logfile: Pull logfile thread out of Logger. This enables automatic garbage collection of Logger instances, since a running thread no longer has a reference to a Logger's self. It separates exclusive management of logfile state into the _writer_thread function, which now opens the file and writes it until it is told to stop by receiving the poison pill.

import setuptools

setuptools.setup(
    name='weather-server',
    version='0.0.8',
    packages=setuptools.find_packages(),
    python_requires='>=3.7',
    install_requires=[
        'attrs',
        'flask',
        'flup',
        'pymongo',
        'pytz',
    ],
    setup_requires=['wheel'],
    include_package_data=True,
)