Merge branch 'hotfix/cannot_fetch_at_0_multithread'

README.md

@@ -16,7 +16,7 @@ Other features:
 instead of web scraping.
 
 For more detailed information, see [wiki](https://github.com/taizan-hokuto/pytchat/wiki). <br>
-より詳細な解説は[wiki](https://github.com/taizan-hokuto/pytchat/wiki/Home-:)を参照してください。
+より詳細な解説は[wiki](https://github.com/taizan-hokuto/pytchat/wiki/Home_jp)を参照してください。
 
 ## Install
 ```python
@@ -267,4 +267,4 @@ Structure of author object.
 
 [taizan-hokuto](https://github.com/taizan-hokuto)
 
-[twitter:@taizan205](https://twitter.com/taizan205)
+[twitter:@taizan205](https://twitter.com/taizan205)

pytchat/__init__.py

@@ -2,7 +2,7 @@
 pytchat is a python library for fetching youtube live chat without using yt api, Selenium, or BeautifulSoup.
 """
 __copyright__    = 'Copyright (C) 2019 taizan-hokuto'
-__version__      = '0.0.5.1.3'
+__version__      = '0.0.5.3'
 __license__      = 'MIT'
 __author__       = 'taizan-hokuto'
 __author_email__ = '55448286+taizan-hokuto@users.noreply.github.com'

pytchat/core_async/livechat.py

@@ -73,7 +73,6 @@ class LiveChatAsync:
     '''
 
     _setup_finished = False
-    _logger = config.logger(__name__)
 
     def __init__(self, video_id,
                 seektime = 0,
@@ -233,6 +232,11 @@ class LiveChatAsync:
                     self.video_id, self.seektime, self._topchat_only)
                 livechat_json = (await  self._get_livechat_json(
                     continuation, session, headers))
+                reload_continuation = self._parser.reload_continuation(
+                    self._parser.get_contents(livechat_json))
+                if reload_continuation:
+                    livechat_json = (await  self._get_livechat_json(
+                        reload_continuation, session, headers))
                 contents = self._parser.get_contents(livechat_json)
             self._first_fetch = False
         return contents
@@ -244,8 +248,7 @@ class LiveChatAsync:
         continuation = urllib.parse.quote(continuation)
         livechat_json = None
         status_code = 0
-        url =(
-            f"https://www.youtube.com/{self._fetch_url}{continuation}&pbj=1")
+        url =f"https://www.youtube.com/{self._fetch_url}{continuation}&pbj=1"
         for _ in range(MAX_RETRY + 1):
             async with session.get(url ,headers = headers) as resp:
                 try:

pytchat/core_multithread/livechat.py

@@ -74,7 +74,6 @@ class LiveChat:
     _setup_finished = False
     #チャット監視中のListenerのリスト
     _listeners = []
-    _logger = config.logger(__name__)
 
     def __init__(self, video_id,
                 seektime = 0,
@@ -222,9 +221,15 @@ class LiveChat:
                 '''Try to fetch archive chat data.'''
                 self._parser.is_replay = True
                 self._fetch_url = "live_chat_replay/get_live_chat_replay?continuation="
-                continuation = arcparam.getparam(self.video_id, self.seektime)
+                continuation = arcparam.getparam(
+                    self.video_id, self.seektime, self._topchat_only)
                 livechat_json = ( self._get_livechat_json(
                     continuation, session, headers))
+                reload_continuation = self._parser.reload_continuation(
+                    self._parser.get_contents(livechat_json))
+                if reload_continuation:
+                    livechat_json = (self._get_livechat_json(
+                        reload_continuation, session, headers))
                 contents = self._parser.get_contents(livechat_json)
             self._first_fetch = False
         return contents

pytchat/parser/live.py

@@ -66,6 +66,23 @@ class Parser:
                 raise ChatParseException('Cannot extract continuation data')
         return self._create_data(metadata, contents)
 
+    def reload_continuation(self, contents):
+        """
+        When `seektime = 0` or seektime is abbreviated , 
+        check if fetched chat json has no chat data. 
+        If so, try to fetch playerSeekContinuationData. 
+        This function must be run only first fetching.
+        """
+        cont = contents['liveChatContinuation']['continuations'][0]
+        if cont.get("liveChatReplayContinuationData"):
+            #chat data exist.
+            return None
+        #chat data do not exist, get playerSeekContinuationData.
+        init_cont = cont.get("playerSeekContinuationData")
+        if init_cont:
+            return init_cont.get("continuation")
+        raise ChatParseException('Finished chat data')
+
     def _create_data(self, metadata, contents):    
         actions = contents['liveChatContinuation'].get('actions')
         if self.is_replay: