Python 2 Functions

Functions

 def hello():  
   print("Hello functions")  
 hello()  

Functions with Parameters

 def add(i, j):  
   return i + j  
 print(add(12, 23))  

Exception Handling

 try:  
   i = int(input("Enter value 1 : "))  
   j = int(input("Enter value 2 : "))  
   res = i / j  
   print(res)  
 except ValueError:  
   print("Invalid Input")  
 except ZeroDivisionError:  
   print("Cannot divide by zero")  

 def divide():  
   try:  
     i = int(input("Enter value 1 : "))  
     j = int(input("Enter value 2 : "))   
     res = i / j  
     print(res)  
   except ValueError:  
     print("Invalid Input")  
   except ZeroDivisionError:  
     print("Cannot divide by zero")  


 divide()  

Python

print

 print("Hello Python")  

Memory Variable

 name = "Shalvin P D"  
 print("Hello ", name)  

Multiple assignments

 name, passion = "Shalvin", "IT"  
 print(f"{name} - {passion}")  

input

 name = input("Enter your name : ")  
 print("Hello ", name)  

int()

 i = int(input("Enter value 1 : "))  
 j = int(input("Enter value 2 : "))  
 res = i + j  
 print(res)  

float()

 i = float(input("Enter value 1 : "))  
 j = float(input("Enter value 2 : "))  
 res = i + j  
 print(res)  

Lists

 technologies = [".Net", "Python", "Angular"]  
 for tech in technologies:  
   print(tech)  

Lists append()

 technologies = [".Net", "Python", "Angular"]  
 technologies.append("C#")  
 for tech in technologies:  
   print(tech)  

Lists remove()

 technologies = [".Net", "Python", "Angular", "C#", "PHP"]  
 technologies.remove("PHP")  
 for tech in technologies:  
   print(tech)  

Lists Concatenation

technologies1 = [".Net", "Python", "Angular", "C#"]

technologies2 = ["DevOps", "Jenkins"]

technologies = technologies1 + technologies2

for tech in technologies:
    print(tech)

Dictionary

 contact = {"name" : "Shalvin", "location": "Kochi"}  
 print(contact)  
 print(contact["name"])  
 print(f'{contact["name"]} : {contact["location"]}')  

List of Dictionaries

 contacts = [{"name" : "Shalvin", "location": "Kochi"},  
       {"name": "Praseed", "location": "UK"}]  
 print(contacts)  
 first_contact = contacts[0]  
 print(first_contact)  
 print(f"{first_contact['name']} - {first_contact['location']}")  
 

 print("Listing all contacts")  
 for contact in contacts:  
   print(f"{contact['name']} - {contact['location']}")