Bulk upload

loader.py

import re
import itertools as it

def get_file_seq_num(filename: str) -> int:
    ''' CF0001.D00'''
    match = re.search(r"CF(\d{4}).D00", filename)
    if match:
        return int(match.group(1))
    return None

def get_file_name(seq: int) -> str:
    return f'CF{seq:04}.D00'

def get_file_list(last_file, current_file):
    for z in it.islice(it.cycle(range(1000)), 300, 325):
        print(z)

if __name__ == "__main__":
    print(get_file_name(327))
    print(get_file_seq_num('CF0999.D00'))
    get_file_list('CF0300.D00', 'CF0320.D00')