Tuple, Set, and Dictionary

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These are all fundamental data structures used to organize information in programming. Here's a breakdown of each:

Tuple:

  • Ordered collection of elements, similar to a list.
  • Elements can be of different data types (strings, numbers, etc.).
  • Immutable: Once created, you cannot change the elements within the tuple.
  • Used for representing fixed data like coordinates (x, y) or product details (name, price, stock).

Set:

  • Unordered collection of unique elements.
  • Elements can be various data types.
  • Useful for storing unique items and performing set operations like checking membership or finding differences between sets.

Dictionary:

  • Unordered collection of key-value pairs.
  • Keys must be unique and immutable (often strings or numbers).
  • Values can be any data type.
  • Used for storing data where you need to access it by a specific key, like phone numbers in a phonebook (key: name, value: phone number).

Here's a table summarizing the key differences:

Feature Tuple Set Dictionary
Order Ordered Unordered Unordered
Mutability Immutable Mutable Mutable
Duplicate Data Allowed Not Allowed Not Allowed (for Keys)
Access Method By index By membership By key
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