How To Declare Array In Python?

Use a list: `arr = [1, 2, 3]`

Use an empty list: `arr = []`

Use the `list()` constructor: `arr = list()`

Create a list with repeated values: `arr = [0] * 5`

Create a list of strings: `arr = [“a”, “b”, “c”]`

Create a 2D array: `arr = [[1, 2], [3, 4]]`

Use `array` from the `array` module: `from array import array`

Declare a typed array: `arr = array(‘i’, [1, 2, 3])`

Use NumPy arrays: `import numpy as np`

Declare a NumPy array: `arr = np.array([1, 2, 3])`