From 2adf8ccc9d52b926aa95c6803259961b61b5209b Mon Sep 17 00:00:00 2001
From: Ricter Z <ricterzheng@gmail.com>
Date: Sun, 5 Feb 2023 23:13:47 +0800
Subject: [PATCH] reformat files #266

---
 nhentai/command.py    | 18 +++++-----
 nhentai/constant.py   | 36 +++++++++-----------
 nhentai/doujinshi.py  | 15 ++++-----
 nhentai/downloader.py | 76 ++++++++++++++++++++-----------------------
 nhentai/logger.py     |  4 +--
 nhentai/parser.py     | 49 ++++++++++++++--------------
 nhentai/serializer.py | 10 +++---
 nhentai/utils.py      | 14 ++++----
 requirements.txt      |  3 ++
 9 files changed, 105 insertions(+), 120 deletions(-)

diff --git a/nhentai/command.py b/nhentai/command.py
index fc5f29e..ba4b8a8 100644
--- a/nhentai/command.py
+++ b/nhentai/command.py
@@ -1,10 +1,7 @@
-#!/usr/bin/env python2.7
 # coding: utf-8
-
 import sys
 import signal
 import platform
-import time
 
 from nhentai import constant
 from nhentai.cmdline import cmd_parser, banner
@@ -25,16 +22,16 @@ def main():
         exit(1)
 
     options = cmd_parser()
-    logger.info('Using mirror: {0}'.format(BASE_URL))
+    logger.info(f'Using mirror: {BASE_URL}')
 
     # CONFIG['proxy'] will be changed after cmd_parser()
     if constant.CONFIG['proxy']['http']:
-        logger.info('Using proxy: {0}'.format(constant.CONFIG['proxy']['http']))
+        logger.info(f'Using proxy: {constant.CONFIG["proxy"]["http"]}')
 
     if not constant.CONFIG['template']:
         constant.CONFIG['template'] = 'default'
 
-    logger.info('Using viewer template "{}"'.format(constant.CONFIG['template']))
+    logger.info(f'Using viewer template "{constant.CONFIG["template"]}"')
 
     # check your cookie
     check_cookie()
@@ -53,8 +50,8 @@ def main():
 
     elif options.keyword:
         if constant.CONFIG['language']:
-            logger.info('Using default language: {0}'.format(constant.CONFIG['language']))
-            options.keyword += ' language:{}'.format(constant.CONFIG['language'])
+            logger.info(f'Using default language: {constant.CONFIG["language"]}')
+            options.keyword += f' language:{constant.CONFIG["language"]}'
 
         _search_parser = legacy_search_parser if options.legacy else search_parser
         doujinshis = _search_parser(options.keyword, sorting=options.sorting, page=page_list,
@@ -121,7 +118,8 @@ def main():
             doujinshi.show()
 
 
-signal.signal(signal.SIGINT, signal_handler)
-
 if __name__ == '__main__':
+    import urllib3.exceptions
+    urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
+    signal.signal(signal.SIGINT, signal_handler)
     main()
diff --git a/nhentai/constant.py b/nhentai/constant.py
index 435ac78..680fef6 100644
--- a/nhentai/constant.py
+++ b/nhentai/constant.py
@@ -1,30 +1,24 @@
 # coding: utf-8
-
 import os
 import tempfile
 
-try:
-    from urlparse import urlparse
-except ImportError:
-    from urllib.parse import urlparse
-
+from urllib.parse import urlparse
 
 BASE_URL = os.getenv('NHENTAI', 'https://nhentai.net')
 
-__api_suspended_DETAIL_URL = '%s/api/gallery' % BASE_URL
+__api_suspended_DETAIL_URL = f'{BASE_URL}/api/gallery'
 
