bp/resqpy

Progressively enable meaningful type checking by setting check_untyped_defs = true

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#910 opened on Jun 15, 2026

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good first issue

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Description

Although mypy runs on the whole code base, most of the library code is not meaningfully checked, as in the current configuration untyped functions are ignored.

A first step could be to include in the env type stubs for 3rd party libs like pandas, lxml, scipy, for more accurate checks.

Over time we could opt-in certain modules to more meaningful type checking with e.g.:

# pyproject.toml
[[tool.mypy.overrides]]
module = [
    "resqpy.crs",
    "resqpy.time_series._any_time_series",
    # add here as each is cleaned
]
check_untyped_defs = true

Contributor guide

Research direction
Add the mypy configuration snippet for each module after verifying there are no type errors. Start with the suggested modules and expand.
Tech stack
python
Domain
backend
Issue type
Chore
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Pythonmypy
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75