Instagram/MonkeyType

View on GitHub

A Python library that generates static type annotations by collecting runtime types

Stars: 5k
Forks: 209
Open beginner issues: 0
Indexed issues: 58

Dominant language: Python
License: No license data
Last GitHub push: Jun 14, 2025
Latest indexed: Sep 17, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue
PR merge metrics: No merged PRs in 30d

Open All

58 open issues indexed

support for django.utils.functional.lazy Open

enhancement

Instagram/MonkeyType#6 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
add decorator for overriding sample_rate for given function only Open

enhancement low-pri

Instagram/MonkeyType#10 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
handle decoding Traceback type Open

enhancement low-pri

Instagram/MonkeyType#13 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
monketype fails to stub the initial script Open

enhancement low-pri

Instagram/MonkeyType#19 · 11 comments · 2 reactions · 0 assignees · Indexed Sep 17, 2026
apply stubs to more than one module at a time Open

enhancement

Instagram/MonkeyType#26 · 14 comments · 10 reactions · 0 assignees · Indexed Sep 17, 2026
Support nested classes (ERROR: Failed decoding trace: Module '...' has no attribute '<function with nested class>') Open

enhancement

Instagram/MonkeyType#36 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Pluggable support for custom descriptor types Open

enhancement

Instagram/MonkeyType#47 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
retype fails when stub has `Optional[str]` annotation for a parameter that is annotated with `str` in the source Open

bug

Instagram/MonkeyType#48 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Support for OrderedDict Open

enhancement

Instagram/MonkeyType#51 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
TypeRewriter design is susceptible to type name collisions Open

bug

Instagram/MonkeyType#54 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
CallTraceStoreLogger should store only unique traces by default Open

enhancement

Instagram/MonkeyType#56 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Performance - MonkeyType Adding Extreme Amount of Overhead Open

enhancement

Instagram/MonkeyType#87 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Don't crash if encountering a TypeVar or other object without `__qualname__` in tracing Open

bug

Instagram/MonkeyType#96 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Avoid stdlib in tracing, even for venv-within-a-venv (e.g. pip test suite) Open

bug

Instagram/MonkeyType#97 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
monkeytype stub generates invalid stub for nested classes. Open

bug

Instagram/MonkeyType#114 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Failed collecting trace: IndexError index out of range Open

bug

Instagram/MonkeyType#120 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Non-deterministic crash generating stubs: AttributeError: type object ... has no attribute '__args__' Open

need-info

Instagram/MonkeyType#122 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Generate stubs with source ordering Open

enhancement

Instagram/MonkeyType#125 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 17, 2026
No easy way to generate stubs for django apps Open

documentation enhancement

Instagram/MonkeyType#137 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Switch to typing-inspect for as much type-inspection as possible Open

enhancement good first issue

Instagram/MonkeyType#144 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Standard Example does not work Open

need-info

Instagram/MonkeyType#158 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
add FAQ entry about multiple processes / threads Open

documentation

Instagram/MonkeyType#178 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Add test coverage on github Open

low-pri

Instagram/MonkeyType#197 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Feature request: enable an optional limit at which the generated annotation for a type is `Any` Open

enhancement

Instagram/MonkeyType#202 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Support type naming conflicts Open

bug

Instagram/MonkeyType#209 · 3 comments · 5 reactions · 0 assignees · Indexed Sep 17, 2026
Avoid failing to trace a call when passed _Protocol or Generic Open

low-pri

Instagram/MonkeyType#211 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Fix discrepancy between MonkeyType and script when modifying `locals()` dictionary Open

low-pri

Instagram/MonkeyType#212 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
failed collecting trace: TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Open

need-info

Instagram/MonkeyType#244 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Less scary output on failed collecting trace warnings Open

enhancement

Instagram/MonkeyType#245 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
"Failed collecting trace" and then lots of exceptions Open

bug

Instagram/MonkeyType#250 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Traces with builtins.coroutine, builtins.async_generator fail to decode Open

bug

Instagram/MonkeyType#252 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Support PEP 604 Union syntax (Union[a, b] → a | b) Open

enhancement

Instagram/MonkeyType#270 · 2 comments · 8 reactions · 0 assignees · Indexed Sep 17, 2026
ValueError: source code string cannot contain null bytes Open

Instagram/MonkeyType#285 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Compare observed types to existing type annotations Open

enhancement

Instagram/MonkeyType#288 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Empty lists result in overly broad types Open

bug

Instagram/MonkeyType#289 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Issue with Callable type for < Python 3.9 Open

Instagram/MonkeyType#293 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 17, 2026
Better documentation for how to use MonkeyType with multiple processes/threads Open

documentation

Instagram/MonkeyType#294 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
`*args` and `**kwargs` are not captured in traces Open

enhancement

Instagram/MonkeyType#307 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Add pre-commit support Open

enhancement

Instagram/MonkeyType#308 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 17, 2026
pep_563 flag creates imports that don't match the usage of the name Open

bug

Instagram/MonkeyType#313 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Support PEP 585 - list[int] instead of typing.List[int] Open

enhancement

Instagram/MonkeyType#316 · 2 comments · 6 reactions · 0 assignees · Indexed Sep 17, 2026
Error when parameter in external file is class defined in `__main__` Open

Instagram/MonkeyType#323 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Return type not traced when returning constant (Python ≥ 3.12) Open

Instagram/MonkeyType#325 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
monkeytype apply seems to attempt to import my whole program, causing monkeytype: error: unrecognized arguments: Open

Instagram/MonkeyType#332 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Docs request: FAQ on `pytest` usage Open

Instagram/MonkeyType#336 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Request: supporting `typing.Self` Open

Instagram/MonkeyType#337 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
`monkeytype apply`: UnicodeDecodeError Open

Instagram/MonkeyType#341 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
"Exception: Should not receive a TypedDict type in RenderAnnotation" with mypy_extensions.TypedDict Open

Instagram/MonkeyType#342 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Is Python 3.11 or later officially supported? Open

Instagram/MonkeyType#352 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
MonkeyType does not annotate a function that `yiled`s values as `Iterable` Open

Instagram/MonkeyType#353 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026

Instagram/MonkeyType

Get new issues in your inbox