-DETAIL_URL = '%s/g' % BASE_URL
-LEGACY_SEARCH_URL = '%s/search/' % BASE_URL
-SEARCH_URL = '%s/api/galleries/search' % BASE_URL
+DETAIL_URL = f'{BASE_URL}/g'
+LEGACY_SEARCH_URL = f'{BASE_URL}/search/'
+SEARCH_URL = f'{BASE_URL}/api/galleries/search'
 
-
-TAG_API_URL = '%s/api/galleries/tagged' % BASE_URL
-LOGIN_URL = '%s/login/' % BASE_URL
-CHALLENGE_URL = '%s/challenge' % BASE_URL
-FAV_URL = '%s/favorites/' % BASE_URL
+TAG_API_URL = f'{BASE_URL}/api/galleries/tagged'
+LOGIN_URL = f'{BASE_URL}/login/'
+CHALLENGE_URL = f'{BASE_URL}/challenge'
+FAV_URL = f'{BASE_URL}/favorites/'
 
 u = urlparse(BASE_URL)
-IMAGE_URL = '%s://i.%s/galleries' % (u.scheme, u.hostname)
+IMAGE_URL = f'{u.scheme}://i.{u.hostname}/galleries'
 
 NHENTAI_HOME = os.path.join(os.getenv('HOME', tempfile.gettempdir()), '.nhentai')
 NHENTAI_HISTORY = os.path.join(NHENTAI_HOME, 'history.sqlite3')
@@ -38,9 +32,9 @@ CONFIG = {
     'useragent': 'nhentai command line client (https://github.com/RicterZ/nhentai)'
 }
 
-LANGUAGEISO ={
-    'english' : 'en',
-    'chinese' : 'zh',
-    'japanese' : 'ja',
-    'translated' : 'translated'
+LANGUAGEISO = {
+    'english': 'en',
+    'chinese': 'zh',
+    'japanese': 'ja',
+    'translated': 'translated'
 }
diff --git a/nhentai/doujinshi.py b/nhentai/doujinshi.py
index 66fa45b..e0a36e3 100644
--- a/nhentai/doujinshi.py
+++ b/nhentai/doujinshi.py
@@ -35,7 +35,7 @@ class Doujinshi(object):
         self.ext = ext
         self.pages = pages
         self.downloader = None
-        self.url = '%s/%d' % (DETAIL_URL, self.id)
+        self.url = f'{DETAIL_URL}/{self.id}'
         self.info = DoujinshiInfo(**kwargs)
 
         name_format = name_format.replace('%i', format_filename(str(self.id)))
@@ -59,23 +59,22 @@ class Doujinshi(object):
         ]
 
     def __repr__(self):
-        return '<Doujinshi: {0}>'.format(self.name)
+        return f'<Doujinshi: {self.name}>'
 
     def show(self):
-
-        logger.info(u'Print doujinshi information of {0}\n{1}'.format(self.id, tabulate(self.table)))
+        logger.info(f'Print doujinshi information of {self.id}\n{tabulate(self.table)}')
 
     def download(self, regenerate_cbz=False):
-        logger.info('Starting to download doujinshi: %s' % self.name)
+        logger.info(f'Starting to download doujinshi: {self.name}')
         if self.downloader:
             download_queue = []
             if len(self.ext) != self.pages:
                 logger.warning('Page count and ext count do not equal')
 
             for i in range(1, min(self.pages, len(self.ext)) + 1):
-                download_queue.append('%s/%d/%d.%s' % (IMAGE_URL, int(self.img_id), i, self.ext[i - 1]))
+                download_queue.append(f'{IMAGE_URL}/{self.img_id}/{i}.{self.ext[i-1]}')
 
-            self.downloader.download(download_queue, self.filename, regenerate_cbz=regenerate_cbz)
+            self.downloader.start_download(download_queue, self.filename, regenerate_cbz=regenerate_cbz)
         else:
             logger.critical('Downloader has not been loaded')
 
