Several connection attempts (certain tracker are very unstable).

Replacing the "size" with "total_size" in "fingerprint".
Fix error of reading a missing parameter in the settings.
Fix #1 issue.

config.py

@@ -4,7 +4,7 @@
 import re
 from client import QBT, TM
 from os import path, getenv, mkdir
-from configparser import ConfigParser
+from configparser import ConfigParser, NoOptionError, NoSectionError
 
 
 def get_ids_from_file(update_file, tracker_ids):
@@ -146,7 +146,10 @@ def create_update_file(self):
         raise FileNotFoundError(f'Required to fill list of topics id in: {self.update_file}')
 
     def read_config(self, section, setting):
-        value = self.config.get(section, setting)
+        try:
+            value = self.config.get(section, setting)
+        except (NoSectionError, NoOptionError):
+            value = ''
         return value
 
     def get_ids(self):

torrent_updater.py

@@ -4,11 +4,60 @@
 import logging
 import requests
 from config import Conf
-from bencoder import bdecode
+from bencoder import bdecode, BTFailure
 from urllib.parse import urljoin
 from tracker import RuTracker, NNMClub, TeamHD, Kinozal, rss_parser
 
 
+def get_torrent(tracker):
+    torrent = None
+    torrent_name = None
+    for _ in range(5):
+        torrent = tracker.download_torrent()
+        try:
+            torrent_name = bdecode(torrent)[b'info'][b'name'].decode('UTF-8')
+        except BTFailure:
+            torrent = None
+        else:
+            break
+    return torrent_name, torrent
+
+
+def run_through_tracker(config, sessions, tracker, trackers):
+    for topic_id in config.tracker_ids[tracker]:
+        current_torrent = config.client.get_torrent_by_topic(tracker, topic_id)
+        fresh_tracker = trackers[tracker]['incarnation'](
+            auth=config.auth[tracker],
+            topic_id=topic_id,
+            session=sessions[tracker]
+        )
+        current_fingerprint = str(current_torrent[trackers[tracker]['fingerprint']]).lower()
+        if current_fingerprint != fresh_tracker.fingerprint.lower() and fresh_tracker.fingerprint:
+            new_torrent_name, new_torrent = get_torrent(fresh_tracker)
+            if new_torrent_name and new_torrent:
+                if not sessions[tracker] and fresh_tracker.session:
+                    sessions[tracker] = fresh_tracker.session
+                data = {
+                    'category': current_torrent['category'],
+                    'tags': current_torrent['tags'],
+                    'path': current_torrent['save_path'],
+                    'state': current_torrent['state'],
+                    'tracker': tracker,
+                    'topic_id': topic_id,
+                }
+                config.client.remove_torrent(current_torrent['hash'])
+                logging.info(
+                    f'The torrent {trackers[tracker]["fingerprint"]} in topic {fresh_tracker.topic_url} has changed. '
+                    f'Updating the torrent — {current_torrent["name"]}'
+                )
+                config.client.add_torrent(torrent=new_torrent, data=data)
+                if new_torrent_name != current_torrent['name']:
+                    logging.warning(
+                        f'The torrent name has changed: {current_torrent["name"]} → {new_torrent_name}. '
+                        f'Duplicate files may appear.'
+                    )
+
+
 def main():
     config = Conf()
     sessions = {}
@@ -25,13 +74,13 @@ def main():
         },
         'teamhd': {
             'incarnation': TeamHD,
-            'fingerprint': 'size',
+            'fingerprint': 'total_size',
             'rssjoin': 'rss.php?feed=dl&passkey=',
             'dl_from': 'feed',
         },
         'kinozal': {
             'incarnation': Kinozal,
-            'fingerprint': 'size',
+            'fingerprint': 'total_size',
             'dl_from': 'topic',
         },
     }
@@ -48,41 +97,11 @@ def main():
             rss_url = f'{rss_url}{config.auth[tracker]["passkey"]}'
             config.tracker_ids[tracker] = rss_parser(rss_url, config.tracker_ids[tracker])
     for tracker in config.tracker_ids.keys():
-        response = requests.get(config.auth[tracker]['url'])
-        tracker_status = response.status_code
-        if tracker_status == 200:
-            for topic_id in config.tracker_ids[tracker]:
-                current_torrent = config.client.get_torrent_by_topic(tracker, topic_id)
-                fresh_tracker = trackers[tracker]['incarnation'](
-                    auth=config.auth[tracker],
-                    topic_id=topic_id,
-                    session=sessions[tracker]
-                )
-                current_fingerprint = str(current_torrent[trackers[tracker]['fingerprint']]).lower()
-                if current_fingerprint != fresh_tracker.fingerprint.lower() and fresh_tracker.fingerprint:
-                    new_torrent = fresh_tracker.download_torrent()
-                    new_torrent_name = bdecode(new_torrent)[b'info'][b'name'].decode('UTF-8')
-                    if not sessions[tracker] and fresh_tracker.session:
-                        sessions[tracker] = fresh_tracker.session
-                    data = {
-                        'category': current_torrent['category'],
-                        'tags': current_torrent['tags'],
-                        'path': current_torrent['save_path'],
-                        'state': current_torrent['state'],
-                        'tracker': tracker,
-                        'topic_id': topic_id,
-                    }
-                    config.client.remove_torrent(current_torrent['hash'])
-                    logging.info(
-                        f'The torrent {trackers[tracker]["fingerprint"]} in topic {fresh_tracker.topic_url} has changed. '
-                        f'Updating the torrent — {current_torrent["name"]}'
-                    )
-                    config.client.add_torrent(torrent=new_torrent, data=data)
-                    if new_torrent_name != current_torrent['name']:
-                        logging.warning(
-                            f'The torrent name has changed: {current_torrent["name"]} → {new_torrent_name}. '
-                            f'Duplicate files may appear.'
-                        )
+        for _ in range(5):
+            response = requests.get(config.auth[tracker]['url'])
+            if response.status_code == 200:
+                run_through_tracker(config, sessions, tracker, trackers)
+                break
 
 
 if __name__ == '__main__':

tracker.py

@@ -184,14 +184,18 @@ def download_torrent(self):
         return torrent
 
     def get_actual_weight(self):
-        response = requests.get(self.topic_url)
-        topic = BeautifulSoup(response.text, features='html.parser')
-        try:
-            weight_field = topic.find('span', {'class': 'floatright green n'}).get_text()
-        except AttributeError:
-            weight = ''
-        else:
-            pattern = r'^[\s\./d\w]*\(([\d\,]*)\)$'
-            weight = re.match(pattern, weight_field).group(1)
-            weight = weight.replace(',', '')
+        weight = ''
+        for _ in range(5):
+            response = requests.get(self.topic_url)
+            topic = BeautifulSoup(response.text, features='html.parser')
+            try:
+                weight_field = topic.find('span', {'class': 'floatright green n'}).get_text()
+            except AttributeError:
+                pass
+            else:
+                pattern = r'^[\s\./d\w]*\(([\d\,]*)\)$'
+                weight = re.match(pattern, weight_field).group(1)
+                weight = weight.replace(',', '')
+            if weight:
+                break
         return weight