Python Change Element in Array [Duplicate]

Name: Python Change Element in Array [Duplicate]
Uploaded: 2026-09-29T08:21:27+00:00
Duration: 10 min 42 s
Description: How I Can Change Element in Array? I Have This Code, but I Expected That It Would Print [[5,5], [1,4]]. but It Wouldn't. It Still Prints [[1,2], [1,4]]. X =...

Question

How I can change element in array? I have this code, but I expected that it would print [[5,5],[1,4]]. But it wouldn't. It still prints [[1,2],[1,4]].

x = [[1,2], [1,4]]
for element in x:
    if element[1] == 2:
        element = [5,5]
print x

Accepted Answer

Change a list element requires an index.

list_object[index] = new_value

Using enumerate, you can iterate the list and get a indexes.

>>> x = [[1,2], [1,4]]
>>> for i, element in enumerate(x):
...     if element[1] == 2:
...         x[i] = [5,5]
...
>>> x
[[5, 5], [1, 4]]

Python Change Element in Array [Duplicate]

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1 Answer

Chloe Bennett