Duplicate tests for placing brackets at the end of a command line

[Drako2711]

Hi, I am using the pytest command:
python3 -m pytest LoginTest.py --alluredir ./results
Console:

platform win32 -- Python 3.9.10, pytest-7.0.1, pluggy-1.0.0
rootdir: D:\PROYECTOS\SELENIUM\Pruebas
plugins: allure-pytest-2.9.45
collected 7 items

to go through the tests in my file, but when I add square brackets the items found are duplicated, for example from 7 it goes to 14, and so on.
This is the command, even if I leave the square brackets empty, it duplicates the same, has anyone else had this happen?
python3 -m pytest PurchaseTest.py --alluredir ./results [var]
Console:

platform win32 -- Python 3.9.10, pytest-7.0.1, pluggy-1.0.0
rootdir: D:\PROYECTOS\SELENIUM\Pruebas
plugins: allure-pytest-2.9.45
collected 14 items