[Bootcamp Task] Upgrade thumbor-padding to Thumbor 7

[heynemann]

Areas of Expertise

open-source contributions

Summary

There's a cool project called thumbor-padding that needs to be upgraded to thumbor 7 (Thumbor 7 release notes - Look at the filters part!)

Involved Modules

List the modules the bootcamper has to interact with, like:

• thumbor-padding - padding.py

Task Relevance

Expands the list of projects with thumbor 7 compatibility as well as add a nice capability for users.

Further Details

• First you should "asyncify" the filter in the repository
• Then write tests to verify that the filter is indeed working
• Then do a PR to the repository owner (@heynemann can approve)
• Then we release a new version of thumbor-padding and 💰profit!

Proposed Solution

Just need to transform the filter into an async function as well as fix any issues in the codebase with python 3.

Remember to create a new virtualenv, install all the dependencies (usually can be done with pip install -e .[tests] but the setup.py for this project also needs to be updated. You can check thumbor's setup.py for that).

How to complete this task?

To complete this task, follow this workflow:

1. Fork the involved repositories
2. In each repository there's a documentation on how to install dependencies and initialize your environment
3. Hack, in no particular order:
   • Write code & tests
   • Write new tests
   • Write docs
   • Improve design
   • Check that all tests pass
   • Repeat until you're satisfied
4. Submit a pull request.