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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def detect_django_settings():
 """ Automatically try to discover Django settings files, return them as relative module paths. """


    matches = []
    for root, dirnames, filenames in os.walk(os.getcwd()):
        for filename in fnmatch.filter(filenames, '*settings.py'):
            full = os.path.join(root, filename)
            if 'site-packages' in full:
                continue
            full = os.path.join(root, filename)
            package_path = full.replace(os.getcwd(), '')
            package_module = package_path.replace(os.sep, '.').split('.', 1)[1].replace('.py', '')

            matches.append(package_module)
    return matches