Author: Ankit Rai

In this post, we will see a different ways to reverse array in Python. Let’s see the example first. Example: [crayon-67266e5a8bff0218329105/] As we know, Python language has not come up with an array data structure. So in python there are some ways to create an array like data structure. Some ways like: use list, use […]

In this article, we will see a different ways to initialize an array in Python. Array is collection of elements of same type. In Python, we can use Python list to represent an array. Using for loop, range() function and append() method of list Let’s see different ways to initiaze arrays Intialize empty array You […]

Learn about different ways to remove all occurrences or instances of a given element from the list in Python.

In this post, we will see 3 different methods to Reordering the columns of Pandas Dataframe : Using reindex method You can use DataFrame’s reindex() method to reorder columns of pandas DataFrame. You need to pass columns=[$list_of_columns] to reindex() method to reorder columns of Pandas DataFrame. [crayon-67266e5a8cf6b346734178/] Output : Given Dataframe : Name Gender Age […]

In this tutorial, We will see different ways of Creating a pandas Dataframe from Dictionary . Using a Dataframe() method of pandas. Example 1 : When we only pass a dictionary in DataFrame() method then it shows columns according to ascending order of their names . [crayon-67266e5a8d050871187862/] Output : [crayon-67266e5a8d054055784342/] Example 2 : If we […]

In this tutorial, We will see different ways of Creating a pandas Dataframe from List. You can use Dataframe() method of pandas library to convert list to DataFrame. so first we have to import pandas library into the python file using import statement. So let’s see the various examples on creating a Dataframe with the […]

In this tutorial, we are learning about what is OpenCv and how OpenCV is installed in windows/linux system. Introduction Have you ever seen Facebook’s auto-tag feature? Whenever you add an image on Facebook, it consequently labels those who are there within the image. Ever considered how that occurred. It happens all as a result of […]

In this tutorial, we will see how to display an image as an output using python by the use of open-cv which is exist as cv2 (computer vision) library. We can use imshow() method of cv2 library to display an image in a window. In order to use cv2 library, we need to import cv2 […]

In this tutorial, we will see how to save an image in your own system using python by using open-cv which exists as cv2 (computer vision) library. You can use imwrite() method of cv2 library to save an image on your system. To use cv2 library, you need to import cv2 library using import statement. […]