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Giovanni Rodriguez
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Asked: 2022-04-22T02:33:51+00:00 In:

Subtract A List From Another List Python

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I am new to python. I need some suggestions on subtract a list from another list python. Will you help me? Thank you!

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Ideas for subtract a list from another list python: Python is a popular programming language widely used in scientific computing, data science and machine learning. It is one of the fastest languages on the market and has many third party libraries to help with specific tasks.

Here is a suggestion for you

c = [x for x in a if x not in b]
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2 Answers

  1. The truth is out there! 

     c = [x for x in a if x not in b]
    • 7

  2. To subtract, you need two lists of the same length. Each list includes elements that have the same type. Then, you can find the difference of these two lists at each index position.

    # Subtract list1 from list2 (find only items not in both lists)
list1 = [2, 2, 2]
list2 = [1, 1, 1]
difference = []   # initialization of result list
​
zip_object = zip(list1, list2)
​
for list1_i, list2_i in zip_object:
    difference.append(list1_i-list2_i) # append each difference to list
​
print(difference)
    • 5

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