What values are.
NUMBERS
Whole numbers and decimals, handled separately.
TEXT
Strings, written in quotes.
TRUE AND FALSE
Boolean values, used for conditions.
NOTHING
A special value representing the absence of a value.
Distinct from zero or an empty string.
LISTS
Ordered collections that can be changed.
TUPLES
Ordered collections that cannot be changed once created.
DICTIONARIES
Collections of key and value pairs.
SETS
Unordered collections of unique values.
WHY THE DISTINCTIONS MATTER
Each supports different operations, and choosing correctly makes code simpler.
WHAT TO USE WHEN
A list for a sequence of items A dictionary when you look things up by a key A set when uniqueness matters A tuple when the contents must not change
HOW TO CHECK A TYPE
Python can report the type of any value.
Useful when behaviour surprises you.
