Setup.py fails to install and missing dependencies

[ranyishere]

System Information

• Python 3.7.5
• Linux (debian)
• 5.4.0-64-generic

Describe the current behavior
Running python setup.py install in a virtual environment fails to install. This is due to errors about install pyrl and version problems with pillow and chardet. After fixing the aforementioned issues, tests fail because of missing pytest dependency.

Describe the expected behavior
Creating a virtual environment and running python setup.py install should work out of the box with no errors. Tests should also work without getting an issue about missing dependency.

Standalone code to reproduce the issue

virtualenv --clear --python=python3.7 venv
source venv/bin/activate
python setup.py install

Below is my fix for the setup.py

from distutils.core import setup

from setuptools import find_packages

opencv_pkg = ""
if "DISPLAY" not in os.environ.keys():
    opencv_pkg = "opencv-python-headless"
else:
    opencv_pkg = "opencv-python"

setup(
    name="vsrl",
    version="0.0.1",
    description="Visceral: A Framework for Verifiably Safe Reinforcement Learning",
    author="IBM Research",
    author_email="visceral@safelearning.ai",
    url="https://visceral.safelearning.ai",
    packages=find_packages(),
    install_requires=[
        "scipy",
        "numpy",
        "torch",
        "pillow==7.2.0",
        "chardet==3.0.4",
        opencv_pkg,
        "pytorch_lightning",
        "comet_ml",
        "psutil",
        "torchvision",
        "parsimonious",
        "matplotlib",
        "portion",
        "toml",
        "auto-argparse",
        "gym",
        "pytest",
    ],
    extras_require={"dev": ["pytest", "pytest-cov"]},
    dependency_links=["http://github.com/astooke/rlpyt/tarball/master"]
)