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The else statement executes if the condition in the if statement evaluates to False. Syntax. if condition: # body of if statement else: # body of else statement. Here, if the condition inside the if statement evaluates to. True - the body of if executes, and the body of else is skipped.
The first sheet provides an overview of many basic concepts in Python. Individual sheets cover lists, dictionaries, if statements and while loops, functions, classes, and more. There are also library-specific cheat sheets for Pygame, Matplotlib, Plotly, and Django.
def say_hello (name) -> str: return "Hello, "+ name var = "Python" print (say_hello(var)) # => Hello, Python # Union returned from typing import Union def resp200 ( meaningful ) -> Union [ int , str ]: return "OK" if meaningful else 200
The IF statement is used to check if a condition is true. Essentially, if the condition is true, the Python interpreter runs a block of statements called the if-block. If the statement is false, the interpreter skips the if block and processes another block of statements called the else-block.
Beginner's Python Cheat Sheet - If Statements and While Loops. Focuses on if statements and while loops: how to write conditional tests with strings and numerical data, how to write simple and complex if statements, and how to accept user input. Also covers a variety of approaches to using while loops. Beginner's Python Cheat Sheet - Functions
def. Defines a new function or class method. def say_hi(): print('hi') if, elif, else. Conditional execution: “if” condition == True? "elif" condition == True? Fallback: else branch. = int(input("ur val:")) if x > 3: print("Big") elif x == 3: print("3") else: print("Small") for, while. # For loop. for i in [0,1,2]: print(i) # While loop does same.
enumerate(c)→ iterator on (index, value) zip(c1,c2...)→ iterator on tuples containing items at same index c. i. all(c)→ True if all c items evaluated to true, else False at least one item of c evaluated true, else False any(c)→ if True.
