qiita.com pandasで計算 import pandas as pd url = 'https://baseball-data.com/stats/pitcher-all/era-1.html' dfs = pd.read_html(url, index_col=0) league = pd.DataFrame({ 'チーム': [ '広島', '阪神', 'DeNA', '巨人', '中日', 'ヤクルト', 'ソフト…