using break and continue in for loop to iterate through dictionary-CodePudding

I'm a beginner and need some help. I need to use a for loop with break and continue to find the first person that has a dog in a list. The iteration count should not exceed 2.

Here is the given list:

people = [
    {'name': "Daniel", 'age': 29, 'job': "Engineer", 'pet': "Cat", 'pet_name': "Gato"}, 
    {'name': "Katie", 'age': 30, 'job': "Teacher", 'pet': "Dog", 'pet_name': "Frank"},
    {'name': "Owen", 'age': 26, 'job': "Sales person", 'pet': "Cat", 'pet_name': "Cosmo"},
    {'name': "Josh", 'age': 22, 'job': "Student", 'pet': "Cat", 'pet_name': "Chat"},
    {'name': "Estelle", 'age': 35, 'job': "French Diplomat", 'pet': "Dog", 'pet_name': "Gabby"},
    {'name': "Gustav", 'age': 24, 'job': "Brewer", 'pet': "Dog", 'pet_name': "Helen"}
]

and the following code was given to start:

first_dog_person = None
iteration_count = 0
for value in people:
    iteration_count  = 1

My thought process is using an if statement to iterate through the first two keys and find the value that equals "Dog". But I can't visualize it in my head to enter the code.

I've also learned how to create an empty list for ex. first_dog_person = [] and append key, value pairs to the new list but I can't figure out how to make the element equal the key (first_dog_person = None).

CodePudding user response：

Try using if statement, like in example below:

first_dog_person = None
iteration_count = 0
for value in people:
    iteration_count  = 1
    
    # To ensure that iteration won't exceed 2
    if iteration_count == 2:
       break
    
    if value['pet'] == 'Dog':
        first_dog_person = value

If you want to check key value for a current dictionary item, simply just pass it in square brackets like

value['pet']

in example above.

After making sure that your item value meets the requirements, you can simply assign it to the created variable "first_dog_person".

Be sure to check out Python Docs and read about some Data Structures — Dictionary