A system for Python that generates static type annotations by collecting runtime types

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Last update: Jan 7, 2023

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Documentation MonkeyType

Overview

MonkeyType

MonkeyType collects runtime types of function arguments and return values, and can automatically generate stub files or even add draft type annotations directly to your Python code based on the types collected at runtime.

Example

Say some/module.py originally contains:

def add(a, b):
    return a + b

And myscript.py contains:

from some.module import add

add(1, 2)

Now we want to infer the type annotation of add in some/module.py by running myscript.py with MonkeyType. One way is to run:

$ monkeytype run myscript.py

By default, this will dump call traces into a SQLite database in the file monkeytype.sqlite3 in the current working directory. You can then use the monkeytype command to generate a stub file for a module, or apply the type annotations directly to your code.

Running monkeytype stub some.module will output a stub:

def add(a: int, b: int) -> int: ...

Running monkeytype apply some.module will modify some/module.py to:

def add(a: int, b: int) -> int:
    return a + b

This example demonstrates both the value and the limitations of MonkeyType. With MonkeyType, it's very easy to add annotations that reflect the concrete types you use at runtime, but those annotations may not always match the full intended capability of the functions. For instance, add is capable of handling many more types than just integers. Similarly, MonkeyType may generate a concrete List annotation where an abstract Sequence or Iterable would be more appropriate. MonkeyType's annotations are an informative first draft, to be checked and corrected by a developer.

Motivation

Readability and static analysis are the primary motivations for adding type annotations to code. It's already common in many Python style guides to document the argument and return types for a function in its docstring; annotations are a standardized way to provide this documentation, which also permits static analysis by a typechecker such as mypy.

For more on the motivation and design of Python type annotations, see PEP 483 and PEP 484.

Requirements

MonkeyType requires Python 3.6+ and the libcst library (for applying type stubs to code files). It generates only Python 3 type annotations (no type comments).

Installing

Install MonkeyType with pip:

pip install MonkeyType

How MonkeyType works

MonkeyType uses the sys.setprofile hook provided by Python to interpose on function calls, function returns, and generator yields, and record the types of arguments / return values / yield values.

It generates stub files based on that data, and can use libcst to apply those stub files directly to your code.

See the full documentation for details.

Troubleshooting

Check if your issue is mentioned in the frequently asked questions list.

Development

See CONTRIBUTING.rst for information on developing and contributing to MonkeyType.

LICENSE

MonkeyType is BSD licensed.

Comments

Python 3.9 AttributeError: args

I honestly cannot parse this error message.

I'm trying to run monkeytype on manim's mobject.py

monkeytype stub manim.mobject.mobject

Traceback (most recent call last):
  File "C:\Python39\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Python39\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\ethan\AppData\Local\pypoetry\Cache\virtualenvs\manim-ob3XvX2_-py3.9\Scripts\monkeytype.exe\__main__.py", line 7, in <module>
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\cli.py", line 396, in entry_point_main
    sys.exit(main(sys.argv[1:], sys.stdout, sys.stderr))
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\cli.py", line 381, in main
    handler(args, stdout, stderr)
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\cli.py", line 199, in print_stub_handler
    stub = get_stub(args, stdout, stderr)
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\cli.py", line 126, in get_stub
    stubs = build_module_stubs_from_traces(
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\stubs.py", line 819, in build_module_stubs_from_traces
    return build_module_stubs(defns)
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\stubs.py", line 784, in build_module_stubs
    imports = get_imports_for_signature(entry.signature)
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\stubs.py", line 157, in get_imports_for_signature
    param_imports = get_imports_for_annotation(param.annotation)
  File "c:\users\ethan\appdata\local\pypoetry\cache\virtualenvs\manim-ob3xvx2_-py3.9\lib\site-packages\monkeytype\stubs.py", line 143, in get_imports_for_annotation
    elem_types = anno.__args__ or []
  File "C:\Python39\lib\typing.py", line 694, in __getattr__
    raise AttributeError(attr)
AttributeError: __args__

opened by GameDungeon 28

TypeVar instances also lack `__qualname__`

Sharing a quick fix I needed to get to work on some of the projects I quickly gave this a shot on. It choked on trying to serialize TypeVar instances as it seems like it also lacks __qualname__.
CLA Signed

opened by vodik 18

Getting '_SpecialForm' object has no attribute 'name'

