Python Tutorial

Introduction Python Features Python Applications System requirements for Python Python Installation Python Examples Python Basics Python Indentation Python Variables Python Data Types Python IDE Python Keywords Python Operators Python Comments Python Pass Statement

Python Conditional Statements

Python if Statement Python elif Statement Python If-else statement Python Switch Case

Python Loops

Python for loop Python while loop Python Break Statement Python Continue Statement Python Goto Statement

Python Arrays

Python Array Python Matrix

Python Strings

Python Strings Python Regex

Python Built-in Data Structure

Python Lists Python Tuples Python Lists vs Tuples Python Dictionary Python Sets

Python Functions

Python Function Python min() function Python max() function Python User-define Functions Python Built-in Functions Python Recursion Anonymous/Lambda Function in Python python apply() Function Python lambda() Function

Python File Handling

Python File Handling Python Read CSV Python Write CSV Python Read Excel Python Write Excel Python Read Text File Python Write Text File Read JSON File in Python

Python Exception Handling

Python Exception Handling Python Errors and exceptions Python Assert

Python OOPs Concept

OOPs Concepts in Python Classes & Objects in Python Inheritance in Python Polymorphism in Python Python Encapsulation Python Constructor Python Super function Python Static Method Static Variables in Python Abstraction in Python

Python Iterators

Iterators in Python Yield Statement In Python

Python Generators

Python Generator

Python Decorators

Python Decorator

Python Functions and Methods

Python Built-in Functions Python String Methods Python List Methods Python Dictionary Methods Python Tuple Methods Python Set Methods

Python Modules

Python Modules Python Datetime Module Python Math Module Python Import Module Python Time Module Python Random Module Python Calendar Module CSV Module in Python Python Subprocess Module Python Subprocess

Python MySQL

Python MySQL Python MySQL Client Update Operation Delete Operation Database Connection Creating new Database using Python MySQL Creating Tables Performing Transactions

Python MongoDB

Python MongoDB

Python SQLite

Python SQLite

Python Data Structure Implementation

Python Stack Python Queue Python Linked List Python Hash Table Python Graph

Python Advance Topics

Speech Recognition in Python Face Recognition in Python Python Linear regression Python Rest API Python Command Line Arguments Python JSON Python Virtual Environment Type Casting in Python Python Collections Python Commands Python Data Visualization Python Debugger Python DefaultDict Python Enumerate

Python 3

Anaconda in Python 3 Anaconda python 3 installation for windows 10 List Comprehension in Python3


Python PPTX Python Pickle Python Seaborn Python Coroutine Python EOL Python Infinity Python math.cos and math.acos function Python Project Ideas Based On Django Reverse a String in Python Reverse a Number in Python Python Word Tokenizer Python Trigonometric Functions Python try catch exception GUI Calculator in Python Implementing geometric shapes into the game in python Installing Packages in Python Python Try Except Python Sending Email Socket Programming in Python Python CGI Programming Python Data Structures Python abstract class Python Compiler Python K-Means Clustering NSE Tools In Python Operator Module In Python Palindrome In Python Permutations in Python Pillow Python introduction and setup Python Functionalities of Pillow Module Python Argmin Python whois Python JSON Schema Python lock Return Statement In Python Reverse a sentence In Python tell() function in Python Why learn Python? Write Dictionary to CSV in Python Write a String in Python Binary Search Visualization using Pygame in Python Latest Project Ideas using Python 2022 Closest Pair of Points in Python ComboBox in Python Python vs R Best resources to learn Numpy and Pandas in python Check Letter in a String Python Python Console Python Control Statements Convert Float to Int in Python using Pandas Difference between python list and tuple Importing Numpy in Pycharm Python Key Error Python NewLine Python tokens and character set Python Strong Number any() Keyword in python Best Database in Python Check whether dir is empty or not in python Comments in the Python Programming Language Convert int to Float in Python using Pandas Decision Tree Classification in Python End Parameter in python __GETITEM__ and __SETITEM__ in Python Python Namespace Python GUI Programming List Assignment Index out of Range in Python List Iteration in Python List Index out of Range Python for Loop List Subtract in Python Python Empty Tuple Python Escape Characters Sentence to python vector Slicing of a String in Python Executing Shell Commands in Python Genetic Algorithm in python Get index of element in array in python Looping through Data Frame in Python Syntax of Map function in Python After Python What Should I Learn Python AIOHTTP Alexa Python Artificial intelligence mini projects ideas in python Artificial intelligence mini projects with source code in Python Find whether the given stringnumber is palindrome or not First Unique Character in a String Python Python Network Programming Python Interface Python Multithreading Python Interpreter Data Distribution in python Flutter with tensor flow in python Front end in python Iterate a Dictionary in Python Iterate a Dictionary in Python – Part 2 Allocate a minimum number of pages in python Assertion Errors and Attribute Errors in Python Checking whether a String Contains a Set of Characters in python Python Control Flow Statements *Args and **Kwargs in Python Bar Plot in Python Conditional Expressions in Python Function annotations() in Python How to Write a Configuration file in Python Image to Text in python import() Function in Python Import py file in Python Multiple Linear Regression using Python Nested Tuple in Python Python String Negative Indexing Reading a File Line by Line in Python Python Comment Block Base Case in Recursive function python ER diagram of the Bank Management System in python Image to NumPy Arrays in Python NOT IN operator in Python One Liner If-Else Statements in Python Sklearn in Python Python Ternary Operators Self in Python Python vs Java Python Modulo Python Packages Python Syntax Python Uses Python Bitwise Operators Python Identifiers Python Matrix Multiplication Python AND Operator Python Logical Operators Python Multiprocessing Python Unit Testing __init__ in Python Advantages of Python Is Python Case-sensitive when Dealing with Identifiers Python Boolean Python Call Function Python History Python Image Processing Python main() function Python Permutations and Combinations Difference between Input() and raw_input() functions in Python Conditional Statements in python Confusion Matrix Visualization Python Python Algorithms Python Modules List Difference between Python 2 and Python 3 Is Python Case Sensitive Method Overloading in Python Python Arithmetic Operators Assignment Operators in Python Is Python Object Oriented Programming language Division in Python Python exit commands Continue And Pass Statements In Python Colors In Python Convert String Into Int In Python Convert String To Binary In Python Convert Uppercase To Lowercase In Python Convert XML To JSON In Python Converting Set To List In Python Covariance In Python CSV Module In Python Decision Tree In Python Difference Between Yield And Return In Python Dynamic Typing In Python

