python initialize array

1array = ["1st", "2nd", "3rd"]
2#prints: ['1st', '2nd', '3rd']
3array.append("4th")
4#prints: ['1st', '2nd', '3rd', '4th']

1array1 = [] #an empty array
2array2 = list() #another empty arrat
3array3 = ["1", "2", "3"] #array initialization with value
4arrat4 = [x for x in range(1,11) #list comprehension