怎么才能知道python中方法的用法

Question

看教程不理解shift这个方法的作用和用法

就自己在ipython上试着help，没有成功

哪位前辈知道如何直接在ipython中查找这种方法的用法？

Answer 1

shift不是全局方法，所以直接help(shift)会报错，你需要将方法完整的调用传进去比如想知道append的用法就要这样b=[]help(b.append)  #正确help(append)  #会报错

Answer 2

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