Question

PYTHON PROBLEM

Define a function generate_kv_strings( dictionary ) that creates and return a list where the element is a string representing a key-value pair in the format "key: value". Your solution must use a list comprehension.

Hint: Remember that you need to convert each key and value into a str before concatenating them, in case they are of a different type.

Example Usage:
states = {'Florida': 'FL', 'Oregon': 'OR', 'California': 'CA', 'New York': 'NY', 'North Carolina': 'NC'}
numbers = {'four': 4, 'three': 3, 'two': 2, 'one': 1}
print generate_kv_strings( states )
print generate_kv_strings( numbers )
Run > Run Module
['California: CA', 'New York: NY', 'Florida: FL', 'North Carolina: NC', 'Oregon: OR']
['four: 4', 'one: 1', 'three: 3', 'two: 2']

Answer 1

# python code to a list where the element is a string representing a key-value pair in the format "key: value"

def generate_kv_strings(states):
   list = []
   # iterate over dictionary
   for key in states:
      # create a string of key value pair
      string = str(key) + ": " + str(states[key])
      # append to list
      list.append(string)
   return list

states = {'Florida': 'FL', 'Oregon': 'OR', 'California': 'CA', 'New York': 'NY', 'North Carolina': 'NC'}
numbers = {'four': 4, 'three': 3, 'two': 2, 'one': 1}
print generate_kv_strings(states)
print generate_kv_strings( numbers )

'''
output:

['California: CA', 'New York: NY', 'Florida: FL', 'North Carolina: NC', 'Oregon: OR']
['four: 4', 'one: 1', 'three: 3', 'two: 2']

'''