Want to learn Python? Check out all the Python tutorials on PythonGuides.com. All these tutorials are written by Python experts with practical and real examples. Talk with our experts if you still have questions.
As a Python Keras developer with over four years of experience, I’ve seen how Transformer models revolutionized natural language processing and are now reshaping computer vision tasks. Among these, the Swin Transformer stands out for its ability to efficiently capture both local and global image features, making it a powerful tool for image classification. In … Read more >>
I’ve spent years working with Keras to build efficient deep learning models, and one challenge I often face is training image classifiers with limited labeled data. Semi-supervised learning, combined with contrastive pretraining, offers a powerful solution. In this tutorial, I’ll walk you through how to use SimCLR, a popular contrastive learning framework, to pretrain your … Read more >>
Recently, I was working on a project where I had to train a model to recognise new categories with very little data. The issue is that deep learning models usually need thousands of examples to learn anything useful. So we need a workaround that allows our model to learn fast, just like a human can … Read more >>
I remember debugging a data pipeline for a large logistics company. The system was crashing randomly, throwing type errors that made no sense at first glance. After hours of digging, I realized the issue wasn’t the logic; it was the data types. Some legacy sensors were sending raw binary data (bytes), while newer APIs were … Read more >>
To check if a string is empty in Python, use if not s:. An empty string “” is “falsy”, so not s is True only when the string has no characters. If a string with only spaces should also count as empty, use if not s.strip():. This guide compares every way to check, and covers … Read more >>
To check if a variable is empty in Python, use if not x:. It is True for None, “”, [], {}, set(), (), 0, 0.0 and False. To check for “no value” (what other languages call null), use if x is None:, which is True only for None. Which one you need depends on whether … Read more >>
I still remember the panic I felt during a database migration for a large US healthcare provider when a “Zip Code” column caused the entire pipeline to crash. It was a rookie mistake that taught me a valuable lesson about Python’s dynamic typing system: never assume your data is what you think it is. I … Read more >>
A boolean in Python is a value that is either True or False, and nothing else: Both must be capitalised. Lowercase true is just an undefined name, so it raises a NameError. The trap worth knowing before anything else: bool(“False”) is True, because any non-empty string is truthy. Everything on this page was run on … Read more >>
In this tutorial, I will show you how to add two variables in Python. Adding variables is perhaps the most fundamental operation I perform in my daily coding routine. Whether I am calculating financial data or merging user lists, understanding how Python handles addition is critical. I have spent over a decade building software, and … Read more >>
While working on a Python data visualization project, I needed to create a 3D scatter plot that looked more realistic and visually appealing. The challenge was that when I customized the colors of each data point, the natural depth effect, the shading that makes closer points appear brighter, disappeared. If you’ve ever worked with 3D … Read more >>
Free PDF · 112 pages
Tell me where to send it and the free 112-page PDF is on its way.
Your free 51 Python Programs PDF is on its way to . Can't find it in a few minutes? Look in your Promotions or Spam folder.