@@ -87,4 +86,4 @@ if __name__ == '__main__':
     try:
         test.download()
     except Exception as e:
-        print('Exception: %s' % str(e))
+        print(f'Exception: {e}')
diff --git a/nhentai/downloader.py b/nhentai/downloader.py
index b0b6a6a..db144b5 100644
--- a/nhentai/downloader.py
+++ b/nhentai/downloader.py
@@ -3,23 +3,18 @@
 import multiprocessing
 import signal
 
-from future.builtins import str as text
 import sys
 import os
 import requests
 import time
 
-try:
-    from urllib.parse import urlparse
-except ImportError:
-    from urlparse import urlparse
-
+from urllib.parse import urlparse
 from nhentai import constant
 from nhentai.logger import logger
 from nhentai.parser import request
 from nhentai.utils import Singleton
 
-requests.packages.urllib3.disable_warnings()
+
 semaphore = multiprocessing.Semaphore(1)
 
 
@@ -27,6 +22,22 @@ class NHentaiImageNotExistException(Exception):
     pass
 
 
+def download_callback(result):
+    result, data = result
+    if result == 0:
+        logger.warning('fatal errors occurred, ignored')
+        # exit(1)
+    elif result == -1:
+        logger.warning(f'url {data} return status code 404')
+    elif result == -2:
+        logger.warning('Ctrl-C pressed, exiting sub processes ...')
+    elif result == -3:
+        # workers won't be run, just pass
+        pass
+    else:
+        logger.log(15, f'{data} downloaded successfully')
+
+
 class Downloader(Singleton):
 
     def __init__(self, path='', size=5, timeout=30, delay=0):
@@ -35,20 +46,21 @@ class Downloader(Singleton):
         self.timeout = timeout
         self.delay = delay
 
-    def download_(self, url, folder='', filename='', retried=0, proxy=None):
+    def download(self, url, folder='', filename='', retried=0, proxy=None):
         if self.delay:
             time.sleep(self.delay)
-        logger.info('Starting to download {0} ...'.format(url))
+        logger.info(f'Starting to download {url} ...')
         filename = filename if filename else os.path.basename(urlparse(url).path)
         base_filename, extension = os.path.splitext(filename)
+
+        save_file_path = os.path.join(folder, base_filename.zfill(3) + extension)
         try:
-            if os.path.exists(os.path.join(folder, base_filename.zfill(3) + extension)):
-                logger.warning('File: {0} exists, ignoring'.format(os.path.join(folder, base_filename.zfill(3) +
-                                                                                extension)))
+            if os.path.exists(save_file_path):
+                logger.warning(f'Ignored exists file: {save_file_path}')
                 return 1, url
 
             response = None
-            with open(os.path.join(folder, base_filename.zfill(3) + extension), "wb") as f:
+            with open(save_file_path, "wb") as f:
                 i = 0
                 while i < 10:
                     try:
@@ -77,14 +89,14 @@ class Downloader(Singleton):
 
         except (requests.HTTPError, requests.Timeout) as e:
             if retried < 3:
-                logger.warning('Warning: {0}, retrying({1}) ...'.format(str(e), retried))
-                return 0, self.download_(url=url, folder=folder, filename=filename,
-                                         retried=retried+1, proxy=proxy)
+                logger.warning(f'Warning: {e}, retrying({retried}) ...')
+                return 0, self.download(url=url, folder=folder, filename=filename,
+                                        retried=retried+1, proxy=proxy)
             else:
                 return 0, None
 
         except NHentaiImageNotExistException as e:
-            os.remove(os.path.join(folder, base_filename.zfill(3) + extension))
+            os.remove(save_file_path)
             return -1, url
 
         except Exception as e:
@@ -98,23 +110,8 @@ class Downloader(Singleton):
 
