import os

import pathlib

def convert_array_to_poly(arr):

    """ Convert array of (x,y) coordinates, nx2, to

    a Polygon object for Polygon package

    Args:

      arr (np.array): Array of the polygon

    Returns:

      asn (list): The polygon in a list

    """

    return arr.flatten().tolist()

def create_dirs(base_path, dir_list=[]):

    """create dirs under the base path

    Args:

      base_path (str): The base of the directory paths

      dir_list (list[str]): List of paths relative to the base dir

    """

    pathlib.Path(base_path).mkdir(parents=True, exist_ok=True)

    for new_dir in dir_list:

        pathlib.Path(os.path.join(base_path, new_dir)).mkdir(parents=True)