Tuple assignment is a feature that allows you to assign multiple variables simultaneously by unpacking the values from a tuple (or other iterable) into those variables.
Tuple assignment is a concise and powerful way to assign values to multiple variables in a single line of code.
Here’s how it works:
# Creating a tuple
my_tuple = (1, 2, 3)
# Tuple assignment
a, b, c = my_tuple
# Now, a is 1, b is 2, and c is 3
Code language: Python (python)In this example, the values from the my_tuple tuple are unpacked and assigned to the variables a, b, and c in the same order as they appear in the tuple.
Tuple assignment is not limited to tuples; it can also work with other iterable types like lists:
# Creating a list
my_list = [4, 5, 6]
# Tuple assignment with a list
x, y, z = my_list
# Now, x is 4, y is 5, and z is 6
Code language: Python (python)Tuple assignment can be used to swap the values of two variables without needing a temporary variable:
# Swapping values using tuple assignment
a = 1
b = 2
a, b = b, a
# Now, a is 2, and b is 1
Code language: Python (python)Tuple assignment is a versatile feature in Python and is often used when you want to work with multiple values at once, making your code more readable and concise.
Tuple Assignment Python Example
Here are some examples of tuple assignment in Python:
Example 1: Basic Tuple Assignment
# Creating a tuple
coordinates = (3, 4)
# Unpacking the tuple into two variables
x, y = coordinates
# Now, x is 3, and y is 4
Code language: Python (python)Example 2: Multiple Variables Assigned at Once
# Creating a tuple
person_info = ("Alice", 30, "New York")
# Unpacking the tuple into multiple variables
name, age, city = person_info
# Now, name is "Alice," age is 30, and city is "New York"
Code language: Python (python)Example 3: Swapping Values
# Swapping values of two variables using tuple assignment
a = 5
b = 10
a, b = b, a
# Now, a is 10, and b is 5
Code language: Python (python)Example 4: Unpacking a Tuple Inside a Loop
# Creating a list of tuples
points = [(1, 2), (3, 4), (5, 6)]
# Iterating through the list and unpacking each tuple
for x, y in points:
print(f"X-coordinate: {x}, Y-coordinate: {y}")
# Output:
# X-coordinate: 1, Y-coordinate: 2
# X-coordinate: 3, Y-coordinate: 4
# X-coordinate: 5, Y-coordinate: 6
Code language: Python (python)Example 5: Ignoring Unwanted Values
# Creating a tuple
values = (10, 20, 30, 40, 50)
# Unpacking only the first and last values
first, *_, last = values
# Now, first is 10, and last is 50, and other values are ignored
Code language: Python (python)These examples demonstrate various uses of tuple assignment in Python, from basic variable assignment to more advanced scenarios like swapping values or ignoring unwanted elements in the tuple. Tuple assignment is a powerful tool for working with structured data in Python.
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