         return 1, url
 
-    def _download_callback(self, result):
-        result, data = result
-        if result == 0:
-            logger.warning('fatal errors occurred, ignored')
-            # exit(1)
-        elif result == -1:
-            logger.warning('url {} return status code 404'.format(data))
-        elif result == -2:
-            logger.warning('Ctrl-C pressed, exiting sub processes ...')
-        elif result == -3:
-            # workers wont be run, just pass
-            pass
-        else:
-            logger.log(15, '{0} downloaded successfully'.format(data))
-
-    def download(self, queue, folder='', regenerate_cbz=False):
-        if not isinstance(folder, text):
+    def start_download(self, queue, folder='', regenerate_cbz=False):
+        if not isinstance(folder, (str, )):
             folder = str(folder)
 
         if self.path:
@@ -122,18 +119,17 @@ class Downloader(Singleton):
 
         if os.path.exists(folder + '.cbz'):
             if not regenerate_cbz:
-                logger.warning('CBZ file \'{}.cbz\' exists, ignored download request'.format(folder))
+                logger.warning(f'CBZ file "{folder}.cbz" exists, ignored download request')
                 return
 
         if not os.path.exists(folder):
-            logger.warning('Path \'{0}\' does not exist, creating.'.format(folder))
             try:
                 os.makedirs(folder)
             except EnvironmentError as e:
-                logger.critical('{0}'.format(str(e)))
+                logger.critical(str(e))
 
         else:
-            logger.warning('Path \'{0}\' already exist.'.format(folder))
+            logger.warning(f'Path "{folder}" already exist.')
 
         queue = [(self, url, folder, constant.CONFIG['proxy']) for url in queue]
 
@@ -146,7 +142,7 @@ class Downloader(Singleton):
 
 def download_wrapper(obj, url, folder='', proxy=None):
     if sys.platform == 'darwin' or semaphore.get_value():
-        return Downloader.download_(obj, url=url, folder=folder, proxy=proxy)
+        return Downloader.download(obj, url=url, folder=folder, proxy=proxy)
     else:
         return -3, None
 
@@ -155,7 +151,7 @@ def init_worker():
     signal.signal(signal.SIGINT, subprocess_signal)
 
 
-def subprocess_signal(signal, frame):
+def subprocess_signal(sig, frame):
     if semaphore.acquire(timeout=1):
         logger.warning('Ctrl-C pressed, exiting sub processes ...')
 
diff --git a/nhentai/logger.py b/nhentai/logger.py
index e7585a0..f0a53ca 100644
--- a/nhentai/logger.py
+++ b/nhentai/logger.py
@@ -146,12 +146,10 @@ class ColorizingStreamHandler(logging.StreamHandler):
             if params and message:
                 if message.lstrip() != message:
                     prefix = re.search(r"\s+", message).group(0)
-                    message = message[len(prefix):]
                 else:
                     prefix = ""
 
-                message = "%s%s" % (prefix, ''.join((self.csi, ';'.join(params),
-                                    'm', message, self.reset)))
+                message += prefix + ''.join((self.csi, ';'.join(params), 'm', message, self.reset))
 
         return message
 
diff --git a/nhentai/parser.py b/nhentai/parser.py
index ef4dfc7..6c1ab53 100644
--- a/nhentai/parser.py
+++ b/nhentai/parser.py
@@ -26,7 +26,7 @@ def login(username, password):
         logger.info('Getting CSRF token ...')
 
     if os.getenv('DEBUG'):
-        logger.info('CSRF token is {}'.format(csrf_token))
+        logger.info(f'CSRF token is {csrf_token}')
 
     login_dict = {
         'csrfmiddlewaretoken': csrf_token,
@@ -56,7 +56,7 @@ def _get_title_and_id(response):
         doujinshi_container = doujinshi.find('div', attrs={'class': 'caption'})
         title = doujinshi_container.text.strip()
         title = title if len(title) < 85 else title[:82] + '...'
-        id_ = re.search('/g/(\d+)/', doujinshi.a['href']).group(1)
+        id_ = re.search('/g/([0-9]+)/', doujinshi.a['href']).group(1)
         result.append({'id': id_, 'title': title})
 