How to

How to Substring a String in Python How to Iterate through a Dictionary in Python How to convert integer to float in Python How to reverse a string in Python How to take input in Python How to install Python in Windows How to install Python in Ubuntu How to install PIP in Python How to call a function in Python How to download Python How to comment multiple lines in Python How to create a file in Python How to create a list in Python How to declare array in Python How to clear screen in Python How to convert string to list in Python How to take multiple inputs in Python How to write a program in Python How to compare two strings in Python How to create a dictionary in Python How to create an array in Python How to update Python How to compare two lists in Python How to concatenate two strings in Python How to print pattern in Python How to check data type in python How to slice a list in python How to implement classifiers in Python How To Print Colored Text in Python How to develop a game in python How to print in same line in python How to create a class in python How to find square root in python How to import numy in python How to import pandas in python How to uninstall python How to upgrade PIP in python How to append a string in python How to open a file in python How to Open a file in python with Path How to run a Python file in CMD How to change the names of Columns in Python How to Concat two Dataframes in Python How to Iterate a List in Python How to learn python Online How to Make an App with Python


Python Sort List Sort Dictionary in Python Python sort() function Python Bubble Sort


Factorial Program in Python Prime Number Program in Python Fibonacci Series Program in Python Leap Year Program in Python Palindrome Program in Python Check Palindrome In Python Calculator Program in Python Armstrong Number Program in Python Python Program to add two numbers Anagram Program in Python Even Odd Program in Python GCD Program in Python Python Exit Program Python Program to check Leap Year Operator Overloading in Python Pointers in Python Python Not Equal Operator Raise Exception in Python Salary of Python Developers in India What is a Script in Python

Python And Operator

Python's and operator takes two operands that can be either object, Boolean expressions, or both. And operator creates more complex expressions using those operands. Conditions are the common name for the operands in and expression. And expression yields a true result if both requirements are satisfied. Otherwise, a false result is returned:


print(True and True )
print(False and False )
print(True and False )
print(False and True )


Python And Operator
  • These illustrations demonstrate that and expression only return True if both operands are true. And operator is a binary operator since it requires two operands to create an expression.

The few illustrations above demonstrate and operator's truth table.

operand1operand2operand1 and operand2

This table lists the truth value of a Boolean expression with operand1 and operand2 as examples. The truth values of the operands of the expression influence its result. If both are true, it will be true. It will be untrue if not. The general reasoning behind the and operator is as follows. In Python, this operator is capable of more, though.

Using Python and Operator with Boolean Expressions

To create compound Boolean expressions, combinations of variables and values that result in a Boolean value, you'll often utilize logical operators. Boolean expressions thus return True or False.

