROR: UndefRefError: access to undefined reference
Stacktrace:
 [1] PyUnicode_DecodeUTF8 at /home/pi/.julia/packages/PythonCall/B5irB/src/cpython/pointers.jl:290 [inlined]
 [2] pystr_fromUTF8(::Ptr{UInt8}, ::Int32) at /home/pi/.julia/packages/PythonCall/B5irB/src/concrete/str.jl:1
 [3] pystr_fromUTF8 at /home/pi/.julia/packages/PythonCall/B5irB/src/concrete/str.jl:2 [inlined]
 [4] pystr at /home/pi/.julia/packages/PythonCall/B5irB/src/concrete/str.jl:10 [inlined]
 [5] Py at /home/pi/.julia/packages/PythonCall/B5irB/src/Py.jl:138 [inlined]
 [6] macro expansion at /home/pi/.julia/packages/PythonCall/B5irB/src/Py.jl:128 [inlined]
 [7] pyimport(::String) at /home/pi/.julia/packages/PythonCall/B5irB/src/concrete/import.jl:11
 [8] top-level scope at REPL[15]:1

I get that this package is probably not made with the RPi in mind. But would it be possible to support it?

Version info:

julia> versioninfo()
Julia Version 1.5.3
Platform Info:
  OS: Linux (arm-linux-gnueabihf)
  CPU: unknown
  WORD_SIZE: 32
  LIBM: libopenlibm
  LLVM: libLLVM-9.0.1 (ORCJIT, cortex-a72)
Environment:
  JULIA_EDITOR = code
  JULIA_NUM_THREADS = 
  JULIA_CONDAPKG_BACKEND = Null

[cjdoris]

To use PythonCall on a platform not supported by MicroMamba, you'll need to install Python yourself somehow (I don't know anything about RPi) and configure PythonCall to use that installation. See here: https://cjdoris.github.io/PythonCall.jl/stable/pythoncall/#pythoncall-config

[KronosTheLate]

I never saw this comment - my bad xD
This did indeed fix the problem! Is is possible to include this information in the precompilation error? Something like
"ERROR: InitError: MicroMamba does not support your platform during initialization of module C. If you have a working python installation, you can set ENV["JULIA_CONDAPKG_BACKEND"] = "Null" to use that installation, which should resolve this error."

[github-actions]

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[KronosTheLate]

It would be helpfull to mention this possible fix in the precompilation error.