Tuples
A tuple is like a list but immutable — once created, its contents cannot be changed.
They're useful for grouping values that should stay fixed, such as coordinates (x, y), RGB colors (255, 0, 0), or other constant data.
Defining a Tuple
You define a tuple using parentheses (()) instead of square brackets:
coordinates = (10, 20)
You can also create a tuple without parentheses: x = 1, 2, 3 — Python understands the comma means "tuple".
Immutability
Tuples cannot be modified — you can't add, remove, or change values.
Trying to do so raises a TypeError.
This makes them ideal for fixed configurations, constants, or safe return values from functions.
Accessing and Unpacking Tuples
Like lists, tuples use indexes starting at 0.
For example, colors[0] is "red", and colors[-1] is "blue".
Tuples also support unpacking — assigning values to variables in one step:
x, y = (10, 20) sets x = 10 and y = 20.
This is especially useful when functions return multiple values.
Summary
- Tuples store multiple values, like lists — but are immutable;
- Use parentheses or commas to define them;
- Access items by index — just like lists;
- Once created, tuples can't be changed;
- Use them when you need fixed, reliable data.
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When should I use a tuple instead of a list?
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A tuple is like a list but immutable — once created, its contents cannot be changed.
They're useful for grouping values that should stay fixed, such as coordinates (x, y), RGB colors (255, 0, 0), or other constant data.
Defining a Tuple
You define a tuple using parentheses (()) instead of square brackets:
coordinates = (10, 20)
You can also create a tuple without parentheses: x = 1, 2, 3 — Python understands the comma means "tuple".
Immutability
Tuples cannot be modified — you can't add, remove, or change values.
Trying to do so raises a TypeError.
This makes them ideal for fixed configurations, constants, or safe return values from functions.
Accessing and Unpacking Tuples
Like lists, tuples use indexes starting at 0.
For example, colors[0] is "red", and colors[-1] is "blue".
Tuples also support unpacking — assigning values to variables in one step:
x, y = (10, 20) sets x = 10 and y = 20.
This is especially useful when functions return multiple values.
Summary
- Tuples store multiple values, like lists — but are immutable;
- Use parentheses or commas to define them;
- Access items by index — just like lists;
- Once created, tuples can't be changed;
- Use them when you need fixed, reliable data.
Danke für Ihr Feedback!
