Python articles

MongoDB: How to Insert Documents Only If They Don't Already Exist

In the world of databases, especially when working with NoSQL databases like MongoDB, one common task is to insert documents into a collection only if they don't already exist. This operation helps maintain data integrity and avoids duplicate entries, which […] Read more…

How to Fix Common Conda Install and Update Issues

If you're a developer working with Python, chances are you've encountered issues with Conda at some point. Conda is an incredibly powerful package manager and environment management system that allows you to install, run, and update packages and their dependencies. […] Read more…

How to Convert an Image from PIL to OpenCV Format in Python

When working with images in Python, you might find yourself needing to switch between different libraries depending on the task at hand. Two of the most popular libraries for image processing are PIL (Python Imaging Library, often used through its […] Read more…

Understanding the Use of Asterisks in Python Function Calls

In the world of Python programming, asterisks (*) play a significant role, especially when dealing with function calls. These symbols might seem perplexing at first, but they are incredibly powerful tools for creating flexible and efficient code. In this post, we'll […] Read more…

How to Determine Image Size with Python and OpenCV

In the world of digital imaging, understanding the dimensions of an image is a fundamental task that can be essential for various applications, from basic photo editing to advanced computer vision projects. Python, with its rich ecosystem of libraries, offers […] Read more…

A Beginner's Guide to Simple Digit Recognition with OpenCV and Python

Digit recognition, a subset of optical character recognition (OCR), is a fascinating area of computer vision that focuses on recognizing numbers from images. It's a technology that powers numerous applications, from sorting mail to digitizing handwritten documents. Python, with its […] Read more…

Displaying an Image in Python Using OpenCV

In the world of programming, particularly in the field of image processing, displaying an image is a fundamental task. Python, with its simplicity and vast library ecosystem, offers an excellent platform for such tasks. One of the most popular libraries […] Read more…

How to Normalize a 2-Dimensional Numpy Array in Python

In data processing and machine learning, normalizing data is a common task. Normalization helps in adjusting the values in the dataset to a common scale without distorting differences in the ranges of values. For those working with Python, especially in […] Read more…

How to Convert an Numpy Array from Float64 to Uint8 by Scaling Values

When working with image data or any dataset that requires normalization, it's common to encounter the need to convert an array from one data type to another. Specifically, converting a NumPy array from float64 to uint8 is a frequent task […] Read more…

Solving Python's "Cannot Find Reference" Error in `__init__.py`

When working with Python, especially in larger projects with multiple packages, encountering the "Cannot Find Reference" error can be a common yet frustrating experience. This error typically occurs when the Python interpreter fails to locate a module or its attributes […] Read more…