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https://issues.apache.org/jira/browse/BEAM-2964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steven Normore updated BEAM-2964:
---------------------------------
Summary: Latest six (1.11.0) produces "metaclass conflict: the metaclass of
a derived class must be a (non-strict) subclass of the metaclasses of all its
bases" (was: 2.1.0 with latest six (1.11.0) produces "metaclass conflict: the
metaclass of a derived class must be a (non-strict) subclass of the metaclasses
of all its bases")
> Latest six (1.11.0) produces "metaclass conflict: the metaclass of a derived
> class must be a (non-strict) subclass of the metaclasses of all its bases"
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: BEAM-2964
> URL: https://issues.apache.org/jira/browse/BEAM-2964
> Project: Beam
> Issue Type: Bug
> Components: sdk-py
> Affects Versions: 2.1.0
> Environment: Python 2.7 in a virtualenv on MacOS
> Reporter: Steven Normore
> Assignee: Ahmet Altay
>
> $ virtualenv venv
> [...]
> $ source venv/bin/activate
> [...]
> $ pip install apache-beam[gcp]==2.1.0 six==1.11.0
> [...]
> $ python -c 'import apache_beam'
> Traceback (most recent call last):
> File "<string>", line 1, in <module>
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/__init__.py",
> line 78, in <module>
> from apache_beam import io
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/io/__init__.py",
> line 21, in <module>
> from apache_beam.io.avroio import *
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/io/avroio.py",
> line 29, in <module>
> from apache_beam.io import filebasedsource
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/io/filebasedsource.py",
> line 33, in <module>
> from apache_beam.io.filesystems import FileSystems
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/io/filesystems.py",
> line 31, in <module>
> from apache_beam.io.gcp.gcsfilesystem import GCSFileSystem
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/io/gcp/gcsfilesystem.py",
> line 27, in <module>
> from apache_beam.io.gcp import gcsio
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/io/gcp/gcsio.py",
> line 36, in <module>
> from apache_beam.utils import retry
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apache_beam/utils/retry.py",
> line 38, in <module>
> from apitools.base.py.exceptions import HttpError
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apitools/base/py/__init__.py",
> line 21, in <module>
> from apitools.base.py.base_api import *
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apitools/base/py/base_api.py",
> line 31, in <module>
> from apitools.base.protorpclite import message_types
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apitools/base/protorpclite/message_types.py",
> line 25, in <module>
> from apitools.base.protorpclite import messages
> File
> "/Users/snormore/Workspace/beam-six/venv/lib/python2.7/site-packages/apitools/base/protorpclite/messages.py",
> line 1165, in <module>
> class Field(six.with_metaclass(_FieldMeta, object)):
> TypeError: Error when calling the metaclass bases
> metaclass conflict: the metaclass of a derived class must be a
> (non-strict) subclass of the metaclasses of all its bases
> (venv)
> $ pip install six==1.10.0
> [...]
> $ python -c 'import apache_beam'
> [success]
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