Django settings_local handler.

gistfile1.txt

# For local dev purposes, allow for importing of add'l settings from
# a settings_local.py file (over-rides any already set above)
if DEBUG:
    try:
        from settings_local import *
    except ImportError:
        pass
    else:

        # Special treatment for symbols in settings_local that begin with 'EXTRA_'.
        # Those are sequences that will be appended to the ones we've got already.
        import re
        import settings_local

        for attr in dir(settings_local):
            match = re.search('^EXTRA_(\w+)', attr)
            if match:
                name = match.group(1)
                value = getattr(settings_local, attr)
                if name in globals():
                    globals()[name] += value
                else:
                    globals()[name] = value