Both python arrays and list have many simillarities like they both are mutable, i.e. the content of both can be changed

they differ with respect to the following
Python arrays are used when we have to store homogenous type of data
whereas List are used when we need to store hetrogenous kind of data

Example

#Array
arr=array[(1,2,3),(1,2,3)]
#list
list=[1,2,3,4,5,6]

one major differnce between the two can be seen by the following example

from array import array
if __name__=="__main__":
    arr=array([1,2,3,4,5])
    list=[1,2,3,4,5]
 #this will not result into an error
 print(arr/5) 
 #this will result into an TypeError: array() argument 1 must be a unicode character, not list
 print(list/5)

Array : It is collection of variables represented by a common name with a common datatype.The variables are stored contineuosly.
So it has element and index which is started from 0.
example array(‘d’, [1.0, 2.0, 3.14])
Here it is double type
for more …..
https://docs.python.org/3/library/array.html

list with mixed datatypes

my_list = [1, “Hello”, 3.4]