Class - 12 CBSE Computer Science Important Output Questions 2025
Give the output of the following snippet:
import pickle
list1, list2 = [2, 3, 4, 5, 6, 7, 8, 9, 10], []
for i in list1:
if (i % 2 == 0 and i % 4 == 0):
list2.append(i)
f = open("bin.dat", "wb")
pickle.dump(list2, f)
f.close()
f = open("bin.dat", "rb")
data = pickle.load(f)
f.close()
for i in data:
print(i)
Python
Python Data Handling
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Answer
4
8
Working
The code imports pickle
module in Python. Initially, it creates two lists: list1
with numbers from 2 to 10 and list2
as an empty list. It then iterates through list1
and appends numbers divisible by both 2 and 4 to list2
. After that, it opens a binary file named "bin.dat" in write-binary mode ("wb") and uses pickle.dump()
to serialize list2
and write it to the file. The file is then closed. Later, the code opens the same file in read-binary mode ("rb") and uses pickle.load()
to deserialize the data from the file into the variable data
. Finally, it iterates through data
and prints each element, which in this case are the numbers from list2
that satisfy the conditions (divisible by both 2 and 4).
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