Python keywords are reserved words that have specific meanings within the language and cannot be used for variable names, function names, or other custom identifiers. They form the building blocks of Python syntax, defining control flow, creating objects, and performing various operations. Here's a breakdown of some common Python keywords:
Basic Keywords:
if, elif, else: Used for conditional statements to execute code blocks based on certain conditions.for, while: Used for loops to iterate over sequences or execute a block of code repeatedly.def: Defines functions, reusable blocks of code that perform specific tasks.return: Exits a function and optionally returns a value.class: Defines classes, blueprints for creating objects that encapsulate data (attributes) and functionality (methods).
Data Type Keywords:
int: Integer numbers (whole numbers).float: Floating-point numbers (decimals).str: Strings (sequences of characters).bool: Boolean values (True or False).list: Ordered collections of elements enclosed in square brackets [].tuple: Ordered collections of elements enclosed in parentheses (), immutable (cannot be changed).dict: Unordered collections of key-value pairs enclosed in curly braces {}.set: Unordered collections of unique elements enclosed in curly braces {}.
Other Important Keywords:
import: Imports modules or libraries for use in your program.from...import: Imports specific elements from a module.global: Declares global variables accessible throughout the program.nonlocal: Declares variables from an enclosing function's namespace.pass: Does nothing, used as a placeholder when a statement is syntactically required but no action needs to be taken.try, except, finally: Used for exception handling to manage errors gracefully.with: Used for context managers, ensuring proper resource management (e.g., closing files).and, or, not: Logical operators used for conditional expressions.is, in: Membership testing operators.
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Python Classes in Ahmednagar
