Python Data Types

Data Types in Python

Numeric Types

• Integers (int): whole numbers, e.g., 1, 2, 3, etc.
• Floating Point Numbers (float): decimal numbers, e.g., 3.14, -0.5, etc.
• Complex Numbers (complex): numbers with real and imaginary parts, e.g., 3 + 4j, -2 - 3j, etc.

Sequence Types

• Strings (str): sequences of characters, e.g., 'hello', "hello", etc.
  • Can be enclosed in single quotes or double quotes.
  • Can be concatenated using the + operator.
• Lists (list): ordered collections of items, e.g., [1, 2, 3], ['a', 'b', 'c'], etc.
  • Can be indexed and sliced.
  • Can be modified (mutable).
• Tuples (tuple): ordered, immutable collections of items, e.g., (1, 2, 3), ('a', 'b', 'c'), etc.
  • Similar to lists, but cannot be modified.

Mapping Type

• Dictionaries (dict): unordered collections of key-value pairs, e.g., {'name': 'John', 'age': 30}, etc.
  • Keys must be unique and immutable.
  • Values can be of any type.

Set Types

• Sets (set): unordered collections of unique items, e.g., {1, 2, 3}, {'a', 'b', 'c'}, etc.
  • Automatically remove duplicates.
  • Can be used for set operations (union, intersection, difference, etc.).
• Frozensets (frozenset): immutable sets, e.g., frozenset({1, 2, 3}), etc.
  • Similar to sets, but cannot be modified.

Boolean Type

• Booleans (bool): represent true or false values, e.g., True, False, etc.

Binary Type

• Bytes (bytes): sequences of integers in the range 0 <= x < 256, e.g., b'hello', etc.
• ByteArray (bytearray): mutable sequences of integers in the range 0 <= x < 256, e.g., bytearray(b'hello'), etc.

Data Types in Python

Numeric Types

• Integers (int) are whole numbers, such as 1, 2, 3, etc.
• Floating Point Numbers (float) are decimal numbers, such as 3.14, -0.5, etc.
• Complex Numbers (complex) are numbers with real and imaginary parts, such as 3 + 4j, -2 - 3j, etc.

Sequence Types

• Strings (str) are sequences of characters, such as 'hello', "hello", etc.
  • Can be enclosed in single quotes or double quotes.
  • Can be concatenated using the + operator.
• Lists (list) are ordered collections of items, such as [1, 2, 3], ['a', 'b', 'c'], etc.
  • Can be indexed and sliced.
  • Can be modified (mutable).
• Tuples (tuple) are ordered, immutable collections of items, such as (1, 2, 3), ('a', 'b', 'c'), etc.
  • Similar to lists, but cannot be modified.

Mapping Type

• Dictionaries (dict) are unordered collections of key-value pairs, such as {'name': 'John', 'age': 30}, etc.
  • Keys must be unique and immutable.
  • Values can be of any type.

Set Types

• Sets (set) are unordered collections of unique items, such as {1, 2, 3}, {'a', 'b', 'c'}, etc.
  • Automatically remove duplicates.
  • Can be used for set operations (union, intersection, difference, etc.).
• Frozensets (frozenset) are immutable sets, such as frozenset({1, 2, 3}), etc.
  • Similar to sets, but cannot be modified.

Boolean Type

• Booleans (bool) represent true or false values, such as True, False, etc.

Binary Type

• Bytes (bytes) are sequences of integers in the range 0 ≤ x < 256.

This quiz covers the different data types in Python, including numeric types such as integers and floating point numbers, and sequence types like strings.