How to insert list at specific position into list of lists-CodePudding

I want to know if it is possible to insert a list of floats into a list of lists at a specific position and how to index it or if I should consider using a different datatype (like an array or dictionary) instead:

As an example:

list_to_insert = [0.7, 0.3, 0.85, -0.1, 0.4]


list_of_lists = [[[], []],
                [[], [], [], [], [], []],
                [[], [], [], [], [], []],
                [[], []]]


=> list_of_lists = [[[], []],
                   [[], [], [], [], [], []],
                   [[], [], [], [], [list_to_insert], []],
                   [[], []]]

CodePudding user response：

You can insert in a list of lists like

list_of_lists[2].insert(4,list_to_insert)

However in the output you gave the element isn't inserted rather replaced. So to get that output

list_of_lists[2][0]=list_to_insert

CodePudding user response：

You can simply specify the index and assign the list at that index. For example, in your example, the following line will get the desired output.

list_of_lists[2][4] = list_to_insert