Top Reasons For Migrating Your App To Python 3

Posted By : Anirudh Bhardwaj | 13-Mar-2020

Top Reasons For Migrating Your App To Python 3

The previous version of Python i.e Python 2.7 has become outdated and is no longer supported. From the very beginning, the CPython core development community has been urging developers and website owners to migrate to Python 3. Finally on January 1, 2020, Python 2 reached its scheduled end of life (EOL) deadline. As a result, Python software foundation revoked support for all the previous versions, making it inevitable to migrate to Python 3. 


Now that we have a new version rolling out, you must be familiar with what Python 3 update brings to the table. In this blog post, we discuss the new features of Python 3.7 and what makes it better than all the previous versions.


Also read Understanding Machine Learning Algorithms In Python


Notable Changes In Python 3.7

Python 3.7 incorporates a number of attributes that make it different from all the previous versions of Python. Python software foundation has introduced several notable changes and updates to the latest version. Read further to know what these features are and what all benefits they provide.


The Print Function

In all versions of Python 3, print () is not a statement anymore. The print function has replaced the print statement with a given set of arguments. Talking about the syntax, Python 3 versions use a slightly different parenthesis as compared to their previous Python 2 counterparts. 


In Python 2 versions, the print statement was used as shown below:


print "John’s age is", 24


Whereas, in Python 3 versions, the print function is used as below:


print("John’s age is", 24)


Forced UTF-8 Mode

In previous Python versions, there have been several issues with the standard C locale that supported UTF-8 or ASCII characters. UTF-8 consists of 8-bit ASCII characters and 2-4 length characters. The forced UTF-8 mode introduced in Python 3.7 enforces the locale to support UTF-8 format. In this way, developers can control and manage the code changes by setting up a new environment variable. 


Inequality Operator

The latest Python version incorporates a fixed syntax for inequality operators. It comes as a notable change as in all the previous versions of Python 2, operators != and <> acted as inequality operators. However, in Python 3.7, the operator <> has been permanently replaced by !=. So now there will be a single inequality operator for Python 3 and all the above versions. 


Use of Iterables 

In Python 3, the built-in functions like zip, range, and, filter return iterators or iterables instead of a list. Previously, these functions used to return a list upon execution but in Python 3 versions, it has been replaced by iterables. However, if it is essential to convert an iterator into a list, developers can do so by using the following function


Benefits of Python 3.7 Over Python 2.7

Python 3 is a much-awaited update from the Python software foundation that offers several benefits over the previous versions of Python. Below are the main benefits of Python 3 over its previous versions:


  • Simplified class creation using the newly introduced data classes
  • Easy access to debuggers using built-in functions
  • Better support for type hinting
  • Improved precision timing functions
  • Accelerates method calling by up to 20%
  • The startup time is reduced by up to 30%
  • Time module in Python 3.7 receives significant updates


You may also like Exploring Different Apps that Can be Built with Python


Closing Remarks

As of January 1, 2020, Python software foundation has terminated backend support for Python 2. It implies that the backend code written in Python 2 will no longer compile with Python 3. As a result, using Python 2 versions may restrict your code-mobility, keeping you away from the latest updates and benefits of Python 3. Considering the fact that a large number of Python-based applications are still running on Python 2 backend code, it might be a problem in the long run.


Avail Our Services To Seamlessly Migrate Your App To Python 3.7

We are a seasoned Python app development company that builds cross-platform web and mobile applications using Python. We use the latest Python frameworks like Flask and Django to build feature-rich apps that deliver engaging user experiences across devices. Our development team is skilled at migrating your app from its existing tech stack to the latest Python versions with minimal code changes. We have successfully completed several full-scale Python-based development projects for clients from across the globe.

About Author

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Anirudh Bhardwaj

Anirudh is a Content Strategist and Marketing Specialist who possess strong analytical skills and problem solving capabilities to tackle complex project tasks. Having considerable experience in the technology industry, he produces and proofreads insightful content on next-gen technologies like AI, blockchain, ERP, big data, IoT, and immersive AR/VR technologies. In addition to formulating content strategies for successful project execution, he has got ample experience in handling WordPress/PHP-based projects (delivering from scratch with UI/UX design, content, SEO, and quality assurance). Anirudh is proficient at using popular website tools like GTmetrix, Pagespeed Insights, ahrefs, GA3/GA4, Google Search Console, ChatGPT, Jira, Trello, Postman (API testing), and many more. Talking about the professional experience, he has worked on a range of projects including Wethio Blockchain, BlocEdu, NowCast, IT Savanna, Canine Concepts UK, and more.

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