I'm getting this error running monkeytype 21.5 on python 3.8:

monkeytype run -m pytest tests
Failed collecting trace
Traceback (most recent call last):
  File "path\to\env\lib\site-packages\monkeytype\tracing.py", line 259, in __call__
    self.handle_call(frame)
  File "path\to\env\lib\site-packages\monkeytype\tracing.py", line 225, in handle_call
    arg_types[name] = get_type(frame.f_locals[name],
  File "path\to\env\lib\site-packages\monkeytype\typing.py", line 190, in get_type
    return get_dict_type(obj, max_typed_dict_size)
  File "path\to\env\lib\site-packages\monkeytype\typing.py", line 170, in get_dict_type
    val_type = shrink_types((get_type(v, max_typed_dict_size) for v in dct.values()), max_typed_dict_size)
  File "path\to\env\lib\site-packages\monkeytype\typing.py", line 133, in shrink_types
    annotation = shrink_types((getattr(typ, '__args__')[0] for typ in types), max_typed_dict_size)
  File "path\to\env\lib\site-packages\monkeytype\typing.py", line 132, in shrink_types
    if all(is_list(typ) for typ in types):
  File "path\to\env\lib\site-packages\monkeytype\typing.py", line 132, in <genexpr>
    if all(is_list(typ) for typ in types):
  File "path\to\env\lib\site-packages\monkeytype\typing.py", line 54, in is_list
    return is_generic(typ) and name_of_generic(typ) == 'List'
  File "path\to\env\lib\site-packages\monkeytype\compat.py", line 43, in name_of_generic
    return typ._name or typ.__origin__.__name__
AttributeError: '_SpecialForm' object has no attribute '__name__'

Using 20.5 works correctly instead. This happens while running monkeytype on alembic.

To reproduce (commit e31971cfb46efd0ef41525473a1d9bcb81e90f43 is the current head of alembic):

git clone https://github.com/sqlalchemy/alembic.git
cd alembic
git checkout e31971cfb46efd0ef41525473a1d9bcb81e90f43
pip install -e .
pip install python-dateutil
monkeytype run -m pytest tests

need-info

opened by CaselIT 12

Allow typing specified modules in site-packages

#82

This PR allows users to define an environment variable MONKEYTYPE_MODULE with name of a module, which would be typed by MonkeyType even if it is under Python site-packages.
CLA Signed

opened by BoPeng 12
`monkeytype run manage.py test` doesn't produce sqllite file

I've run monkeytype run manage.py test in my django project after pip install monkeytype (inside of a virtual env) and I'm not seeing any output of the sqllite file described in the README.

Running monkeytype stub for any of my modules doesn't work either. If there's something different that I have to do for django tests, let's add that to the README. Otherwise, am I missing something?

opened by nsillik 10
record per-key types for heterogenous dicts and suggest TypedDict annotation

Currently MonkeyType assumes dicts are homogenous. When heterogenous dicts are seen, we just combine all the value types into a Union (and then if that Union gets too big, by default we rewrite it to Any). It'd be more useful in such cases to suggest a TypedDict annotation with per-key value types.

The trick here is that we don't really know the intention, so there'd be some level of heuristic involved. Like, if there's multiple non-None value types (and probably if the number of keys is less than some threshold), rather than recording just a single value type, we record per-key value types. Then we'd also need some smarts when combining traces into an annotation: if we have any traces with per-key value types, try to construct a consistent TypedDict, but if we find that key names and value types aren't matching up consistently, fallback to normal Dict.

There's enough fuzziness in the heuristics here and this'd be enough work that it might not be worth it, but for codebases that use lots of heterogenous dicts, it'd make the generated annotations a lot more useful.
enhancement

opened by carljm 9

demo example tests are not passing at 100% on Windows

I tried to run the demo but I got:

monkeytype\demo>pytest
============================= test session starts =============================
platform win32 -- Python 3.6.1, pytest-3.5.0, py-1.5.3, pluggy-0.6.0
rootdir: monkeytype\demo, inifile: pytest.ini
plugins: cov-2.5.1
collected 8 items

test_inbox.py ......F.                                                   [100%]

================================== FAILURES ===================================
_______________________________ test_everything _______________________________

    def test_everything():
        u = make_user()
        other = make_user(name="Other", following=[u.id])
        first_entry = make_feedentry(user_id=u.id, caption="My First Post")
        follow = make_followed(user_id=u.id, follower_id=other.id)
        second_entry = make_feedentry(user_id=u.id, caption="Second Post")
        like1 = make_liked(user_id=u.id, liker_id=other.id, feedentry_id=first_entry.id)
        comment = make_commented(
            user_id=u.id, commenter_id=other.id, feedentry_id=first_entry.id
        )
        like2 = make_liked(user_id=u.id, liker_id=other.id, feedentry_id=second_entry.id)
        repo = FakeRepo(u, other, first_entry, second_entry, like1, like2, comment, follow)
        box = inbox.Inbox(u, repo)

