Python list basics

python_lists.py

# Create an empty list using square brackets.
numbers = []
print(numbers) # Output: []

# Create an empty list using list().
numbers = list()
print(numbers) # Output: []

# Create a list of numbers.
numbers = [1, 2, 3]
print(numbers) # Output: [1, 2, 3]

# Create a list of numbers in a range.
numbers = list(range(1, 4))
print(numbers) # Output: [1, 2, 3]

# Append to a list of numbers.
numbers = [1, 2]
print(numbers) # Output: [1, 2]
numbers.append(3)
print(numbers) # Output: [1, 2, 3]

# Create a list of tuples.
tuples_list = [(1, 2), (2, 4), (3, 6)]
print(tuples_list) # Output: [(1, 2), (2, 4), (3, 6)]

# Create a list of lists.
list_of_lists = [[1, 2], [2, 4], [3, 6]]
print(list_of_lists) # Output: [[1, 2], [2, 4], [3, 6]]