Environment

• pip version: 19.0 or later (I didn’t test earlier versions)
• Python version: any
• OS: any

Description

From pypa/pipx#365. The result list would either include the package in the working directory or not, depending on how pip is invoked.

• pip list would not contain the package in cwd.
• python -m pip list would contain the package in cwd.

Expected behavior

The behaviour should be the same no matter how pip is invoked. Ideally the package in cwd should not be included (unless the package is also in sys.path other than .).

How to Reproduce

Create package metadata in cwd:

mkdir foo
cd foo
echo "from setuptools import setup; setup(name='foo', version='1.0.0')" > setup.py
python setup.py egg_info

Output

$ pip list
Package    Version
---------- -------
pip        19.0.3 
setuptools 40.8.0

$ python -m pip list
Package    Version
---------- -------
foo        1.0.0  
pip        19.0.3 
setuptools 40.8.0