collect and rename first csv files found under given subdirectories

csvcollector.py

import argparse
import os
import glob
import shutil

def dir_path(path):
    if os.path.isdir(path):
        return path
    else:
        raise argparse.ArgumentTypeError(f"{path} is not a valid path")

parser = argparse.ArgumentParser(description='Collect csv files under subdirectories')
parser.add_argument('fileroot', nargs='?', type=dir_path, help='working path', default=os.getcwd())
fileroot = parser.parse_args().fileroot

subdirs= [ d for d in os.listdir(fileroot) if os.path.isdir(os.path.join(fileroot, d))] 
for sd in subdirs:
    csvs = glob.glob(os.path.join(fileroot, sd, '**', '*.csv'), recursive=True)
    #if not empty
    if(csvs):
        copy_src = os.path.abspath(csvs[0]) # copy the first csv file found to the working directory
        copy_dest = os.path.join(os.getcwd(), sd + '.csv')
        print(f'copy file {copy_src} to {copy_dest}')
        shutil.copyfile(copy_src, copy_dest)
        

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