sample_dict = {
  'Physics': 82,
  'Math': 65,
  'history': 75
}

print(min(sample_dict))

Math

sample_dict = {'a': 100, 'b': 200, 'c': 300}

x = sample_dict['b']

print(x , "present in a Dictionary")

200 present in a Dictionary

dict1 = {'Ten': 10, 'Twenty': 20, 'Thirty': 30}
dict2 = {'Thirty': 30, 'Fourty': 40, 'Fifty': 50}

dict1.update(dict2)
print(dict1)

{'Ten': 10, 'Twenty': 20, 'Thirty': 30, 'Fourty': 40, 'Fifty': 50}