Python Accessing elements of dictionary-all keys() all values() all items()

Python Accessing elements of dictionary-all keys() all values() all items() 

#Accessing elements of dictionary

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

print(emp['empname'])    #access value using name

print(emp.get('salary')) #get key value using key name in get function

#get all keys and values

#keys(): return the list of all keys in present dictionary

#ex:

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

print(emp.keys())

print(type(emp.keys()))

#values():return the list of all values in present dictionary

#ex:

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

print(emp.values())

print(type(emp.values()))

#items():return all the items present in the dictionary. each item will be inside a tuple as a      key-value pair.

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

print(emp.items())

print(type(emp.items()))

#Iterating a dictionary:

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

for x in emp:

    print(x)

note:it will display only keys

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

print('key', ':', 'value')

for key in emp:

    print(key, ':', emp[key])

# using items() method

print('key', ':', 'value')

for key_value in emp.items():

    print(key_value[0], key_value[1])

#find the length of the dictionary

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

print(len(emp))

#adding new keys in dictionary 

emp={"empname":"krishna","jobdesc":"software programmer","salary":34000}

emp["empno"]=101 #single item adding

print(emp)

emp.update({"doj":"12/09/2022","company":"google"})

print(emp)

#python dictionary,#dictionary keys(),#dictionary values(),#dictionary items(),
#python datatypes,#python dict(),#dictionary accessing elements,#all keys(),#all vlaues(), #all items()