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List Methods

Strings are not the only Python types that have methods associated with them. Lists, floats, integers and booleans are also types that come packaged with a bunch of useful methods. In this exercise, you'll be experimenting with:

  • .index(), to get the index of the first element of a list that matches its input and
  • .count(), to get the number of times an element appears in a list.

You'll be working on the list with the area of different parts of a house: areas.

This exercise is part of the course

Introduction to Python

View Course

Exercise instructions

  • Use the .index() method to get the index of the element in areas that is equal to 20.0. Print out this index.
  • Call .count() on areas to find out how many times 9.50 appears in the list. Again, simply print out this number.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Create list areas
areas = [11.25, 18.0, 20.0, 10.75, 9.50]

# Print out the index of the element 20.0


# Print out how often 9.50 appears in areas
Edit and Run Code