     return result
@@ -67,7 +67,7 @@ def favorites_parser(page=None):
     html = BeautifulSoup(request('get', constant.FAV_URL).content, 'html.parser')
     count = html.find('span', attrs={'class': 'count'})
     if not count:
-        logger.error("Can't get your number of favorited doujins. Did the login failed?")
+        logger.error("Can't get your number of favorite doujinshis. Did the login failed?")
         return []
 
     count = int(count.text.strip('(').strip(')').replace(',', ''))
@@ -84,7 +84,7 @@ def favorites_parser(page=None):
         else:
             pages = 1
 
-        logger.info('You have %d favorites in %d pages.' % (count, pages))
+        logger.info(f'You have {count} favorites in {pages} pages.')
 
         if os.getenv('DEBUG'):
             pages = 1
@@ -93,40 +93,40 @@ def favorites_parser(page=None):
 
     for page in page_range_list:
         try:
-            logger.info('Getting doujinshi ids of page %d' % page)
-            resp = request('get', constant.FAV_URL + '?page=%d' % page).content
+            logger.info(f'Getting doujinshi ids of page {page}')
+            resp = request('get', f'{constant.FAV_URL}?page={page}').content
 
             result.extend(_get_title_and_id(resp))
         except Exception as e:
-            logger.error('Error: %s, continue', str(e))
+            logger.error(f'Error: {e}, continue')
 
     return result
 
 
 def doujinshi_parser(id_):
     if not isinstance(id_, (int,)) and (isinstance(id_, (str,)) and not id_.isdigit()):
-        raise Exception('Doujinshi id({0}) is not valid'.format(id_))
+        raise Exception(f'Doujinshi id({id_}) is not valid')
 
     id_ = int(id_)
-    logger.log(15, 'Fetching doujinshi information of id {0}'.format(id_))
+    logger.log(15, f'Fetching doujinshi information of id {id_}')
     doujinshi = dict()
     doujinshi['id'] = id_
-    url = '{0}/{1}/'.format(constant.DETAIL_URL, id_)
+    url = f'{constant.DETAIL_URL}/{id_}/'
 
     try:
         response = request('get', url)
         if response.status_code in (200, ):
             response = response.content
         elif response.status_code in (404,):
-            logger.error("Doujinshi with id {0} cannot be found".format(id_))
+            logger.error(f'Doujinshi with id {id_} cannot be found')
             return []
         else:
-            logger.debug('Slow down and retry ({}) ...'.format(id_))
+            logger.debug(f'Slow down and retry ({id_}) ...')
             time.sleep(1)
             return doujinshi_parser(str(id_))
 
     except Exception as e:
-        logger.warning('Error: {}, ignored'.format(str(e)))
+        logger.warning(f'Error: {e}, ignored')
         return None
 
     html = BeautifulSoup(response, 'html.parser')
@@ -179,7 +179,7 @@ def doujinshi_parser(id_):
 
 
 def legacy_search_parser(keyword, sorting, page, is_page_all=False):
-    logger.debug('Searching doujinshis of keyword {0}'.format(keyword))
+    logger.debug(f'Searching doujinshis of keyword {keyword}')
 
     response = None
     result = []
@@ -189,13 +189,13 @@ def legacy_search_parser(keyword, sorting, page, is_page_all=False):
         page = [1]
 
     for p in page:
-        logger.debug('Fetching page {} ...'.format(p))
+        logger.debug(f'Fetching page {p} ...')
         response = request('get', url=constant.LEGACY_SEARCH_URL,
                            params={'q': keyword, 'page': p, 'sort': sorting}).content
         result.extend(_get_title_and_id(response))
 
     if not result:
-        logger.warning('Not found anything of keyword {} on page {}'.format(keyword, page[0]))
+        logger.warning(f'Not found anything of keyword {keyword} on page {page[0]}')
         return result
 
