Create new dictionary from a list of keys in Python

Dictionaries - Question 4

A dictionary and a list are given below as:

    a={'english':56, 'maths':84, 'physics':92, 'computer':76, 'history':87}
    b=['maths','computer','physics']

Q4) Write a program in Python to create a new dictionary from the dictionary a having the keys contains in the list b. The output should be:

    {'maths': 84, 'computer': 76, 'physics': 92}

a={'english':56, 'maths':84, 'physics':92, 'computer':76, 'history':87}
b=['maths','computer','physics']

print('Dictionary a:',a)
print('List b:',b)
c=dict()

for i in range(len(b)):
    x=a.get(b[i])

    if x!='None':
        c[b[i]]=x

print('Dictionary c:',c)

Dictionary a: {'english': 56, 'maths': 84, 'physics': 92, 'computer': 76, 'history': 87}
List b: ['maths', 'computer', 'physics']
Dictionary c: {'maths': 84, 'computer': 76, 'physics': 92}