Common examples of this kind of expression include comparisons and equality tests:

print(6 == 3 + 3)
print(7 > 5 )
print(4 < 3 )
print(22 != 78 )
print([4, 9] == [4, 9] )
print("Ban" == "Tank" )


Python And Operator

These are all Boolean expressions since they all have a True or False return value. And keyword can be used to combine them to construct compound expressions that test two or more sub expressions simultaneously:


print(6 > 3 and 6 == 3 + 3)
print(7 < 2 and 7 == 7)
print(4 == 4 and 9 != 9)
print(3 < 2 and 6 != 6)


Python And Operator

In this case, combining two True expressions yields another True expression. All other combinations give False results. These examples show that the syntax for building compound Boolean expressions using and operator is as follows:

expression1 and expression2

If both expressions 1 and 2 evaluate as True, the compound expression is True. If at least one subexpression evaluates to False, the result is False.

When creating a compound expression, there is no restriction on how many and operators you can employ. This indicates that you can combine more than two subexpressions in a single expression by using multiple and operators:


print(7 > 3 and 7 == 3 + 4 and 8 != 3)
print(8 < 3 and 0 == 3 and 5 != 4)


Python And Operator

Once more, you get True if the evaluation of all the sub expressions is True. If not, you receive False. It would be best if you remembered that Python evaluates the expressions progressively from left to right, especially as the expressions grow longer.

Short-Circuiting the Evaluation

  • The logical operators 'and' and 'or' in Python employ a technique known as short-circuit evaluation, also referred to as lazy evaluation. The operand on the right is only evaluated by Python when it is necessary, to put it another way.
  • Python determines the final result after evaluating the left operand of the and expression. If it is false, the entire expression is false. In this instance, it is not necessary to evaluate the operand on the right. Python is already aware of the outcome.
  • The entire expression is inherently false if the left operand is false. Evaluating the final operand would be a waste of CPU time. Python avoids this by stopping the evaluation midway through.
  • • The right operand is only evaluated by and operator, in contrast, if the first operand is true. The truth value of the right operand, in this instance, determines the outcome. The entire expression is true if it is true. Otherwise, the statement is untrue.
  • Check out the examples below to see how the short-circuiting feature works:


def true_function():
 print("Running true_function()")
 return True
def false_function():
 print("Running false_function()")
 return False
print(true_function() and false_function())
print(false_function() and true_function())
print(false_function() and false_function())
print(true_function() and true_function())


Python And Operator
  • And operator behaves lazily in the first expression as predicted. The second function is not evaluated because the outcome of the first function's evaluation is false. Although the first function returns False in the second statement, the bitwise AND operator (&) eagerly performs both functions. Take note that the outcome is False in both situations.

Using Python and Operator with Common Objects

Use and operator to combine two Python objects into a single expression. In that case, Python's internal bool() function is used to determine the operands' truth values. You consequently receive a particular object rather than a Boolean value. Only when an operand explicitly evaluates to True or False do you receive True or False:


print(3 and 4)
print(6 and 0.0)
print([] and 5)
print(0 and {})
print(False and "")


Python And Operator

In these instances, if the and expression evaluates to False, it returns the operand on the left. If not, the operand on the right is returned. And operator determines an object's truth value using internal Python rules to produce these results.

  • Here is a summary of how the and operator behaves when applied to ordinary Python objects instead of Boolean expressions. Note that Python determines the outcome by using the truth value of each object:
object1object2object1 and object2

Generally, if an and expression's operands are objects rather than Boolean expressions, the operator yields the object on the left if the expression evaluates to False. The item on the right is still returned even if it evaluates to False.

Mixing Boolean Expressions and Objects

Additionally, you can use an and expression to combine Boolean statements with typical Python objects. The and expression continues to return the left operand if that condition is true; otherwise, it returns the right operand. Depending on which component of the expression yields that result, the returned value could either be True, False or an ordinary object:


print(6 < 7 and 6)
print( 6 and 6 < 7)
print( 4 < 6 and [])
print([] and 4 < 6)
print(7 > 11 and {})
print({} and 7 > 11)
print(6 > 9 and 5)
print(5 and 6 > 9)


Python And Operator

These examples combine the use of common objects and Boolean expressions. You can see that for each set of examples; you can either get a non-Boolean object or a Boolean value, either True or False. Which component of the expression yields the final result will determine the outcome.

Here is a table summarizing how and operator behaves when Boolean expressions and specific Python objects are used together:

expressionobjectexpression and object
  • Python calculates the result by evaluating the Boolean expression on the left and obtaining its Boolean value (True or False). The truth value of the object on the right is then determined by Python using its internal rules.

