Import-im6.q16: неавторизованная ошибка 'os' @ error/constitue.c/WriteImage/1037 для парсера Python

Я написал простой парсер для сайта комиксов. Я запускаю его в Ubuntu (Linux ubuntu 4.18.0-16-generiC#17~18.04.1-Ubuntu), но когда я запускаю скрипт (права установлены на chmod ug+x), я продолжаю получать серию ошибок с импортированными системными библиотеками вместе с запутанной синтаксической ошибкой:

import-im6.q16: not authorized `time' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `os' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `sys' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `re' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `requests' @ error/constitute.c/WriteImage/1037.
from: can't read /var/mail/bs4
./poorlywrittenscraper.py: line 15: DEFAULT_DIR_NAME: command not found
./poorlywrittenscraper.py: line 16: syntax error near unexpected token `('
./poorlywrittenscraper.py: line 16: `COMICS_DIRECTORY = os.path.join(os.getcwd(), DEFAULT_DIR_NAME)'

Интересно, что когда я запускаю тот же скрипт через python3, он запускается, создает папку, загружает изображения, но... не сохраняет их. о.О

Есть идеи, что мне здесь не хватает или как это исправить?

Вот полный код скрипта:

"""
A simple image downloader for poorlydrawnlines.com/archive
"""
import time
import os
import sys
import re
import concurrent.futures


import requests
from bs4 import BeautifulSoup as bs


DEFAULT_DIR_NAME = "poorly_created_folder"
COMICS_DIRECTORY = os.path.join(os.getcwd(), DEFAULT_DIR_NAME)


LOGO = """
a Python comic(al) scraper for poorlydwarnlines.com
                         __
.-----.-----.-----.----.|  |.--.--.
|  _  |  _  |  _  |   _||  ||  |  |
|   __|_____|_____|__|  |__||___  |
|__|                        |_____|
                __ __   __
.--.--.--.----.|__|  |_|  |_.-----.-----.
|  |  |  |   _||  |   _|   _|  -__|     |
|________|__|  |__|____|____|_____|__|__|
.-----.----.----.---.-.-----.-----.----.
|__ --|  __|   _|  _  |  _  |  -__|   _|
|_____|____|__| |___._|   __|_____|__|
                      |__|
version: 0.4 | author: baduker | https://github.com/baduker
"""


ARCHIVE_URL = "http://www.poorlydrawnlines.com/archive/"
COMIC_PATTERN = re.compile(r'http://www.poorlydrawnlines.com/comic/.+')

def download_comics_menu(comics_found):
    """
    Main download menu, takes number of available comics for download
    """
    print("\nThe scraper has found {} comics.".format(len(comics_found)))
    print("How many comics do you want to download?")
    print("Type 0 to exit.")

    while True:
        try:
            comics_to_download = int(input(">> "))
        except ValueError:
            print("Error: expected a number. Try again.")
            continue
        if comics_to_download > len(comics_found) or comics_to_download < 0:
            print("Error: incorrect number of comics to download. Try again.")
            continue
        elif comics_to_download == 0:
            sys.exit()
        return comics_to_download


def grab_image_src_url(session, url):
    """
    Fetches urls with the comic image source
    """
    response = session.get(url)
    soup = bs(response.text, 'html.parser')
    for i in soup.find_all('p'):
        for img in i.find_all('img', src=True):
            return img['src']


def download_and_save_comic(session, url):
    """
    Downloads and saves the comic image
    """
    file_name = url.split('/')[-1]
    with open(os.path.join(COMICS_DIRECTORY, file_name), "wb") as file:
        response = session.get(url)
        file.write(response.content)


def fetch_comics_from_archive(session):
    """
    Grabs all urls from the poorlydrawnlines.com/archive and parses for only those that link to published comics
    """
    response = session.get(ARCHIVE_URL)
    soup = bs(response.text, 'html.parser')
    comics = [url.get("href") for url in soup.find_all("a")]
    return [url for url in comics if COMIC_PATTERN.match(url)]


def download_comic(session, url):
    """
    Download progress information
    """
    print("Downloading: {}".format(url))
    url = grab_image_src_url(session, url)
    download_and_save_comic(session, url)


def main():
    """
    Encapsulates and executes all methods in the main function
    """
    print(LOGO)

    session = requests.Session()

    comics = fetch_comics_from_archive(session)
    comics_to_download = download_comics_menu(comics)

    try:
        os.mkdir(DEFAULT_DIR_NAME)
    except OSError as exc:
        sys.exit("Failed to create directory (error_no {})".format(exc.error_no))

    start = time.time()
    with concurrent.futures.ThreadPoolExecutor() as executor:
        executor.map(lambda url: download_comic(session, url), comics[:comics_to_download])
    executor.shutdown()
    end = time.time()
    print("Finished downloading {} comics in {:.2f} sec.".format(comics_to_download, end - start))

if __name__ in "__main__":
    main()