Why and where Python?
Tags: python, codenewbie, webdev, datascience
Published: 2020-05-12 19:09:48

If you have started learning Python or just Learned the programming language, you should have probably wondered “Where in the world should I use Python while there are other Programming Languages?” — Let's find out the answer.

## Some reasons why Python is widely used,

1. Python is Interpreted
2. You need not compile Python Code
3. Python is Interactive
4. It has support for Object-Oriented Programming & Functional Programming too
5. Readability at its heights
6. Support of in-built libraries

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## 3 Major downfalls of Python Language

1. Python is slow
2. Python doesn't support app development
3. Desktop apps build with Python isn't that rich

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## The three main applications of Python

1. Data Science
2. Web Development
3. Scripting & Other uses like GUI, Gaming, and embedded systems.

### 1. Data Science

Data science is using data to get inferences or predictions from it.

**But why Python?**
So there are lots of numerical computations. Though it seems like it could be implemented in any other language ( which is actually true ), doing the same in Python is easier. Why? The reason is that you have a lot of libraries ( pre-written set of codes that have functions and methods which could be used to write faster code with probably better space and time efficiency ) in python.

**So you can apply the numerical concepts to**

- Recommender Systems ( Netflix, Amazon, YouTube rules using this concept )
- The Google and Siri Digital Assistants
- The Face unlocking feature (though it may seem more of hardware-oriented)
- Email Spam detection

**What is the other cool thing about Python and Data Science?**
You can plot colorful graphs. Yes, using libraries like matplotlib visualize data and continue with your further analysis. You can easily plot Pie Charts, Bar Charts, Line charts, Normal Plots, Grouping & Clustering, and lots of other Data Analysis stuff in less than 5 lines of code ( Only the Plotting ).

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### 2. Web Development

This is probably the most exciting section for web Developers ( smile ). Yes, Python has two popular Web Frameworks called Django and Flask. Of course Web2Py for honourary mentions.

**What are Django and Flask used for?**
They are web frameworks that are used to write server-side code ( Backend ) using Python. If you do not understand what I mean, this just means that they are used to write the instructions which for instance verifies your Username and Password match by taking the input from you and searches the storage for the correct Password and compare the True Password and the entered Password ) and such background works.

**Now why can’t I use my own code for that?**
Of course you may, but why do you wanna re-invent the wheel? These web frameworks make it easy to build common backend logics, communicate with the database, generate HTML files that users see on their browsers.

**Django vs Flask**

**Django** — If you have planned to build a mail service/blog / e-commerce website, where you have an admin interface.
**Flask** — If you build something creative and want more flexibility in each component you use. If you want to build a REST API service. Easier to learn than Django.

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### 3. Scripting and Others

Scripting here refers to writing programs that automate tasks. (mostly repetitive )

Let's look at examples,

- If you have a set of URLs that need to be **opened at certain intervals**, maybe to test the website. You can do that using small scripts in Python.
- **Selenium** for Python lets you automate browsing or performing tasks on Websites.
- If you want to **filter the email** containing certain keywords in their subjects, you can do that.
- If you want to automatically go through the web starting from a single web page automatically and collect only certain information from them and store them, Yes you can do that, called **Web Scraping.**
- You can use Python for **embedded systems** like the Raspberry Pi.
- You can use **PyGame** to develop games.
- You can build Desktop Applications using **Tkinter**, Python for GUI.

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### Conclusion

So these are the most popular uses of Python and Probably the reasons why Python is popular today. Some of my views may differ from yours which is totally fine. At the end of the day, Every Language has its own purpose out there

Just choose the appropriate programming language for your application based on how the application is going to perform and it's domain requirements. No programming language is better than others, each one has its purpose.

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> Article Originally written at https://tharunshiv.com

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