Adventures in Machine Learning

Python2 vs Python3: Why Python3 is the Winning Version

Python2 and Python3: Differences and Comparison

Python is an Open-source programming language, which is being widely used by various industries and businesses for developing applications, managing data and much more. Python is easy to learn, readable, flexible, and fast.

However, Python2 and Python3 are two different versions of the programming language. Python2 was released in the year 2000, while the latest release, Python3 was introduced in 2008.

Both versions are still being used today, depending on the specific needs of the project.

Differences between Python2 and Python3

One of the notable differences between the two versions is the print statement. In Python2, it is a statement, while in Python3, it is a function.

Python2 also accepts the use of a comma for separation of variables while using a print statement, which is not allowed in Python3. The input statement also has a difference in the two versions.

Python2 uses the raw_input() function, while Python3 uses the input() function. This change in Python3 ensures that it allows a user to prompt and input any data type of their choice.

Variables in the print statement are also handled differently between Python2 and Python3. Python3 requires the use of an open and close parenthesis for the print statement to accept multiple variables or format strings.

On the other hand, Python2 only requires a comma to separate variables being printed.

Error handling in Python3 is better than that of Python2.

Error handling is critical in any programming language, and Python3 provides developers with a better mechanism for handling errors. The introduction of “except” blocks in Python3 allows for more specific error handling, which is not available in Python2.

Another significant difference between the versions is the division operation. In Python2, the “/” operator always truncates the decimal part, which could lead to wrong calculations.

Python3, however, has a distinction between ‘//’ and ‘/’ and returns an exact result even when handling numbers with decimal places. This major issue is resolved in Python3, which is why it is preferred over Python2.

Iteration function is available in both Python2 and Python3, with slight differences. Python2 has a function called “xrange” which is used for iterating.

In Python3, range() is used instead of xrange(). Although they do the same job, with range() in Python3 being executed faster.

Comparison between Python2 and Python3

Python3 is widely considered as a better version of the programming language compared to Python2. While both versions have their unique features and advantages, Python3 is seen as more efficient, secure, and modern.

Python3 uses Unicode rather than ASCII codes used in Python2, which makes it better compatible with the international standards. There has also been development conflict between Python2 and Python3, mainly due to the typing function.

Python3 implements this function which provides better accuracy in variable types during coding. However, Python2 does not have this function, leading to complications and possible coding errors.

Python3 also introduces more advanced programming concepts like Artificial Intelligence (AI), which are crucial in today’s technological world. These concepts include machine learning and data science, and developers are continually developing more AI-based applications every day.

Python3 is, therefore, more in line with current market demand than Python2.


In conclusion, Python3 is superior to Python2 in several ways. Python2 is still being used by some organizations due to legacy codes, and reluctance to make changes in their systems.

However, Python3 offers better features, improved error handling capability, quicker iteration processes, better typing functions, and modern programming concepts that are keeping up with the advancements of technology. Therefore, it is vital for organizations and developers to consider upgrading to Python3 for the betterment of their systems.

Winner Version: Why Python3 is the Way to Go

When it comes to choosing between Python2 and Python3, the latter is undoubtedly the winner. While both versions being used, Python3 offers a wide range of improvements that make it a much better option than its predecessor.

In fact, the Python Software Foundation officially declared that it would stop supporting Python2 after January 1, 2020. Hence, it is in everyone’s best interest, especially new programmers, to switch to Python3.

So, why is Python3 the winner? Firstly, Python3 supports Unicode natively, which makes it more efficient in handling text and internationalization issues.

Python2, on the other hand, used to rely on ASCII, which couldn’t handle the vast variety of languages, scripts, symbols, and emojis we use today. This feature of Python3 makes it the perfect option for developing projects that demand support for Unicode natively.

Python3 is also a safer option than Python2 for developing new projects. Due to outdated functionality, Python2 has certain vulnerabilities that can be exploited by hackers, leading to data breaches and system manipulation.

Python3, in contrast, has better error handling capability, which eliminates these vulnerabilities, and if used correctly, can lead to secure systems. In terms of performance, Python3 has brought numerous improvements into the language as a whole.

The use of more advanced scripting techniques, like Just In Time (JIT) compilation, which assembles Python code on the fly and executes it faster, speeds up the runtime of applications significantly. Python3 also reduces the memory usage of applications, leading to efficient systems that consume fewer resources.

Perhaps the biggest reason why Python3 is the winner version is its updated syntax and modern programming concepts. The variable annotation feature introduced in Python3 provides more clarity in the coding process, making it easier for developers to understand and maintain code in the long-run.

Python3 also introduced better ways to handle concurrency issues, threading, I/O, and much more. Most importantly, Python3 is the language of choice when it comes to developing machine learning and artificial intelligence projects.

The introduction of libraries like Tensorflow, Keras, and Pytorch made it possible to develop state-of-the-art solutions in the areas of AI, data science, robotics, and more.

Advice for New Programmers

For new programmers, diving into Python3 is a great place to start your coding journey. Python3’s user-friendly syntax makes it easier to read and learn, and there are vast resources online that can guide you through the learning process.

Apart from this, here are a few other tips for new programmers:

1. Know the Fundamentals

Before you start working on projects, make sure you are familiar with the basics concepts of programming such as control statements, loops, functions, and data structures.

You can do this by going through online tutorials, reading books on Python programming, or joining communities online that discuss coding. These fundamentals will help you understand more advanced concepts later in the learning process.

2. Practice Coding

The more you code, the better you’ll get.

Practice creating multiple programs, trying out different algorithms, and tackling different problems using the language. With practice, you’ll start to develop a deeper understanding of Python programming and, eventually, become a better coder.

3. Join Communities

Joining coding communities and forums online will help you engage with more experienced coders who can guide you through any coding challenges you may have.

These platforms also provide ample opportunity to ask for help and to learn new techniques and tricks from more experienced coding professionals. 4.

Read Documentation

One of the biggest advantages of Python is its extensive documentation, available online. New programmers should make use of these resources to understand modules, libraries, and functions to maximize their coding skills.

In conclusion, Python3’s Unicode compatibility, safe functionality, optimized performance, updated syntax, and modern programming concepts make it the winning version of the programming language. Moreover, Python3 is the best place to start for new programmers, and following the right direction can propel them towards a successful career as a coder.

As one grows in the field, the programming language will give numerous possibilities and will allow one to take on advanced tasks that can lead to better job prospects and a more fulfilling career in a constantly evolving tech world. In conclusion, Python2 and Python3 are two different versions of the programming language, and Python3 is the superior version.

Python3 offers better features, improved error handling capability, quicker iteration processes, better typing functions, and modern programming concepts that keep up with the advancements in technology. Python3 is also the best place to start for new programmers, and following the right direction can propel them towards success and a fulfilling career in a constantly evolving tech world.

It is crucial to switch to Python3 for anyone still using Python2, given it is the winner version and can provide better and safer programming solutions.

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