Combining Logical Operators in Python

  • Python also provides or operator and the not operator as additional logical operators.
  • They can be combined with and operator to form more sophisticated compound expressions.
  • The precedence of each logical operator must be considered when creating accurate and understandable expressions using numerous logical operators. To put it another way, you must consider the order in which Python executes them.

Compared to other operators, the logical operators in Python have low precedence. To achieve a consistent and readable outcome, it's advisable to employ a pair of parentheses (()) occasionally:


print(6 or 3 and 7 > 1)
print((6 or 4) and 7 > 1)


Python And Operator
  • In these instances, a compound phrase is created by combining the 'or' and 'and' operators. Or operator takes advantage of short-circuit evaluation, just like and operator. Or operator, in contrast to and, terminates when it encounters a valid operand. This is seen in the first illustration. Or sub expression returns 6 immediately without assessing the rest of the expression because 6 is true.
  • Or sub expression, however, operates as a single true operand when enclosed in a pair of parentheses, and 7> 1 is also evaluated. The conclusion is True.

Using Python and Operator in Boolean Contexts

And operator, like all of Python's Boolean operators, is particularly helpful in Boolean settings. Most Boolean operators' real-world usage cases can be found in Boolean settings.

Boolean Contexts are defined by Two Primary Structures in Python:

  1. If statements: Let you perform conditional execution and take different courses of action based on the result of some initial conditions.
  2. While statement: Allow you to do repetitive operations while a certain condition is true and perform conditional iteration.

What you might refer to as control flow statements include these two forms. They aid in determining the course of your program’s execution.

In both if statements and while loops, you can create compound Boolean expressions using Python's and operator.

  • while Loops
    The second structure that allows and expressions to be used to control how a program is executed is the while loop. The while statement header's 'and' operator enables you to test several assumptions and continue the loop's code block until all assumptions are satisfied.


from time import sleep
from random import randint

def control_pressure():
    pressure = measure_pressure()
    while True:
        if pressure <= 500:

        while pressure > 500 and pressure <= 700:
          pressure = measure_pressure()

        while pressure > 700:
            pressure = measure_pressure()

    print("Wow! The system is safe...")

def measure_pressure():
    pressure = randint(490, 800)
    print(f"psi={pressure}", end="; ")
    return pressure

def run_standard_safeties():
    print("Running standard safeties...")

def run_critical_safeties():
    print("Running critical safeties...")

if __name__ == "__main__":


Python And Operator

On line 8 of control pressure(), you add an endless while loop. The conditional statement exits the loop, and the program is completed if the system is stable and the pressure is less than 500 psi.

Line 12 has a first nested while loop that executes the regular safety procedures while maintaining a system pressure of between 500 and 700 psi. The loop receives a new pressure measurement after each iteration to retest the situation. The second loop on line 16 executes the crucial safety measures if the pressure exceeds 700 psi.

  • If Statements
  • Boolean expressions are frequently referred to as conditions since they frequently suggest the necessity of fulfilling a specific criterion.
  • They are quite helpful when used with conditional statements. Such a sentence starts with the Python keyword if and goes on to include a condition.
  • Conditional statements may also contain elif and else clauses.
    The logic of conditionals in English grammar is followed by conditional statements in Python. If code block runs if the condition is met. If not, the execution moves on to another code block:


x = -11
if x < 0:
 print("x is negative")
elif x > 0:
 print("x is positive")
 print("x is equal to 0")


Python And Operator
  • The statement "x<  0" is true because it contains a negative value. The if code block executes, and the screen displays the message "x is negative." However, if you alter the value of a to a positive number, the elif block will activate, and Python will print that it is positive. Lastly, if you set a to zero, the else code block executes. Try different things and see what happens.
  • Let's imagine that before running a certain piece of code, you want to confirm that two criteria are satisfied—that is, they are both true.


age = int(input("enter your age: " ))
if age >= 0 and age <= 9:
 print("You are a child!")
elif age > 9 and age <= 18:
 print("You are an adolescent!")
elif age > 18 and age <= 65:
 print("You are an adult!")
elif age > 65:
 print("Golden ages!")


Python And Operator
  • Here, input() is used to obtain the user's age, and int is used to convert it to an integer value (). It is used to determine whether age is higher than or equal to 0. The same clause determines if the applicant's age is nine or less. You construct a composite Boolean expression to accomplish this.
  • To establish the life stage related to the user's age, the three elif clauses examine other intervals.

    The script follows one of two paths depending on the age you specify at the command line. In this example, if you enter 25 as your age, the phrase "You are an adult!" appears on your screen.