1. which python (2 or 3) is preferred the most ?? 2. the python versions starting with 3 come in python 3 ?? for eg. does python 3.1.2 come in python 3?? 3. Is there a big difference in these versions or any od the version is just fine

Hello,

Python 3 is more in-demand and includes a typing system. Python 2 is outdated and uses an older syntax for the print function. While Python 2 is still in use for configuration management in DevOps, Python 3 is the current standard. Python (the code, not the snake) is a popular coding language to learn for beginners.

Yes python 3.1 is the version of python 3.

• Python 3 syntax is simpler and easily understandable whereas Python 2 syntax is comparatively difficult to understand.
• Python 3 default storing of strings is Unicode whereas Python 2 stores need to define Unicode string value with "u."
• Python 3 value of variables never changes whereas in Python 2 value of the global variable will be changed while using it inside for-loop.
• Python 3 exceptions should be enclosed in parenthesis while Python 2 exceptions should be enclosed in notations.
• Python 3 rules of ordering comparisons are simplified whereas Python 2 rules of ordering comparison are complex.
• Python 3 offers Range() function to perform iterations whereas, In Python 2, the xrange() is used for iterations

These above mentioned are the key differences between python 2 and python 3.

Regards!