New issue 816: mpi4py is not imported properly in parallel_analysis_interface.py https://bitbucket.org/yt_analysis/yt/issue/816/mpi4py-is-not-imported-proper... Kacper Kowalik: Revision fec39112bec causes: ``` #!text $ python -c 'import yt.utilities.parallel_tools.parallel_analysis_interface' Traceback (most recent call last): File "<string>", line 1, in <module> File "yt/__init__.py", line 116, in <module> from yt.data_objects.api import \ File "yt/data_objects/api.py", line 16, in <module> from grid_patch import \ File "yt/data_objects/grid_patch.py", line 25, in <module> from yt.data_objects.data_containers import \ File "yt/data_objects/data_containers.py", line 32, in <module> from yt.utilities.parallel_tools.parallel_analysis_interface import \ File "yt/utilities/parallel_tools/parallel_analysis_interface.py", line 1015, in <module> communication_system = CommunicationSystem() File "yt/utilities/parallel_tools/parallel_analysis_interface.py", line 587, in __init__ self.communicators.append(Communicator(MPI.COMM_WORLD)) NameError: global name 'MPI' is not defined ``` Responsible: xarthisius