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[rllib] [RFC] Deprecate Python 2 / RLlib #4832

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merged 1 commit into from May 25, 2019
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[rllib] [RFC] Deprecate Python 2 / RLlib #4832

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6 changes: 6 additions & 0 deletions python/ray/rllib/__init__.py
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Expand Up @@ -3,6 +3,7 @@
from __future__ import print_function

import logging
import sys

# Note: do not introduce unnecessary library dependencies here, e.g. gym.
# This file is imported from the tune module in order to register RLlib agents.
Expand Down Expand Up @@ -30,6 +31,11 @@ def _setup_logger():
logger.addHandler(handler)
logger.propagate = False

if sys.version_info[0] < 3:
logger.warn(
"RLlib Python 2 support is deprecated, and will be removed "
"in a future release.")


def _register_all():

Expand Down