Provides some compatibility helpers for Flake8 plugins that intend to support Flake8 2.x and 3.x simultaneously.
copied from cf-staging / flake8-polyfillconda install conda-forge::flake8-polyfill
conda install conda-forge/label/cf201901::flake8-polyfill
conda install conda-forge/label/cf202003::flake8-polyfill
conda install conda-forge/label/gcc7::flake8-polyfill