CODEWITHSUNDEEP
python
rand101
rand101

Reputation: 11

Why does the three methods of reversing used not give the expected output?

As the title says, I have the following array,

arr = [7, 69, 2, 221, 8974]

I then reverse it using either of the following methods

In [01]: arr[::-1]
Out[01]: [8974, 221, 2, 69, 7]

Using .reverse()

In [01]: arr.reverse()

In [02]: print(arr)
Out[02]: [8974, 221, 2, 69, 7]

Using reversed(arr)

In [01]: list(reversed(arr))
Out[01]: [8974, 221, 2, 69, 7]

Clearly in all instances the output should be [8974, 221, 69, 7, 2]

I am using Python 3.9.5. Does anyone know why this behaviour is observed?

Upvotes: 0

Views: 46

Answers (1)

SAI SANTOSH CHIRAG
SAI SANTOSH CHIRAG

Reputation: 2084

I think you want your output to be sorted. You can try code in this way:

arr = [7, 69, 2, 221, 8974]
sorted(arr,reversed=True)

Using .reverse()

In [01]: arr.sort().reverse()

In [02]: print(arr)
Out[02]: [8974, 221, 2, 69, 7]

Using reversed(arr)

In [01]: list(reversed(sorted(arr)))
Out[01]: [8974, 221, 2, 69, 7]

Upvotes: 5

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