Python String Substring Check

🐍📰 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

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 Practice: Split & Join Strings I recently solved a basic yet important problem from HackerRank using Python. Problem: Given a string of space-separated words, split the string and join the words using a hyphen (-). Solution: def split_and_join(line): words = line.split(" ") # split string into list result = "-".join(words) # join list with hyphen return result if __name__ == '__main__': line = input() result = split_and_join(line) print(result) Key Concepts: split() → Converts a string into a list join() → Combines list elements into a string Clean function design for reusability if __name__ == '__main__' for proper execution structure Example: Input: this is a string Output: this-is-a-string What I learned: Even simple problems help build strong fundamentals in string manipulation and writing clean, structured Python code. #Python #CodingPractice #HackerRank #Programming #100DaysOfCode #LearningJourney

🐍📺 In this video course, you'll learn how to use the pathlib module to carry out file path operations with Python. These operations include creating, iterating over, searching for, moving, and deleting files and folders #python

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

Do you know the difference between @staticmethod and @classmethod in Python? Most beginners use one or the other without fully understanding why. @staticmethod does not receive any implicit argument. It belongs to the class only for organisational purposes — it could live anywhere, but it makes sense to keep it there. @classmethod receives the class itself as the first argument, conventionally called cls. This means it can access and modify class-level data. The rule is simple: if the method needs the class, use @classmethod. If it needs nothing, use @staticmethod. In the image below you can see both methods applied to the same class. validate_email does not need to know anything about the class — it just validates a string. increment_count needs access to user_count, which belongs to the class itself, not to any specific instance. 💭 Have you ever used one when you should have used the other? #Python #Backend #PythonDeveloper #BuildingInPublic #HKingsJourney

🐍📺 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

🐍📺 Using OrderedDict in Python [Video] In this video course, you'll learn Python's OrderedDict and how to use it in your code. You'll also learn the main differences between regular dictionaries and ordered dictionaries. #python

Evaluating Expressions in Python using eval() While practicing on HackerRank, I explored the power of Python’s built-in eval() function. *Problem Statement: Read a mathematical expression from input and evaluate its result. Solution: # Enter your code here. Read input from STDIN. Print output to STDOUT expression = input() print(eval(expression)) * How it works: input() takes the expression as a string (e.g., "3 + 5 * 2") eval() evaluates the string as a Python expression The result is printed directly Example: Input: 3 + 5 * 2 Output: 13 *Important Note: eval() is powerful but should be used carefully, as it can execute arbitrary code. It’s safe in controlled environments like coding platforms, but not recommended for untrusted input in real-world applications. -> Always exciting to learn how Python simplifies complex tasks with minimal code! #Python #HackerRank #CodingPractice #Programming #LearnToCode #100DaysOfCode