pytroll / pytroll/aggdraw

Convert factory functions to proper python classes

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#43 4 comments 0 reactions 0 assignees View on GitHub

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help wanted priority: medium
Dominant language
C++
Stars
107
Forks
45
Avg merge
13h 41m
Merged PRs (30d)
7

Description

Aggdraw seems to define all of its class __new__ methods as functions in the aggdraw module. It then creates a new object by creating a new type. This is an issue because this means classes like aggdraw.Draw aren't actually classes, they are functions, and that a user has no access to the methods without creating an instance of the object. Even worse you can't use sphinx autodoc functionality to document the classes because they don't technically exist until an instance is made.

I don't think this will be extremely hard to implement, but it isn't a top priority for me. Additionally, it has a high chance of breaking something.

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the aggdraw module's new definitions and the implementations of exposed objects such as aggdraw.Draw. Check how those objects are currently created and how existing tests exercise them; done means the exposed objects are proper classes and remain compatible with current behavior while allowing autodoc to inspect them.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, python
Domain
developer-experience, documentation
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
32/100

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