when working with breeze I saw these warnings many times in the logs:

 ```
 =============================== warnings summary ===============================
  tests/providers/amazon/aws/log/test_cloudwatch_task_handler.py::TestCloudwatchTaskHandler::test_close_prevents_duplicate_calls
    /usr/local/lib/python3.6/site-packages/jose/backends/cryptography_backend.py:18: CryptographyDeprecationWarning: int_from_bytes is deprecated, use int.from_bytes instead
      from cryptography.utils import int_from_bytes, int_to_bytes
      
 tests/always/test_example_dags.py::TestExampleDags::test_should_be_importable
    /usr/local/lib/python3.6/importlib/_bootstrap.py:219: RuntimeWarning: numpy.ufunc size changed, may indicate binary incompatibility. Expected 192 from C header, got 216 from PyObject
      return f(*args, **kwds)
  
  tests/always/test_example_dags.py::TestExampleDags::test_should_be_importable
    /usr/local/lib/python3.6/site-packages/scrapbook/__init__.py:8: FutureWarning: 'nteract-scrapbook' package has been renamed to `scrapbook`. No new releases are going out for this old package name.
      warnings.warn("'nteract-scrapbook' package has been renamed to `scrapbook`. No new releases are going out for this old package name.", FutureWarning)
```
     
setup.py
#
#
#
"""Setup.py for the Airflow project."""
import glob
import logging
import os
import subprocess
import unittest
from copy import deepcopy
from distutils import log
from os.path import dirname, relpath
from textwrap import wrap
from typing import Dict, List, Tuple
from setuptools import Command, Distribution, find_namespace_packages, setup
from setuptools.command.develop import develop as develop_orig
from setuptools.command.install import install as install_orig
INSTALL_PROVIDERS_FROM_SOURCES = 'INSTALL_PROVIDERS_FROM_SOURCES'
logger = logging.getLogger(__name__)
version = '2.1.0.dev0'
my_dir = dirname(__file__)
def airflow_test_suite() -> unittest.TestSuite:
    """Test suite for Airflow tests"""
    test_loader = unittest.TestLoader()
    test_suite = test_loader.discover(os.path.join(my_dir, 'tests'), pattern='test_*.py')
    return test_suite
class CleanCommand(Command):