[ebuild R ] dev-python/pandas-0.24.2::gentoo USE="X (-doc) -full-support -minimal -test" PYTHON_TARGETS="python3_6 python3_7" 0 KiB If I compile it with default settings, MAKEOPTS="-j16 -l16" I start getting these weird assertion errors: ============================================ ERRORS ============================================ __________________ ERROR collecting spyder_kernels/utils/tests/test_nsview.py __________________ spyder_kernels/utils/tests/test_nsview.py:18: in <module> import pandas as pd /usr/lib64/python3.6/site-packages/pandas/__init__.py:26: in <module> from pandas._libs import (hashtable as _hashtable, /usr/lib64/python3.6/site-packages/pandas/_libs/__init__.py:4: in <module> from .tslibs import ( /usr/lib64/python3.6/site-packages/pandas/_libs/tslibs/__init__.py:4: in <module> from .conversion import normalize_date, localize_pydatetime, tz_convert_single pandas/_libs/tslibs/conversion.pyx:234: in init pandas._libs.tslibs.conversion ??? E AttributeError: type object 'pandas._libs.tslibs.conversion._TSObject' has no attribute '__reduce_cython__' !!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 errors during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!! On different packages that import from pandas. It is weirdly fixed by emerging pandas with MAKEOPTS="-j1". Maybe the installation phase can't keep up with higher MAKEOPTS? Fast-fix: Just export MAKEOPTS="-j1" in the ebuild.
*** This bug has been marked as a duplicate of bug 710030 ***
