Hamilton Reis’ Post

🐍📺Check if a Python String Contains a Substring [Video] In this video course, you'll learn to check whether a string contains a substring. You'll also learn about idiomatic ways to inspect a substring further and search for substrings in pandas #python

Rules for declaring python veriables:- 1) Must start with letters (a-z, A-Z) or underscore _ 2)Must not start with numbers (1 to .... ) 3) Variables are case sensitive ( python and Python both are different) 4) We cannot use keywords as variables ( if, def, while ...) Variable declaration is main part of any program. First impression will be starting with it, so while declaring variables need to take care. #python #learn #fast #beginner #automation

Most Python beginners get confused with this. == vs = They look similar. But they are completely different. = → Assignment operator Used to store a value Example: x = 10 == → Comparison operator Used to compare values Example: x == 10 One stores value. One checks value. Understanding this small difference can save you from many errors. 👉 Did you know this difference before? #python #BluJayTechnologies #SoftwareCoaching #Series

I would like to share this moment with you: I have successfully published my first Python project. It is a simple cookbook and can be installed using the following link: https://lnkd.in/dQU_QQSA

🐍📰 Python 3's pathlib Module: Taming the File System How to effectively work with file system paths in Python 3 using the new "pathlib" module in the standard library #python

The most misunderstood line of code in Python🛑 if __name__ == "__main__" Most beginners copy-paste this without knowing what it actually does. If you've ever imported a file and had your entire script execute unexpectedly—this is why. In this 2-minute breakdown, I explain: ✅ What __name__ actually stores. ✅ Why your code runs differently when imported vs. executed. ✅ How to structure your scripts like a Senior Dev. Master the most misunderstood line in Python here: https://lnkd.in/e5gEGpYq #python #codingtips #backend #microlearn #pythonifnamemain

Python "Gotchas": Are you using mutable default arguments correctly? 🐍 In Python, default arguments are evaluated only once at the time of function definition, not every time the function is called. This can lead to unexpected "shared state" bugs that are a nightmare to debug in production. In this video, I break down: ✅ The common mistake with list=[] ✅ Why to=None is the industry standard fix ✅ How to write cleaner, bug-free Python code Have you ever been bitten by this specific Python behavior? Let’s discuss in the comments. #Python #SoftwareDevelopment #Programming #DataScience #CleanCode #TechTips

🐍📺 One of the most useful data structures in Python is the dictionary. In this video course, you’ll learn what a dictionary is, how dictionaries differ from lists and tuples, and how to define and use dictionaries in your own code #python

StepTrace is live. Learning Python is harder than it needs to be when you’re forced to guess what your code is doing. StepTrace helps beginners see Python run step by step — variables changing, loops moving, output appearing, and logic becoming easier to follow. The goal is simple: Make Python feel less confusing by turning execution into something visual. Try StepTrace here: https://steptrace.app #StepTrace #Python #LearnPython #CodingBeginner #EdTech

Python Clarity Series – Episode 22 Topic: == None vs is None 📌 Checking None the wrong way: if x == None: Works… but not recommended. 👉 Correct way: if x is None: 💡 Why? None is a singleton object 👉 is checks identity (correct here) 👉 == checks value 💡 Rule: Use is None, not == None This is considered best practice in Python. Small detail → Strong coding habit #PythonBestPractices #CleanCode #DeveloperThinking #python #clarityseries