How to define an array in Python and how an array is different from a list?

Question

I found that notation for array and list is same in python, but performing operation like
a=array([1,2,3])
a/2
didn't works as same ...

Answer 1

Install NumPy: https://scipy.org/install.html

Creating an array:
import numpy as np
myArray = np.array([1,2,3])

List pros:
- flexible
- can be heterogeneous

Array pros:
- array of uniform values
- homogeneous
- compact (in size)
- efficient (functionality and speed)
- convenient