❤💛💙What is a Variable?
Variables are used to store information to be referenced and manipulated in a computer program. They also provide a way of labeling data with a descriptive name, so our programs can be understood more clearly by the reader and ourselves. It is helpful to think of variables as containers that hold information. Their sole purpose is to label and store data in memory. This data can then be used throughout your program.🧡💚💜

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DATA TYPES
Variables come in all shapes and sizes. Some are used to store numbers, some are used to store text and some are used for much more complicated types of data.

*⃣The data types to know are:

⏺String (or str or text). Used for a combination of any characters that appear on a keyboard, such as letters, numbers and symbols.
*⃣Character (or char). Used for single letters.
⏹Integer (or int). Used for whole numbers.
⏺Float (or Real). Used for numbers that contain decimal points, or for fractions.
*⃣Boolean (or bool). Used where data is restricted to True/False or yes/no options.

*⃣⏺⏹ Different data types can occur in a real-life database example. In a film database, string links to title, float or real links to rating, integer links to times viewed and Boolean links to favourite.
In many programming languages variables must be declared before they can be used, for example:
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Visual Basic - dim score as int
Java – int score;
In some languages, such as Python, you can simply start using the variable without declaring it.
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WHY TO LEARN PYTHON?

🔴🔵Python is a high-level, interpreted, interactive and object-oriented scripting language. Python is designed to be highly readable. It uses English keywords frequently where as other languages use punctuation, and it has fewer syntactical constructions than other languages.⚫⚪

🔺🔻Python is a MUST for students and working professionals to become a great Software Engineer specially when they are working in Web Development Domain. I will list down some of the key advantages of learning Python:🔻🔺

☑☑☑ Python is Interpreted − Python is processed at runtime by the interpreter. You do not need to compile your program before executing it. This is similar to PERL and PHP.

☑☑☑ Python is Interactive − You can actually sit at a Python prompt and interact with the interpreter directly to write your programs.

☑☑☑ Python is Object-Oriented − Python supports Object-Oriented style or technique of programming that encapsulates code within objects.

☑☑☑ Python is a Beginner's Language − Python is a great language for the beginner-level programmers and supports the development of a wide range of applications from simple text processing to WWW browsers to games.

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🔴Characteristics of Python
Following are important characteristics of Python Programming −

✔It supports functional and structured programming methods as well as OOP.

✔It can be used as a scripting language or can be compiled to byte-code for building large applications.

✔It provides very high-level dynamic data types and supports dynamic type checking.

✔It supports automatic garbage collection.

✔It can be easily integrated with C, C++, COM, ActiveX, CORBA, and Java.
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✅⭕Applications of Python⭕✅

🔷🔶As mentioned before, Python is one of the most widely used language over the web. I'm going to list few of them here:

🔹Easy-to-learn − Python has few keywords, simple structure, and a clearly defined syntax. This allows the student to pick up the language quickly.🔸

🔸Easy-to-read − Python code is more clearly defined and visible to the eyes.🔹

🔹Easy-to-maintain − Python's source code is fairly easy-to-maintain.🔸

🔸A broad standard library − Python's bulk of the library is very portable and cross-platform compatible on UNIX, Windows, and Macintosh.🔹

🔹Interactive Mode − Python has support for an interactive mode which allows interactive testing and debugging of snippets of code.🔸

🔸Portable − Python can run on a wide variety of hardware platforms and has the same interface on all platforms.🔹

🔹Extendable − You can add low-level modules to the Python interpreter. These modules enable programmers to add to or customize their tools to be more efficient.🔸

🔸Databases − Python provides interfaces to all major commercial databases.🔹

🔹GUI Programming − Python supports GUI applications that can be created and ported to many system calls, libraries and windows systems, such as Windows MFC, Macintosh, and the X Window system of Unix.🔸

🔹Scalable − Python provides a better structure and support for large programs than shell scripting.🔸
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👨‍💻How to download Python On Windows👩‍💻

✅Here are the steps to install Python on Windows machine.

1⃣Open a Web browser and go to https://www.python.org/downloads/.

2⃣Follow the link for the Windows installer python-XYZ.msi file where XYZ is the version you need to install.

3⃣To use this installer python-XYZ.msi, the Windows system must support Microsoft Installer 2.0. Save the installer file to your local machine and then run it to find out if your machine supports MSI.

4⃣Run the downloaded file. This brings up the Python install wizard, which is really easy to use. Just accept the default settings, wait until the install is finished, and you are done.

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👩‍💻Python Install
Many PCs and Macs will have python already installed.👨‍💻

💻To check if you have python installed on a Windows PC, search in the start bar for Python or run the following on the Command Line (cmd.exe):

🖥C:\Users\Your Name>python --version
📲To check if you have python installed on a Linux or Mac, then on linux open the command line or on Mac open the Terminal and type:

python --version
⬇⬇⬇If you find that you do not have python installed on your computer, then you can download it for free from the following website: https://www.python.org/

🖱⌨Python Quickstart
Python is an interpreted programming language, this means that as a developer you write Python (.py) files in a text editor and then put those files into the python interpreter to be executed.⌨🖱

💽💾The way to run a python file is like this on the command line:

C:\Users\Your Name>python helloworld.py
Where "helloworld.py" is the name of your python file.

🖥Let's write our first Python file, called helloworld.py, which can be done in any text editor.🖥

helloworld.py

🖨 print("Hello, World!") 🖨
Simple as that. Save your file. Open your command line, navigate to the directory where you saved your file, and run:

💾C:\Users\Your Name>python helloworld.py💾

⬇The output should read:⬇

Hello, World!
🎉🎉🎉Congratulations, you have written and executed your first Python program.🏆🏆
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Python Tutorial - Python for Beginners [Full Course]

❇️How to Enable Desktop Notifications for Gmail in Windows 10.
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⚜ We will be sharing a detailed guide on how to enable desktop notifications for Gmail. Let’s check out.

🔹Step 1: First of all, open Google Chrome browser on login with your Gmail account.

🔹Step 2: On the Gmail account, tap on the ‘Gear’ icon.

🔹Step 3: Next, click on the ‘See all Settings’ option.

🔹Step 4: Under the ‘General’ tab, scroll down and find the ‘Desktop Notifications’ section.

🔹Step 5: Now you need to enable the option ‘New mail notifications on.’ You can even select the ‘Important mail notifications on’ if you want Gmail to notify only when an important message arrives in your inbox.

🔹Step 6: Once done, click on the option ‘Click here to enable desktop notifications for Gmail’.

🔹Step 7: Now on the popup, select ‘Allow.’

❗️Note: If you are not receiving the desktop notifications, you need to enable Google Chrome’s notification from the app settings. For that open Settings > System > Notifications & Actions > Google Chrome. Make sure that the notifications were turned on.

✅ That’s it! You are done. This is how you can enable desktop notifications for Gmail.

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