needed for python 3.6
An automated check of this bug failed - repoman reported dependency errors (37 lines truncated): > dependency.bad dev-python/wcsaxes/wcsaxes-0.9-r1.ebuild: DEPEND: amd64(default/linux/amd64/17.0) ['dev-python/astropy[python_targets_python2_7(-)?,python_targets_python3_4(-)?,python_targets_python3_5(-)?,python_targets_python3_6(-)?,-python_single_target_python2_7(-),-python_single_target_python3_4(-),-python_single_target_python3_5(-),-python_single_target_python3_6(-)]', 'dev-python/astropy-helpers[python_targets_python2_7(-)?,python_targets_python3_4(-)?,python_targets_python3_5(-)?,python_targets_python3_6(-)?,-python_single_target_python2_7(-),-python_single_target_python3_4(-),-python_single_target_python3_5(-),-python_single_target_python3_6(-)]'] > dependency.bad dev-python/wcsaxes/wcsaxes-0.9-r1.ebuild: RDEPEND: amd64(default/linux/amd64/17.0) ['dev-python/astropy[python_targets_python2_7(-)?,python_targets_python3_4(-)?,python_targets_python3_5(-)?,python_targets_python3_6(-)?,-python_single_target_python2_7(-),-python_single_target_python3_4(-),-python_single_target_python3_5(-),-python_single_target_python3_6(-)]'] > dependency.bad dev-python/wcsaxes/wcsaxes-0.9-r1.ebuild: DEPEND: amd64(default/linux/amd64/17.0/desktop) ['dev-python/astropy[python_targets_python2_7(-)?,python_targets_python3_4(-)?,python_targets_python3_5(-)?,python_targets_python3_6(-)?,-python_single_target_python2_7(-),-python_single_target_python3_4(-),-python_single_target_python3_5(-),-python_single_target_python3_6(-)]', 'dev-python/astropy-helpers[python_targets_python2_7(-)?,python_targets_python3_4(-)?,python_targets_python3_5(-)?,python_targets_python3_6(-)?,-python_single_target_python2_7(-),-python_single_target_python3_4(-),-python_single_target_python3_5(-),-python_single_target_python3_6(-)]']
*** This bug has been marked as a duplicate of bug 599846 ***