This PR aims to fix #2. I also encountered the same error as #2. CallTracer constructor added max_typed_dict_size as a positional argument since MonkeyType 20.4.1 or later.

I have tried to use this plugin, it didn't work 🙂

Here's the error message I got:

» py.test --monkeytype-output=./monkeytype.sqlite3
/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pytest_benchmark/logger.py:44: PytestBenchmarkWarning: Can't compare. No benchmark files in '/Users/sobolev/Desktop/dramatiq/.benchmarks'. Can't load the previous benchmark.
  warner(PytestBenchmarkWarning(text))
================================ test session starts =================================
platform darwin -- Python 3.7.7, pytest-3.10.1, py-1.8.1, pluggy-0.13.1
benchmark: 3.2.3 (defaults: timer=time.perf_counter disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
rootdir: /Users/sobolev/Desktop/dramatiq, inifile: setup.cfg
plugins: benchmark-3.2.3, cov-2.8.1, monkeytype-1.0.5
collected 242 items                                                                  
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/_pytest/main.py", line 184, in wrap_session
INTERNALERROR>     session.exitstatus = doit(config, session) or 0
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/_pytest/main.py", line 223, in _main
INTERNALERROR>     config.hook.pytest_collection(session=session)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/hooks.py", line 286, in __call__
INTERNALERROR>     return self._hookexec(self, self.get_hookimpls(), kwargs)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/manager.py", line 93, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/manager.py", line 87, in <lambda>
INTERNALERROR>     firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/callers.py", line 208, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/callers.py", line 187, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/_pytest/main.py", line 233, in pytest_collection
INTERNALERROR>     return session.perform_collect()
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/_pytest/main.py", line 437, in perform_collect
INTERNALERROR>     hook.pytest_collection_finish(session=self)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/hooks.py", line 286, in __call__
INTERNALERROR>     return self._hookexec(self, self.get_hookimpls(), kwargs)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/manager.py", line 93, in _hookexec
INTERNALERROR>     return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/manager.py", line 87, in <lambda>
INTERNALERROR>     firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/callers.py", line 208, in _multicall
INTERNALERROR>     return outcome.get_result()
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/callers.py", line 80, in get_result
INTERNALERROR>     raise ex[1].with_traceback(ex[2])
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pluggy/callers.py", line 187, in _multicall
INTERNALERROR>     res = hook_impl.function(*args)
INTERNALERROR>   File "/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pytest_monkeytype/plugin.py", line 40, in pytest_collection_finish
INTERNALERROR>     sample_rate=None,
INTERNALERROR> TypeError: __init__() missing 1 required positional argument: 'max_typed_dict_size'
/Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pytest_benchmark/logger.py:44: PytestBenchmarkWarning: Not saving anything, no benchmarks have been run!
  warner(PytestBenchmarkWarning(text))

Versions:

» pytest --version
This is pytest version 3.10.1, imported from /Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pytest.py
setuptools registered plugins:
  pytest-benchmark-3.2.3 at /Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pytest_benchmark/plugin.py
  pytest-cov-2.8.1 at /Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pytest_cov/plugin.py
  pytest-monkeytype-1.0.5 at /Users/sobolev/Desktop/dramatiq/.venv/lib/python3.7/site-packages/pytest_monkeytype/plugin.py

I hit a problem with self.trace.logger being None so when I went to fix it, I noticed several other issues, such as logger not currently being part of the documented CallTracer interface.

Hope these changes help!

Also, is it true for MonkeyType that importing CallTracer should wait until after collection? I know that's how pytest-annotate does it but I think that might be due to the way PyAnnotate works which is different for MonkeyType. (I readily admit that I do not know much about gevent.)

$ python --version
Python 3.8.10

Trying: pip install pytest-monkeytype

output

  ERROR: Command errored out with exit status 1:
   command: /home/jonathan/develop/selenium-python-helium/venv/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-sfwdi49o/pytest-monkeytype/setup.py'"'"'; __file__='"'"'/tmp/pip-install-sfwdi49o/pytest-monkeytype/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-ylsggp4t
       cwd: /tmp/pip-install-sfwdi49o/pytest-monkeytype/
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help
  
  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for pytest-monkeytype

I need to configure MonkeyType but this plugin does not allow to provide custom configuration. Usually pytest plugins can be configured using fixtures.