To convert NumPy arrays to a Python list. We can convert the Numpy array to the list by 2 different methods, we can have a list of data elements that is converted from an array using these methods:
Using type casting to Converting Numpy array to list
Here we are creating a Numpy array using the np.array and printing the array before the conversion and after the conversion using Python typecasting to list using list() function.
Python3
# import moduleimport numpy as np# create arrayarr = np.array([1, 2, 4, 5])print("Before conversion: ", arr)print(type(arr))# Converting numpy to listarr = list(arr)print("\nAfter conversion: ", type(arr))print(arr) |
Output:
Before conversion: [1 2 4 5] <class 'numpy.ndarray'> After conversion: <class 'list'> [1, 2, 4, 5]
Using tolist() Converting Numpy array to list
Example 1: With one Dimensional Array
Python3
# import moduleimport numpy as np# create arrayprint("\nArray:")arr = np.array([1, 2, 4, 5]) print(arr)print(type(arr))# apply methodlis = arr.tolist()# display listprint("\nList:")print(lis)print(type(lis)) |
Output:
Example 2: With Multidimensional Array
Python3
# import moduleimport numpy as np# create arrayprint("\nArray:")arr = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])print(arr)print(type(arr))# apply methodlis = arr.tolist()# display listprint("\nList:")print(lis)print(type(lis)) |
Output:
