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🔹 What is a Variable in Python? A variable in Python is a name that stores a value. Variables allow you to store and manipulate data in your program. ✅ Example of a variable: name = “Alice” # String variable age = 25 # Integer variable height = 5.7 # Float variable Here, name, age,…
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Python Identifiers & Reserved Keywords (Detailed Guide) 🔹 Identifiers in Python What is an Identifier? An identifier is the name used to identify variables, functions, classes, modules, and objects in Python. ✅ Examples of Identifiers: name = “Alice” # Variable identifier def add_numbers(): # Function identifier pass class Student: # Class identifier pass Rules for…
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In Python’s interactive mode (the Python Shell), you can execute command-line commands using the os and subprocess modules. 🔹 Method 1: Using os.system() The os.system() function allows you to run command-line commands directly from Python. Example: Running a Command import os os.system(“dir”) # Windows (Lists files in current directory) os.system(“ls”) # macOS/Linux ✅ This will…
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Python scripts (.py files) can be executed in different ways, depending on your operating system and setup. Here’s a step-by-step guide for running a Python file in Windows. 🔹 Step 1: Create a Python File Open any text editor (IDLE, Notepad++, VS Code, PyCharm, etc.). Write your Python code: print(“Hello, World!”) Save the file as…
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IDLE (Integrated Development and Learning Environment) is Python’s built-in editor and development environment. It’s simple and great for beginners who want to write and test Python code easily. 🔹 How to Open IDLE in Windows Install Python (if not installed already) from Python.org. Open IDLE: Press Win + S, type “IDLE”, and hit Enter. Or,…
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Setting up a local environment helps you manage Python projects efficiently. Follow these steps to create an isolated Python environment on Windows. Step 1: Install Python Download the latest version from Python’s official website. Run the installer and check the box “Add Python to PATH”. Verify installation in Command Prompt (CMD): python –version pip…
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Installing Python on Windows is easy and takes just a few minutes. Follow this guide to install the latest version of Python on your system. Step 1: Download Python Installer Go to the official Python website 🔗 https://www.python.org/downloads/windows/ Download the latest version Click the “Download Python 3.x.x” button. This will download an .exe (installer) file.…
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Python has evolved significantly since its initial release in 1991. The language has gone through multiple versions, each introducing new features and improvements. Below is a detailed timeline of Python versions, highlighting key changes and enhancements. 1. Python 1.x (1991 – 2000) 🟢 First official release of Python. 🔹 Python 1.0 (February 20, 1991) Created…
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Python is one of the most popular programming languages in the world, widely used in web development, data science, artificial intelligence, automation, and more. While Python has many strengths, it also has some weaknesses. Below is a detailed analysis of Python’s advantages and limitations. Strengths of Python (Why is Python so Popular?) 1. Easy to…
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Python is one of the most widely used programming languages today, known for its simplicity, readability, and versatility. It was created by Guido van Rossum in the late 1980s and officially released in 1991. Over the decades, Python has evolved significantly, becoming a dominant force in areas like web development, data science, machine learning, and…