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import sys
import warnings
import textwrap
msg = textwrap.dedent("""
You are running Setuptools on Python 2, which is no longer
supported and
>>> SETUPTOOLS WILL STOP WORKING <<<
in a subsequent release. Please ensure you are installing
Setuptools using pip 9.x or later or pin to `setuptools<45`
in your environment.
If you have done those things and are still encountering
this message, please comment in
https://github.com/pypa/setuptools/issues/1458
about the steps that led to this unsupported combination.
""")
sys.version_info < (3,) and warnings.warn("*" * 60 + msg + "*" * 60)
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