File diff. How would you design it?

Question

Sigiloso · Accepted Answer

Hash.

Tomvolek · Answer

with open('some_file_1.txt', 'r') as file1:
    with open('some_file_2.txt', 'r') as file2:
        same = set(file1).intersection(file2)

same.discard('
')

with open('some_output_file.txt', 'w') as file_out:
    for line in same:
        file_out.write(line)

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