There is class structure like shown below:

class RegressionResults(LikelihoodModelResults):
    ...
    ...
    def conf_int(self, alpha=.05, cols=None):
        ci = super(RegressionResults, self).conf_int(alpha=alpha, cols=cols)
        return ci

and here is LikelihoodModelResults:

class LikelihoodModelResults(Results):
    ...
    ...
    def conf_int(self, alpha=.05, cols=None):
    ...
    ...

and the class Results doesn't have a method called conf_int.

Given such structure of classes and inheritence, I would like to know what happens when conf_int is called on the instance of RegressionResults. will the code inside conf_int of LikelihoodModelResults be run? if yes, why even try to override it?

I am sorry, if i have been vague in the question's title, you are free to edit it if you have a better title. And sources of above classes are RegressionResults, LikelihoodModelResults.

CodePudding user response：

In terms of code the overridden method does nothing extra, so you're right that the override seems redundant. However, in the original source it has a large docstring and then this comment inside the method body:

# keep method for docstring for now

So I assume the override is there for documentation purposes rather than mechanical ones.