Compilation on ubuntu20.04 needs a change in build system

[bennahugo]

With the death of python2.7 cmake has removed explicit detection support for it by the looks of it
The following patch is needed to make the build system work for LOFARBeam tag v4.1.1

# fix build system
sed -i '83s/.*/find_package (Boost REQUIRED COMPONENTS python numpy)/' CMakeLists.txt
sed -i '85s/.*/message(STATUS "Boost python library: \${Boost_PYTHON_LIBRARY}")/' CMakeLists.txt

[bennahugo]

I'm guessing we can remove support for python2.7 altogether @tammojan? If so I can make a quick fix

[tammojan]

In fact LOFARBeam was replaced by EveryBeam, which has python bindings as well. Sorry, we should have put a note in the readme here..

If you have a need for LOFARBeam, feel free to remove python2.7 support and I'll merge. But if you can, please have a look at EveryBeam: https://git.astron.nl/RD/EveryBeam

[bennahugo]

Thanks @tammojan. I'm busy porting ddfacet and killms over to python3.8 for the next series of LTS support. At this point I'm not looking to make major changes to the codebase, but everybeam is something I would like to put in in the longrun. I will make the changes to the build system and ping when done

[bennahugo]

See #26