规范说明

在遇到使用range和len进行迭代的代码时会发出此警告。此类代码可以通过使用内置的enumerate进行简化。

问题代码

seasons = ['Spring', 'Summer', 'Fall', 'Winter']

for i in range(len(seasons)):  # [consider-using-enumerate]
    print(i, seasons[i])

正确代码

seasons = ['Spring', 'Summer', 'Fall', 'Winter']

for i, season in enumerate(seasons):
    print(i, season)

来源

https://pylint.readthedocs.io