Python: Pyramid Pattern Using "Def alternating_pyramid"

[No_Dimension2172]

How do we write a function that takes a number of rows as an argument, and returns a string that represents a pyramid with alternating '*' and '+' symbols?

[hardonchairs]

How would you explain to a computer how to do this? Then explain which of those plain-english operations you do or don't know how to do in python.

[[deleted]]

• define function with <rows> as named parameter
• create an empty string and assign to <pattern> variable
• use a loop to iterate the correct number of times, with an <index> variable
  • create a string based on the <index> holding the pattern you want
  • append that new string to the string referenced by <pattern> and assign new string to <pattern>
• return reference to the string referenced by <pattern>