matplotlibインストール時のpolyfitエラー - Qiita

pip install matplotlib RuntimeError: Polyfit sanity test emitted a warning, most likely due to using a buggy Accelerate backend. If you compiled yourself, see site.cfg.example for information. Otherwise report this to the vendor that provided NumPy. RankWarning: Polyfit may be poorly conditioned ---------------------------------------- ERROR: Command errored out with exit status 1: python setup.py