>       assert (
            box.aggregate()
            == [
                models.AggregatedItem(
                    type=models.EventType.LIKED,
                    text='Other liked your post "Second Post".',
                    published=like2.published,
                ),
                models.AggregatedItem(
                    type=models.EventType.COMMENTED,
                    text="Other commented on your post.",
                    published=comment.published,
                ),
                models.AggregatedItem(
                    type=models.EventType.LIKED,
                    text='Other liked your post "My First Post".',
                    published=like1.published,
                ),
                models.AggregatedItem(
                    type=models.EventType.FOLLOWED,
                    text="Other started following you.",
                    published=follow.published,
                ),
            ]
        )
E       assert [AggregatedIt... 26, 231564))] == [AggregatedIte... 26, 231564))]
E         At index 0 diff: AggregatedItem(type=<EventType.COMMENTED: 'commented'>, text='Other commented on your post.', published=datetime.datetime(2018, 7, 25, 6, 38, 26, 231564)) != AggregatedItem(type=<EventType.LIKED: 'liked'>, text='Other liked your post "Second Post".', published=datetime.datetime(2018, 7, 25, 6, 38, 26, 231564))
E         Use -v to get the full diff

test_inbox.py:242: AssertionError

----------- coverage: platform win32, python 3.6.1-final-0 -----------
Name       Stmts   Miss Branch BrPart  Cover   Missing
------------------------------------------------------
inbox.py      87      2     33      1    98%   163-164, 160->163
Coverage HTML written to dir htmlcov

===================== 1 failed, 7 passed in 0.38 seconds ======================

monkeytype\demo>

opened by bluebird75 9

MonkeyType is not working in IPython

The newer version of MonkeyType does not work in IPython. I think https://github.com/Instagram/MonkeyType/commit/e8bb8a687e18dbb3c734ef33501a573265465c9d could be the reason.

An interactive session in IPython will assert __name__ == '__main__' it would still be meaningful to capture the CallTrace so folks could interactively type their notebook/python source.

I can totally understand if this falls outside the scope of the project.
bug

opened by tonyfast 9

cannot use MonkeyType on Azure App Services filesystem: `sqlite3.OperationalError: database is locked`

I've been attempting to get MonkeyType 21.5.0 to work in AzureML, which uses Ubuntu VMs for compute instances. However, after multiple attempts in both Python 3.6.9 and 3.8.1, every command, version, and file I've tried returns the same error trace:

Traceback (most recent call last):
  File "/anaconda/envs/azureml_py38/bin/monkeytype", line 8, in <module>
    sys.exit(entry_point_main())
  File "/anaconda/envs/azureml_py38/lib/python3.8/site-packages/monkeytype/cli.py", line 396, in entry_point_main
    sys.exit(main(sys.argv[1:], sys.stdout, sys.stderr))
  File "/anaconda/envs/azureml_py38/lib/python3.8/site-packages/monkeytype/cli.py", line 381, in main
    handler(args, stdout, stderr)
  File "/anaconda/envs/azureml_py38/lib/python3.8/site-packages/monkeytype/cli.py", line 210, in list_modules_handler
    modules = args.config.trace_store().list_modules()
  File "/anaconda/envs/azureml_py38/lib/python3.8/site-packages/monkeytype/config.py", line 147, in trace_store
    return SQLiteStore.make_store(db_path)
  File "/anaconda/envs/azureml_py38/lib/python3.8/site-packages/monkeytype/db/sqlite.py", line 82, in make_store
    create_call_trace_table(conn)
  File "/anaconda/envs/azureml_py38/lib/python3.8/site-packages/monkeytype/db/sqlite.py", line 45, in create_call_trace_table
    conn.execute(query)
sqlite3.OperationalError: database is locked

The sqlite3 DB is being created, but the connection isn't being closed correctly despite the with statement in line 44 of ./monkeytype/db/sqlite.py. Is there any way to config the context manager for the sqlite DB?

opened by ColtAllen 8

monkeytype/typing.py import error in PyCharm

Trying to set up dev environment per instructions in CONTRIBUTING.rst

Getting an import error: Traceback (most recent call last): File "/home/johnar/github/MonkeyType/monkeytype/cli.py", line 17, in from typing import ( File "/home/johnar/github/MonkeyType/monkeytype/typing.py", line 10, in from typing import ( ImportError: cannot import name 'Any'

In pycharm it actually shows that import _Any and _Union result in unresolved reference, as they're not defined in the typing module.

This is with stdlib typing 3.6.4: typing 3.6.4

opened by johnarnold 8
monkeytype / retype doesn't apply stubs in __init__.py

For one of my modules, I ran test cases via monketype run, I can see the traces in the sqlite3 database, and I can run 'monketype stub modulename' and see what looks like valid stub output.

However, when I run 'monkeytype apply modulename', it returns no errors but the module is not modified.

