if a port needs 2.x then set MODPY_VERSION=${MODPY_DEFAULT_VERSION_2}.
This commit doesn't change any versions currently used; it may be that
some ports have MODPY_DEFAULT_VERSION_2 but don't require it, those
should be cleaned up in the course of updating ports where possible.
Python module ports providing py3-* packages should still use
FLAVOR=python3 so that we don't have a mixture of dependencies some
using ${MODPY_FLAVOR} and others not.
MyHDL is an open source Python package that lets you go from Python to
silicon. With MyHDL, you can use Python as a hardware description and
verification language. Furthermore, you can convert MyHDL code, that was
developed towards implementation, to Verilog and VHDL automatically, and
take it to a silicon implementation from there.
ok landry@
