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Tag: python

Usage of a dictionary, Right or wrong?

I’m creating a car sales program and need to use a dictionary, I have a basic understanding of them. Would it be efficient to hold the car name as a string for the key, then store the relevant cars selling price in the values through a list? for example, Can this work? Is there a better usage for the di…

Substract two row values in dataframe python

Currently I have a sort of dataframe where I want to substract value from current row from the previous one. example: df = pd.Datafame([1,4,3,5,6],columns = [“time”)]) left 1 4 3 5 6 I want to iterate over these rows and store it in a list. So the list will get like this [-3,1,-2,-1]. So far I hav…

How to remove array from values in a dictionary

I have the following dictionary But I’d like to remove the lists so it looks like this: Is there a simple way to do this? I think I might be able to iterate through and remove the list. Thanks Answer In order to produce the required output you will need a list (set) of keys that should not be modified.