I've been able to successfully update other modules. This module is my only good repro so far. There are no errors anywhere. I'm open to ideas on how to proceed. I guess i can start with debugging monkeytype?
bug

opened by johnarnold 8
Support PEP 604 Union syntax (Union[a, b] → a | b)
PEP 604 introduces a new Union syntax in Python 3.10+. It would be nice if Monkeytype could leverage that, and perhaps have a flag to use a union with None rather than the Optional type.

# Old syntax def foo(a: Optional[Union[float, int]]) -> Optional[float]: ... # New syntax def foo(a: float | int | None) -> float | None: ...
enhancement
opened by AllanLeanderRostockHansen 0

Traces with builtins.coroutine, builtins.async_generator fail to decode

WARNING: Failed decoding trace: Module 'builtins' has no attribute 'async_generator'
WARNING: Failed decoding trace: Module 'builtins' has no attribute 'async_generator'
WARNING: Failed decoding trace: Module 'builtins' has no attribute 'async_generator'
WARNING: Failed decoding trace: Module 'builtins' has no attribute 'coroutine'
WARNING: Failed decoding trace: Module 'builtins' has no attribute 'coroutine'
WARNING: Failed decoding trace: Module 'builtins' has no attribute 'coroutine'
WARNING: Failed decoding trace: Module 'builtins' has no attribute 'coroutine'
WARNING: Failed decoding trace: Module 'builtins' has no attribute 'coroutine'

Got the above in verbose mode when running Python 3.6.15 and MonkeyType 21.5.0 .

Should these be in the following? https://github.com/Instagram/MonkeyType/blob/cef09c6702fbab58e66582f76f2559d6a21e448c/monkeytype/encoding.py#L97-L102

And are there any other async or builtin types that need this special handling?

Even though traces that don't decode usually get ignored, async types are probably very meaningful for the codebase.

bug

opened by slix 1

"Failed collecting trace" and then lots of exceptions

Should be a pretty easy repro.

Create a Dockerfile with the following contents:

FROM ubuntu:20.04
RUN apt-get update
RUN apt-get install -y python3 python3-pip
RUN pip3 install monkeytype
RUN echo "from pkg_resources.extern import six" > repro.py

Then build it with docker build --network=host -t repro . and start with docker run --rm -it repro bash (or whatever).

Can verify that the import works correctly:

root@2ed6e4080312:/# python3 repro.py
root@2ed6e4080312:/#

(python3 here is 3.8)

But this doesn't work through MonkeyType:

root@2ed6e4080312:/# monkeytype run repro.py
Failed collecting trace
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/monkeytype/tracing.py", line 259, in __call__
    self.handle_call(frame)
  File "/usr/local/lib/python3.8/dist-packages/monkeytype/tracing.py", line 213, in handle_call
    func = self._get_func(frame)
  File "/usr/local/lib/python3.8/dist-packages/monkeytype/tracing.py", line 207, in _get_func
    self.cache[code] = get_func(frame)
  File "/usr/local/lib/python3.8/dist-packages/monkeytype/tracing.py", line 151, in get_func
    func = get_func_in_mro(first_arg, code)
  File "/usr/local/lib/python3.8/dist-packages/monkeytype/tracing.py", line 113, in get_func_in_mro
    val = inspect.getattr_static(obj, code.co_name, None)
  File "/usr/lib/python3.8/inspect.py", line 1596, in getattr_static
    instance_result = _check_instance(obj, attr)
  File "/usr/lib/python3.8/inspect.py", line 1546, in _check_instance
    return dict.get(instance_dict, attr, _sentinel)
TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object
...
...

bug

opened by EvanED 1

Less scary output on failed collecting trace warnings

We don't need to print the full traceback, and we could probably hint people that even if a few traces failed to collect that doesn't mean useful type traces weren't still collected.

See e.g. #244
enhancement

opened by carljm 0
failed collecting trace: TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object

First time using this tool, after watching the utoob discussion. No type info whatsoever in my code, but I was prepared to be converted, and was interested to get a leg up with this tool.

monkeytype run zwi/zwi.py Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Failed collecting trace Traceback (most recent call last): File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 259, in __call__ self.handle_call(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 213, in handle_call func = self._get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 207, in _get_func self.cache[code] = get_func(frame) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 151, in get_func func = get_func_in_mro(first_arg, code) File "/Users/dap/Library/Python/3.9/lib/python/site-packages/monkeytype/tracing.py", line 113, in get_func_in_mro val = inspect.getattr_static(obj, code.co_name, None) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1622, in getattr_static instance_result = _check_instance(obj, attr) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 1572, in _check_instance return dict.get(instance_dict, attr, _sentinel) TypeError: descriptor 'get' for 'dict' objects doesn't apply to a 'NoneType' object Usage: python -m zwi [OPTIONS] COMMAND [ARGS]...
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