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Python - How to Append, Remove, and View Elements from an Array?

How to Append, Remove, and View Elements from an Array?

Append an Array in Python

from array import *

arr = array('i', [])
arr.append(0)
print(arr)
arr.append(1)
print(arr)
arr.append(2)
print(arr)
arr.append(3)
print(arr)

Output

array('i', [0, 1, 2, 3])

Remove Last Element from an Array in Python

from array import *

arr = array('i', [])
arr.append(0)
print(arr)
arr.append(1)
print(arr)
arr.append(2)
print(arr)
arr.append(3)
print(arr)

arr.pop()
print(arr)

Output

array('i', [0])
array('i', [0, 1])
array('i', [0, 1, 2])
array('i', [0, 1, 2, 3])
array('i', [0, 1, 2])

View an Element at Index from an Array in Python

from array import *

arr = array('i', [])
arr.append(0)
print(arr)
arr.append(1)
print(arr)
arr.append(2)
print(arr)
arr.append(3)
print(arr)

# View last
print(arr[-1])
# View first
print(arr[0])
# View third
print(arr[2])

Output

array('i', [0])
array('i', [0, 1])
array('i', [0, 1, 2])
array('i', [0, 1, 2, 3])
3
0
2

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