Python Basic Concepts Coding

Python 

Python is the most popular high-level language in 2023, mostly used for data science and machine learning.

 

1. Syntax (Output)

print("welcome")

2. Comments

Single line 

#first line comment

Multi line 

#multiple line comments

#first line comment

#second line comment

#third line comment

3. Variables

x = 10   

y = 10.5  

z = "welcome"  

print(x, y, z)

4. Arithmetic Operators

x = 9

y = 4

print (x+y)

5. Conditions

x = 15

if x >10:

    print("passed")

    print("passed")

    print("passed")

    print("passed")

else:

    print("failed")

    

    

print("out of if-else")

_______________________________________________

#Conditions/nested if-else(multiple conditions)

x = 100

if x <90:

    print("excelent")

    

elif x < 80:

    print("weldone")

    

elif x < 70:

    print("nice")

else:

    print("good")

    

    

print("out of if-else") #out of else-if

6. loops (while, for)

x = 1

while x < 5:

    print("Paksitan")

    x = x + 1   #x++

7. functions (code reusability)

def show(x ,y ):

    print(x+y)

show(5, 6)

show(3, 4)

show(8, 8)

8. OOP(obj, class, inheritance)

class A:

    x = 10

    y = 20

    def show(self):

        print (self.x) 

        print (self.y) 

        

ob = A()  #obj creation

ob.show()

9. Single Inheritance

class A:

    def showA(self):

        print("parent class A")

obj = A()

obj.showA()

10. Multiple Inheritance

class A:

    def showA(self):

        print("parent class A")

class B:

    def showB(self):

        print ("parnt B")

        

class C(A, B):

    def showC(self):

        print ("chidl C")

obj = C()

obj.showA()

obj.showB()

obj.showC()