PEP 572 introduced the walrus operator (:=) in Python 3.8, allowing assignment within expressions to reduce code duplication and improve readability.
The walrus operator gets its name from its resemblance to a walrus face - the colon represents the eyes and the equals sign represents the tusks!
PEP 498 introduced f-strings (formatted string literals) in Python 3.6, allowing direct expression embedding in strings with f"Hello {name}" syntax, making string formatting more readable and performant.
The datetime module provides classes for manipulating dates and times, including datetime, date, time, and timedelta objects with timezone support and flexible formatting options.
The collections module provides specialized container datatypes like Counter for counting, defaultdict for missing keys, namedtuple for structured data, and deque for efficient queue operations.
PEP 8 defines Python’s official coding style guide, emphasizing readability with 4-space indentation, descriptive naming conventions, and the principle that “code is read much more often than it is written.”