[gentoo-science] [sage-on-gentoo] sage-clib-5.7 fails to build

[v_2e]

  Hello!
  I tried to upgrade to Sage-5.7, but could not do it because of the
following error:

>>> Compiling source
>>> in /var/tmp/portage/sci-mathematics/sage-clib-5.7/work/sage-5.7/c_lib ...
scons -j2
/usr/bin/scons: no supported Python implementation variant found!


  Regards,
    Vladimir

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