Build practical Python command-line tools with argparse. This beginner tutorial covers required arguments, optional flags, validation, file processing, and helpful CLI output.
Build a Command-Line Interface in Python with argparse Read More »
Practice Python regex techniques for finding email addresses in logs, validating email-like input, and avoiding common matching mistakes.
Regular Expressions in Python: Extracting and Validating Email Addresses Read More »
Learn to create Python dates and date-time values, calculate due dates with timedelta, format readable output, and build a simple appointment schedule.
Working with Dates and Times in Python Read More »
Set up an isolated Python project with venv and pip. Install Flask, record dependencies in requirements.txt, and run a simple local web application.
Python Virtual Environments: Install Packages with pip Read More »
Learn Python file handling by reading application logs, counting message types, and writing summary or filtered reports to new text files.
Reading and Writing Text Files in Python Read More »
Learn to save Python dictionaries as JSON settings files, load them back into your program, and safely use default settings when files are missing or invalid.
How to Read and Write JSON Files in Python Read More »
Use Python sets to remove duplicate email addresses, combine signup data, and display unique values in a predictable order.
Python Sets: Remove Duplicate Email Addresses Read More »
Learn the basics of Python list comprehensions by filtering product prices and selecting items that meet budget and availability conditions.
Python List Comprehensions: Filter Values from a List Read More »
Build safer Python programs by catching invalid input, validating converted values, and retrying user prompts without crashing.
Handle Invalid User Input with Python Exception Handling Read More »
Learn how to pass values into Python functions using positional and keyword arguments, return calculated results, and build reusable order total calculations.
Python Function Arguments: Passing Values into Functions Read More »
