checklist.md

Сheck Your Code Against the Following Points

Code Efficiency

Don't call the same function several times. Store the result and reuse it.

Good example:

animals = "cat, dog, rabbit"
animals_title = animals.title()
print(animals_title)

for letter in set(animals_title):
    if animals_title.count(letter) > 1:
        print("wow")

Bad example:

animals = "cat, dog, rabbit"
print(animals.title())

for letter in set(animals.title()):
    if animals.title().count(letter) > 1:
        print("wow")

Don`t Repeat Yourself

Write your code, so you don't have duplicated lines or whole blocks of code.

Good example:

if "cat" in animal_list:
    print("found")
else:
    print("not found")

print("the end")

Bad example:

if "cat" in animal_list:
    print("found")
    print("the end")
else:
    print("not found")
    print("the end")

Code Style

1. Use descriptive and correct variable names.

Good example:

list_of_numbers = [1, 2, 3, 4]
result = 0
for number in list_of_numbers:
    result += number

Bad example:

ls = [1, 2, 3, 4]
rs = 0
for a in ls:
    rs += a

2. Use one style of quotes in your code. Double quotes are preferable.

Clean Code

1. You don't need the nonlocal statement when you change a mutable object in inner function.
2. Add comments, prints, and functions to check your solution when you write your code. Don't forget to delete them when you are ready to commit and push your code.