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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 initialize():
 """Initialize a default config file if it doesn't exist yet. Returns: tuple: A tuple of (copied, dst_path). `copied` is a bool indicating if this function created the default config file. `dst_path` is the path of the user config file. """

    dst_path = get_user_config_path()
    copied = False
    if not os.path.exists(dst_path):
        src_path = os.path.join(os.path.dirname(__file__), 'defaultconfig.py')
        shutil.copyfile(src_path, dst_path)
        copied = True
    return copied, dst_path