Python Collections

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In Python, collections are containers that hold multiple elements.

• common built-in collections:
  1. Lists (list):
     • Ordered, mutable sequences
     • Elements can be of different types
  2. Tuples (tuple):
     • Ordered, immutable sequences
     • Typically used for fixed collections
  3. Sets (set):
     • Unordered, mutable collections of unique elements
  4. Dictionaries (dict):
     • Ordered, mutable key-value pairs
     • Efficient for lookups
     • In Python 3.7, dictionaries are ordered
     • In Python 3.6 and earlier, dictionaries are unordered
  5. Strings (str):
     • Ordered, immutable sequences of characters

Kinds

• Python Lists
• Python Tuples
• Python Dictionaries
• Python Sets