Data Types and Variables in Python
Python is a dynamically-typed language, which means that variables do not need to be declared before they are used. Variables can be assigned values of any data type, such as numbers, strings, and lists. Python Data Types Python has several built-in data types, including: Numbers: integers, floating-point numbers, and complex numbers Strings: sequences of characters Lists: ordered sequences of values Tuples: ordered, immutable sequences of values Dictionaries: unordered collections of key-value pairs Sets: unordered collections of unique values Booleans: logical values True and False NoneType: a special type that represents the absence of a value Each data type has its own set of operations and methods. For example, you can concatenate two strings using the + operator: first_name = 'John' last_name = 'Doe' full_name = first_name + ' ' + last_name print(full_name) # Output: 'John Doe' You can also perform arithm...