Data Types and Variables in Python

In Python, variables are used to store data values. A variable is created the moment you assign a value to it, and you don’t need to declare its type explicitly. Python supports several data types:

• Numeric Types: int (integer), float (floating-point number), complex (complex numbers).
• Sequence Types: list, tuple, range.
• Text Type: str (string).
• Mapping Type: dict (dictionary).
• Set Types: set, frozenset.
• Boolean Type: bool (True or False).
• Binary Types: bytes, bytearray, memoryview.

Example:

# Variable assignment
x = 10        # int
y = 3.14      # float
name = "Alice"  # str
is_active = True  # bool

# Printing variable types
print(type(x))      # Output: <class 'int'>
print(type(y))      # Output: <class 'float'>
print(type(name))   # Output: <class 'str'>
print(type(is_active))  # Output: <class 'bool'>