Test python3 in travis about python-casacore

[gijzelaerr]

this is not the case yet, we need to first make a release.

[brentjens]

Before a casacore release is made, it would help to ensure that no python2 boost libraries are linked with the casa_python3 lib when also building the casa_python lib. I found that if I do not build the casa_python lib, the cas_python3 lib is only linked with boost_python3, so then all is fine.

Current situation:
-DBUILD_PYTHON=YES -DBUILD_PYTHON3=YES : boost_python AND boost_python3 linked to casa_python3 -> trouble down the road

-DBUILD_PYTHON=NO -DBUILD_PYTHON3=YES : only boost_python3 linked to casa_python3 -> All is fine when used with Python3.

[tammojan]

@gijzelaerr is currently working on better python3 support, probably fixing this as well. To be continued later today.

[brentjens]

Great!

[gijzelaerr]

@brentjens can you verify this PR solves your problem?

casacore/casacore#280

[brentjens]

On 18-12-15 12:53, Gijs Molenaar wrote:

@brentjens https://github.com/brentjens can you verify this PR solves your problem?

casacore/casacore#280 casacore/casacore#280

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#32 (comment).

brentjens@brentjenslaptop:~/abs/casacore.git/build (git python3-fix) - - - - - - - - - - - - - - - - - - - - - - - - -
[13:23:09]
$ cmake -DUSE_FFTW3=ON -DDATA_DIR=$HOME/Software/casa-measures/data -DUSE_OPENMP=ON -DUSE_HDF5=ON -DBUILD_PYTHON=ON
-DBUILD_PYTHON3=ON -DUSE_THREADS=ON -DBoost_NO_BOOST_CMAKE=True ../

brentjens@brentjenslaptop:~/abs/casacore.git/build (git python3-fix) - - - - - - - - - - - - - - - - - - - - - - - - -
[13:45:48]
$ ldd python3/libcasa_python3.so|grep boost
libboost_python3.so.1.59.0 => /usr/lib/libboost_python3.so.1.59.0 (0x00007f02d3484000)

Looks good....

brentjens@brentjenslaptop:~/abs/casacore.git/build (git python3-fix) - - - - - - - - - - - - - - - - - - - - - - - - -
[13:46:00]
$ ldd python/libcasa_python.so|grep boost
libboost_python.so.1.59.0 => /usr/lib/libboost_python.so.1.59.0 (0x00007ff7a77ff000)

Looks good too...

$ ipython
Python 3.5.1 (default, Dec 7 2015, 12:58:09)
Type "copyright", "credits" or "license" for more information.

IPython 4.0.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.

In [1]: import casacore.tables as tab

In [2]:

Everything works! Thanks.

• Michiel

[gijzelaerr]

we now test for python3.4 on ubuntu 52a45c1