     if is_page_all:
@@ -219,12 +219,11 @@ def print_doujinshi(doujinshi_list):
         return
     doujinshi_list = [(i['id'], i['title']) for i in doujinshi_list]
     headers = ['id', 'doujinshi']
-    logger.info('Search Result || Found %i doujinshis \n' % doujinshi_list.__len__() +
+    logger.info(f'Search Result || Found {doujinshi_list.__len__()} doujinshis \n' +
                 tabulate(tabular_data=doujinshi_list, headers=headers, tablefmt='rst'))
 
 
 def search_parser(keyword, sorting, page, is_page_all=False):
-    # keyword = '+'.join([i.strip().replace(' ', '-').lower() for i in keyword.split(',')])
     result = []
     response = None
     if not page:
@@ -235,12 +234,12 @@ def search_parser(keyword, sorting, page, is_page_all=False):
         init_response = request('get', url.replace('%2B', '+')).json()
         page = range(1, init_response['num_pages']+1)
 
-    total = '/{0}'.format(page[-1]) if is_page_all else ''
+    total = f'/{page[-1]}' if is_page_all else ''
     not_exists_persist = False
     for p in page:
         i = 0
 
-        logger.info('Searching doujinshis using keywords "{0}" on page {1}{2}'.format(keyword, p, total))
+        logger.info(f'Searching doujinshis using keywords "{keyword}" on page {p}{total}')
         while i < 3:
             try:
                 url = request('get', url=constant.SEARCH_URL, params={'query': keyword,
@@ -252,7 +251,7 @@ def search_parser(keyword, sorting, page, is_page_all=False):
             break
 
         if response is None or 'result' not in response:
-            logger.warning('No result in response in page {}'.format(p))
+            logger.warning(f'No result in response in page {p}')
             if not_exists_persist is True:
                 break
             continue
@@ -264,20 +263,20 @@ def search_parser(keyword, sorting, page, is_page_all=False):
 
         not_exists_persist = False
         if not result:
-            logger.warning('No results for keywords {}'.format(keyword))
+            logger.warning(f'No results for keywords {keyword}')
 
     return result
 
 
 def __api_suspended_doujinshi_parser(id_):
     if not isinstance(id_, (int,)) and (isinstance(id_, (str,)) and not id_.isdigit()):
-        raise Exception('Doujinshi id({0}) is not valid'.format(id_))
+        raise Exception(f'Doujinshi id({id_}) is not valid')
 
     id_ = int(id_)
-    logger.log(15, 'Fetching information of doujinshi id {0}'.format(id_))
+    logger.log(15, f'Fetching information of doujinshi id {id_}')
     doujinshi = dict()
     doujinshi['id'] = id_
-    url = '{0}/{1}'.format(constant.DETAIL_URL, id_)
+    url = f'{constant.DETAIL_URL}/{id_}'
     i = 0
     while 5 > i:
         try:
diff --git a/nhentai/serializer.py b/nhentai/serializer.py
index 07f9583..bf5b12e 100644
--- a/nhentai/serializer.py
+++ b/nhentai/serializer.py
@@ -5,7 +5,7 @@ from xml.sax.saxutils import escape
 from nhentai.constant import LANGUAGEISO
 
 
-def serialize_json(doujinshi, dir):
+def serialize_json(doujinshi, output_dir):
     metadata = {'title': doujinshi.name,
                 'subtitle': doujinshi.info.subtitle}
     if doujinshi.info.date:
@@ -26,13 +26,13 @@ def serialize_json(doujinshi, dir):
     metadata['URL'] = doujinshi.url
     metadata['Pages'] = doujinshi.pages
 
-    with open(os.path.join(dir, 'metadata.json'), 'w') as f:
+    with open(os.path.join(output_dir, 'metadata.json'), 'w') as f:
         json.dump(metadata, f, separators=(',', ':'))
 
