Python

Built-in Types (Not keywords)

• int Integer numbers of unlimited size

• float Floating-point numbers

• complex Complex numbers with real and imaginary parts

• str Text strings (sequence of Unicode characters)

• bool Boolean type (subclass of int, values True/False)

• list Mutable ordered sequence

• tuple Immutable ordered sequence

• dict Dictionary for key-value pairs

• set Unordered collection of unique elements

• frozenset Immutable version of set

• bytes Immutable sequence of bytes

• bytearray Mutable sequence of bytes

• range Immutable sequence of numbers

• NoneType Type of None value

Boolean Values

• True Boolean true value

• False Boolean false value

• None Represents absence of value or null

Logical Operators

• and Logical AND operator

• or Logical OR operator

• not Logical NOT operator

• is Tests object identity (same object in memory)

• in Tests membership in a sequence or collection

Control Flow

• if Conditional statement for branching logic

• elif Else-if for additional conditional branches

• else Defines alternative branch in an if statement

• for Starts a for loop for iteration

• while Starts a while loop

• break Exits from a loop

• continue Skips the current iteration of a loop

• pass Placeholder that does nothing

• return Exits a function and optionally returns a value

• yield Returns a value from a generator and suspends execution

Exception Handling

• try Defines a block of code to test for exceptions

• except Catches and handles exceptions

• finally Defines code block that always executes after try-except

• raise Explicitly raises an exception

• assert Raises AssertionError if condition is false

Function and Class Definition

• def Defines a function

• class Defines a class

• lambda Creates anonymous inline function

• return Exits a function and optionally returns a value

• yield Returns a value from a generator and suspends execution

Import and Modules

• import Imports modules or specific objects

• from Specifies source for importing

• as Creates an alias for imported modules or objects

Context Management

• with Simplifies resource management using context managers

• as Used with 'with' to bind context manager result to variable

Variable Scope

• global Declares a variable as global scope

• nonlocal Declares a variable from enclosing function scope

Asynchronous Programming

• async Defines asynchronous functions or context managers

• await Suspends execution until awaitable object completes

Deletion

• del Deletes references to objects