How to revert Python3 upgraded code to original version

Reverting Python 3 upgraded code to the original version can be a complex and time-consuming process, especially if you've made significant changes to adapt to Python 3 features. However, I'll provide you with a step-by-step guide and a simple code example to help you get started. Keep in mind that the complexity of the process may vary depending on the specific changes you've made in your code.
Before you start: Ensure that you have backups or version control in place (e.g., Git) that allow you to revert to your original code.
Step 1: Identify Python 3-specific changes
To revert your Python 3 code to the original version, you need to identify the specific changes you made to adapt to Python 3. Common changes might include:
Print Statements: In Python 2, print was a statement, while in Python 3, it became a function. You may have added parentheses around print statements.
Unicode Strings: In Python 3, all strings are Unicode by default. If you've made changes related to string encoding/decoding, you may need to revert them.
Division: In Python 3, division between integers results in a float. In Python 2, it results in an integer if both operands are integers. You might have added explicit type conversions.
xrange to range: Python 2 used xrange for efficient iteration, which was changed to range in Python 3.
Exceptions: Exception handling may differ between Python 2 and 3, especially with regards to the as keyword.
input vs. raw_input: In Python 2, you might have used raw_input for user input, while Python 3 uses input.
Step 2: Modify your code
Now that you've identified the Python 3-specific changes, you need to revert them. Let's say you have a Python 3 code snippet that uses the print function and division. Here's an example of how you can revert it to Python 2:
Python 3 code:
Reverted to Python 2:
In this example, we reverted the print function to the print statement and removed the explicit float division.
Step 3: Test your code
After making the necessary changes, it's crucial to test your code thoroughly. Ensure that your program still works as expected and there are no compatibility issues.
Step 4: Consider using the 2to3 tool
If your codebase is substantial and contains a lot of changes, you might want to consider using the 2to3 tool, which can help automate the conversion process to some extent. It's not a perfect solution, and manual adjustments will likely be required, but it can save you a lot of time.
Step 5: Update dependencies
Check if any ex