FAQ: Heaps: Python - Adding an Element: Heapify Up I

This community-built FAQ covers the “Adding an Element: Heapify Up I” exercise from the lesson “Heaps: Python”.

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This exercise can be found in the following Codecademy content:

Computer Science

Complex Data Structures

FAQs on the exercise Adding an Element: Heapify Up I

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In my first attempt at page 3, step 2, it passed me, but gave me the weird output [None, 42]. Rather than leave well enough alone, I added some extra lines of code and my output is looking much better now. Here is the relevant part of my revised code:

    if self.heap_list == [None]:
      self.heap_list = [element]
    else:
      self.heap_list.append(element)
    self.heapify_up()

The MinHeap class is supposed to have None.