Python_variable_conversion.md

Here are examples of how to change data types in Python using type conversion functions:

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1. Converting to Integer (int)

• From string to integer:

  x = "42"
  result = int(x)  # Converts string to integer
  print(result)  # Output: 42

• From float to integer:

  y = 3.9
  result = int(y)  # Converts float to integer (truncates decimal)
  print(result)  # Output: 3

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2. Converting to Float (float)

• From string to float:

  x = "3.14"
  result = float(x)  # Converts string to float
  print(result)  # Output: 3.14

• From integer to float:

  y = 10
  result = float(y)  # Converts integer to float
  print(result)  # Output: 10.0

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3. Converting to String (str)

• From integer to string:

  x = 42
  result = str(x)  # Converts integer to string
  print(result)  # Output: "42"

• From float to string:

  y = 3.14
  result = str(y)  # Converts float to string
  print(result)  # Output: "3.14"

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4. Converting to List (list)

• From string to list:

  x = "hello"
  result = list(x)  # Converts string to list of characters
  print(result)  # Output: ['h', 'e', 'l', 'l', 'o']

• From tuple to list:

  y = (1, 2, 3)
  result = list(y)  # Converts tuple to list
  print(result)  # Output: [1, 2, 3]

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5. Converting to Tuple (tuple)

• From list to tuple:

  x = [1, 2, 3]
  result = tuple(x)  # Converts list to tuple
  print(result)  # Output: (1, 2, 3)

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6. Converting to Set (set)

• From list to set:

  x = [1, 2, 3, 3]
  result = set(x)  # Converts list to set (removes duplicates)
  print(result)  # Output: {1, 2, 3}

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7. Converting to Dictionary (dict)

• From list of tuples to dictionary:

  x = [("name", "Alice"), ("age", 25)]
  result = dict(x)  # Converts list of key-value pairs to dictionary
  print(result)  # Output: {'name': 'Alice', 'age': 25}

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8. Converting to Boolean (bool)

• From string to boolean:

  x = ""
  result = bool(x)  # Converts empty string to False
  print(result)  # Output: False

• From integer to boolean:

  y = 1
  result = bool(y)  # Converts 1 to True
  print(result)  # Output: True

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9. Converting to Bytes (bytes)

• From string to bytes:

  x = "hello"
  result = bytes(x, encoding="utf-8")  # Converts string to bytes
  print(result)  # Output: b'hello'

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10. Converting to Frozenset (frozenset)

• From list to frozenset:

  x = [1, 2, 3, 3]
  result = frozenset(x)  # Converts list to immutable set
  print(result)  # Output: frozenset({1, 2, 3})

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11. Converting to Range (range)

• From integer to range:

  x = 5
  result = range(x)  # Creates a range from 0 to 4
  print(list(result))  # Output: [0, 1, 2, 3, 4]

These examples demonstrate how to convert various types in Python effectively. If you're working with custom objects or non-standard types, you may need additional handling using custom functions or methods.