Python Introspection: How do I find out what functions can be applied to instances of classes

Question

For example: air_passengers.rolling_window(window = 12).mean().plot()

How do I find out that mean() can be applied to a rolling_window()? How do I find out that plot() can be applied to a mean()?

Is there something equivalent to doc for this?

Answer 1

您可以使用dir（object），它提供了对象的所有相关属性

print(dir(air_passengers.rolling_window(window = 12)))