 
-def serialize_comic_xml(doujinshi, dir):
+def serialize_comic_xml(doujinshi, output_dir):
     from iso8601 import parse_date
-    with open(os.path.join(dir, 'ComicInfo.xml'), 'w', encoding="utf-8") as f:
+    with open(os.path.join(output_dir, 'ComicInfo.xml'), 'w', encoding="utf-8") as f:
         f.write('<?xml version="1.0" encoding="utf-8"?>\n')
         f.write('<ComicInfo xmlns:xsd="http://www.w3.org/2001/XMLSchema" '
                 'xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">\n')
@@ -74,7 +74,7 @@ def serialize_comic_xml(doujinshi, dir):
 
 
 def xml_write_simple_tag(f, name, val, indent=1):
-    f.write('{}<{}>{}</{}>\n'.format(' ' * indent, name, escape(str(val)), name))
+    f.write(f'{" "*indent}<{name}>{escape(str(val))}</{name}>\n')
 
 
 def merge_json():
diff --git a/nhentai/utils.py b/nhentai/utils.py
index 452c708..b3d405e 100644
--- a/nhentai/utils.py
+++ b/nhentai/utils.py
@@ -86,7 +86,7 @@ def generate_html(output_dir='.', doujinshi_obj=None, template='default'):
         try:
             os.makedirs(doujinshi_dir)
         except EnvironmentError as e:
-            logger.critical('{0}'.format(str(e)))
+            logger.critical(e)
 
     file_list = os.listdir(doujinshi_dir)
     file_list.sort()
@@ -96,15 +96,13 @@ def generate_html(output_dir='.', doujinshi_obj=None, template='default'):
             continue
         image_html += f'<img src="{image}" class="image-item"/>\n'
 
-    html = readfile('viewer/{}/index.html'.format(template))
-    css = readfile('viewer/{}/styles.css'.format(template))
-    js = readfile('viewer/{}/scripts.js'.format(template))
+    html = readfile(f'viewer/{template}/index.html')
+    css = readfile(f'viewer/{template}/styles.css')
+    js = readfile(f'viewer/{template}/scripts.js')
 
     if doujinshi_obj is not None:
         serialize_json(doujinshi_obj, doujinshi_dir)
         name = doujinshi_obj.name
-        if sys.version_info < (3, 0):
-            name = doujinshi_obj.name.encode('utf-8')
     else:
         name = {'title': 'nHentai HTML Viewer'}
 
@@ -187,7 +185,7 @@ def generate_cbz(output_dir='.', doujinshi_obj=None, rm_origin_dir=False, write_
         doujinshi_dir = os.path.join(output_dir, doujinshi_obj.filename)
         if write_comic_info:
             serialize_comic_xml(doujinshi_obj, doujinshi_dir)
-        cbz_filename = os.path.join(os.path.join(doujinshi_dir, '..'), '{}.cbz'.format(doujinshi_obj.filename))
+        cbz_filename = os.path.join(os.path.join(doujinshi_dir, '..'), f'{doujinshi_obj.filename}.cbz')
     else:
         cbz_filename = './doujinshi.cbz'
         doujinshi_dir = '.'
@@ -195,7 +193,7 @@ def generate_cbz(output_dir='.', doujinshi_obj=None, rm_origin_dir=False, write_
     file_list = os.listdir(doujinshi_dir)
     file_list.sort()
 
-    logger.info('Writing CBZ file to path: {}'.format(cbz_filename))
+    logger.info(f'Writing CBZ file to path: {cbz_filename}')
     with zipfile.ZipFile(cbz_filename, 'w') as cbz_pf:
         for image in file_list:
             image_path = os.path.join(doujinshi_dir, image)
diff --git a/requirements.txt b/requirements.txt
index 4f63684..b99717f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,6 @@ BeautifulSoup4>=4.0.0
 tabulate>=0.7.5
 future>=0.15.2
 iso8601 >= 0.1
+
+urllib3~=1.26.9
+setuptools~=60.2.0
\ No newline at end of file