d6.py

d={'name':'karthi',
   'age':7,
   'city':'chennai',
    }

#get(accessing using get method)
print(d.get("name")) # Output: karthi


#If key doesn't exists in the dictionary means ,returns None
print (d.get('rollno')) # Output: None


#default is mentioned.
print (d.get('rollno',"Not Available"))#Output:Not Available