El problema se experimentó en Ubuntu WSL.

Traceback (most recent call last):
File "/home/jtenner/emsdk/upstream/emscripten/emcc.py", line 42, in
import emscripten
File "/home/jtenner/emsdk/upstream/emscripten/emscripten.py", line 25, in
from tools import shared
File "/home/jtenner/emsdk/upstream/emscripten/tools/shared.py", line 8, in
from distutils.spawn import find_executable
ModuleNotFoundError: No module named 'distutils.spawn'


solución :sudo apt-get install python3-distutils