# Django 2.2.9.dev20191202104323 文档

# django 源代码

    from django.utils.version import get_version

    VERSION = (2, 2, 9, 'alpha', 0)

    __version__ = get_version(VERSION)

    def setup(set_prefix=True):
        """
        Configure the settings (this happens as a side effect of accessing the
        first setting), configure logging and populate the app registry.
        Set the thread-local urlresolvers script prefix if `set_prefix` is True.
        """
        from django.apps import apps
        from django.conf import settings
        from django.urls import set_script_prefix
        from django.utils.log import configure_logging

        configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
        if set_prefix:
            set_script_prefix(
                '/' if settings.FORCE_SCRIPT_NAME is None else settings.FORCE_SCRIPT_NAME
            )
        apps.populate(settings.INSTALLED_APPS)