Some line are actually ran but reported as missing when using with line_profiler

[gameliee]

Summary

some lines are actually ran, but reported as missing in coverage.

Expected vs actual result

Expected cov: 100%
Actual cov: 76%

Reproducer

reproducer.py

import time
import line_profiler
import pytest


class SlowClass:
    def slowww(self):
        for i in range(10):
            time.sleep(0.1)


@pytest.fixture
def sl():
    profiler = line_profiler.LineProfiler()
    sl = SlowClass()
    # patch methods that we want to profile it
    sl.slowww = profiler(sl.slowww)
    yield sl
    profiler.print_stats()
    print("im here")


def test_profile(sl: SlowClass):
    sl.slowww()

run above code with

❯ pytest -s --cov --cov-report term-missing reproducer.py 
======================================= test session starts =======================================
platform linux -- Python 3.10.4, pytest-7.3.1, pluggy-1.0.0
rootdir: /home/xxxxxxxxxx/new_folder
plugins: cov-4.1.0
collected 1 item                                                                                  

lazada.py .Timer unit: 1e-09 s

Total time: 1.00181 s
File: /home/xxxxxxxxxx/new_folder/reproducer.py
Function: slowww at line 7

Line #      Hits         Time  Per Hit   % Time  Line Contents
==============================================================
     7                                               def slowww(self):
     8        10      27693.0   2769.3      0.0          for i in range(10):
     9        10 1001781423.0 100178142.3    100.0              time.sleep(0.1)

im here


---------- coverage: platform linux, python 3.10.4-final-0 -----------
Name          Stmts   Miss  Cover   Missing
-------------------------------------------
conftest.py       0      0   100%
lazada.py        17      4    76%   8-9, 19-20
-------------------------------------------
TOTAL            17      4    76%


======================================== 1 passed in 1.03s ========================================

Versions

`pip list`

Package            Version
------------------ ---------
black              23.3.0
certifi            2022.6.15
cfgv               3.3.1
charset-normalizer 3.1.0
click              8.1.3
coverage           7.2.7
distlib            0.3.6
dynaconf           3.1.12
exceptiongroup     1.1.1
filelock           3.12.0
fire               0.5.0
flake8             6.0.0
identify           2.5.24
idna               3.4
iniconfig          2.0.0
line-profiler      4.0.3
mccabe             0.7.0
mypy-extensions    1.0.0
nodeenv            1.8.0
packaging          23.1
pathspec           0.11.1
pip                21.2.4
platformdirs       3.5.1
pluggy             1.0.0
pre-commit         3.3.2
pycodestyle        2.10.0
pydantic           1.10.8
pyflakes           3.0.1
pytest             7.3.1
pytest-cov         4.1.0
PyYAML             6.0
requests           2.31.0
setuptools         61.2.0
six                1.16.0
termcolor          2.3.0
tomli              2.0.1
typing_extensions  4.6.3
urllib3            2.0.2
virtualenv         20.23.0
wheel              0.37.1

❯ python --version
Python 3.10.4
❯ pytest --version
pytest 7.3.1

Config

No tox.ini, pytest.ini, .coveragerc, setup.cfg or any relevant configuration.

Other

Please note that when I commend the line sl.slowww = profiler(sl.slowww) in the reproducer.py, the cov result will be 100%