Manipulation the Dictionary

d={10: 'iprg' , 22: 'Nan', 33:'Kool',8: 'Jool','y': 89,'tt':'toy',7:90 }
for i in d:                                
  print i,d[i]    # printing all the values in Dictionary          
print '\n'
print d[8]  #printing values of the individual keys
print '\n'
print d['y']  #printing values of the individual keys
print '\n'
print d[7]  #printing values of the individual keys
print '\n'
d[33]='hello world'  #updating the key 33 with new value
d[22]='pythonforengineers'   #updating the key 22 with new value
for i in d:                                
  print i,d[i]    # printing all the updated values in Dictionary    
del d[10]     # deleting key:value pair using key value -> 10
print'\n Dictionary after deleting a value:\n', d
d.clear()   #clearing all values
print '\n Dictionary after clearing all values:', d
del d   # Removing the Dictionary
try:
  print d
except:
  print 'Some error has occurred'
 

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