In my humble opinion moving to python3 is a good idea. Debian has also python3 as default since stretch. The bigger question is what will break by switching to python3.
Hannu Nyman: > I upgraded my buildhost to new Ubuntu 17.10 and noticed that Ubuntu has > dropped python 2.7 from the packages installed by default, and only > python3 is installed. There is no symlink for "python", so LEDE > prerequisite check fails. > > LEDE prerequisite check looks for Python2: > > https://github.com/lede-project/source/blob/master/include/prereq-build.mk#L141 > > > $(eval $(call SetupHostCommand,python,Please install Python 2.x, \ > python2.7 -V 2>&1 | grep Python, \ > python2 -V 2>&1 | grep Python, \ > python -V 2>&1 | grep Python)) > > Ubuntu 17.10 does not provide a symlink for plain "python", likely > because they want to keep users aware that python3 is the version in > use. So the prerequisite check fails. That will hurt users with build > systems that are python3-only by default. > > Installing the old python 2.7 naturally helped, but I started to wonder > if there is a really good reason why LEDE buildhost does not use python3 > and python2 is required? > > rules.mk seems to define python as PYTHON:=python > > I wonder if that could be enhanced to use python3 if available. > > Of the build tools, "scons" seems to use/check for python2 (in > tools/scons/files/pywrap.sh ), but based on internet resources, scons > itself works ok also with python3. > > I have not tested how well the build would go with python symlinked to > python3, but just wanted raise the issue that some popular Linux distros > are moving towards python3 now. > > Python2 has EOL set for 2020, so there is still time to move on, but we > might be ahead of the deadline. > > > > _______________________________________________ > Lede-dev mailing list > Lede-dev@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/lede-dev
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