bootstrap.sh does not detect Python 3.8 on macOS, neither the one from macOS itself nor from MacPorts

[fdik]

After running: $ ./bootstrap.sh --prefix=$HOME --with-python=/opt/local/bin/python3.8 still Python 2.7 of macOS is detected. Tried with and without path. Expected would be that it takes the mentioned Python version from this binary. A workaround is to use $ sudo port select python python38 This makes Python 3.8 the default reachable with just python, and ./bootstrap.sh works. But this is most likely not what the author of this script intended.

[fdik]

debug.txt

[DMaroo]

What output do you get when you run this manually?

/opt/local/Library/Frameworks/Python.framework/Versions/3.8/bin/python -c "from sys import *; print('version=%d.%d\nplatform=%s\nprefix=%s\nexec_prefix=%s\nexecutable=%s' % (version_info[0],version_info[1],platform,prefix,exec_prefix,executable))" 2>&1