Lesson5: Error: no module named 'pytest-brownie'

[Dahe-Pan]

I follow the steps in the video to write the test.py file, and the error information is below.
INFO: Could not find files for the given pattern(s).
Brownie v1.19.3 - Python development framework for Ethereum

File "E:\Python\lib\site-packages\brownie_cli_main_.py", line 64, in main
importlib.import_module(f"brownie.cli.{cmd}").main()
File "E:\Python\lib\site-packages\brownie_cli\test.py", line 61, in main
return_code = pytest.main(pytest_args, ["pytest-brownie"])
File "E:\Python\lib\site-packages_pytest\config_init.py", line 143, in main
config = prepareconfig(args, plugins)
File "E:\Python\lib\site-packages_pytest\config_init.py", line 315, in prepareconfig
pluginmanager.consider_pluginarg(plugin)
File "E:\Python\lib\site-packages_pytest\config_init.py", line 660, in consider_pluginarg
self.import_plugin(arg, consider_entry_points=True)
File "E:\Python\lib\site-packages_pytest\config_init_.py", line 705, in import_plugin
raise ImportError(
File "E:\Python\lib\site-packages_pytest\config_init_.py", line 703, in import_plugin
import(importspec)
ImportError: Error importing plugin "pytest-brownie": No module named 'pytest-brownie'

[Dahe-Pan]

I tried pip install pytest in my shell, but it told me the request is already satisfied.

[cromewar]

The problem could be if you installed brownie using pipx instead of just pip, try to removing brownie and install it just with pip:
pip install eth-brownie
Also, could you please share the code for your test.

[Dahe-Pan]

Sure, here is my test_simple_storage.py, Thanks for your help

from brownie import SimpleStorage, accounts 
def test_deploy():
    account = accounts[0]
    simple_storage=SimpleStorage.deploy({'from':account})
    starting_value=simple_storage.retrieve()
    expected=15
    assert starting_value == expected

[cromewar]

Could you try importing pytest?

[Dahe-Pan]

No, I tried 'import pytest', it still can't work and shows the same error imformation

[cromewar]

I strongly suggest to use a different python instance using virtualenv or venv