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Asked by Tanay Last Modified
Answer Since the Python 3 series was first released in 2008, the core team has consistently produced releases that have moved the language forward. If you work for an organization that has built their applications in Python 2.7 (or older), you need to carefully evaluate the differences between the Python 2 series and the Python 3 series.
In order to assist with the migration, many large organizations run Python 2.7 in parallel. Since you can safely install both Python 2.7 and Python 3 side-by-side on your computer, you can experiment with Python 3 while still using Python 2 for your current code.
Some of the highlights of the changes are listed below:
“PRINT” is a function
The print statement has been replaced with a print() function, with keyword arguments to replace most of the special syntax of the old print statement.
Unicode Changes
How Python handles text vs. data has changed considerably. All text is Unicode (represented by the str type), all binary data (e.g. 8-bit strings, encoded Unicode) is held in the new bytes type.
Syntax Changes
Python 3 supports function argument and return value annotations. Functions can declare keyword-only arguments.
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