[Tutor] Removing values from a dictionary if they are present in a list

[ranjan das]

I have the following information

A={'g2': [4,5,3], 'g1': [1, 3]}

B=[2,3,5]

Now I want to remeove the elements in B if they are present (as values) in
dictionary A.

My expected solution is

A= {'g2': [4], 'g1': [1] }

I wrote the following piece of code which gives me thhe right code, but I am
sure there must be a much shorter and more elegant way of doing it. Please
suggest

reject_list=[]

for element in B:

    for key in A.keys():

        for i in range(len(A[key])):

            if element==A[key][i]:

                reject_list.append((key,A[key][i]))



print reject_list


for i in range(len(reject_list)):

    print (reject_list[i][0],reject_list[i][1])

    Index=A[reject_list[i][0]].index(reject_list[i][1])

    print (reject_list[i][0],reject_list[i][1],Index)

    del A[reject_list[i][0]][Index]


print A


result obtained:

{'g2': [4], 'g1': [1]}
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