Fix callback handling

pytchat/cli/__init__.py

@@ -88,8 +88,6 @@ def main():
 
         except InvalidVideoIdException:
             print("Invalid Video ID or URL:", video_id)
-        except TypeError as e:
-            print(e.with_traceback())
         except NoContents as e:
             print(e)
         except FileNotFoundError:

pytchat/processors/html_archiver.py

@@ -43,7 +43,7 @@ class HTMLArchiver(ChatProcessor):
     '''
     HTMLArchiver saves chat data as HTML table format.
     '''
-    def __init__(self, save_path, callback):
+    def __init__(self, save_path, callback=None):
         super().__init__()
         self.save_path = self._checkpath(save_path)
         self.processor = DefaultProcessor()
@@ -93,7 +93,8 @@ class HTMLArchiver(ChatProcessor):
                     c.author.channelId)
                 )
             )
-            self.callback(None, 1)
+            if self.callback:
+                self.callback(None, 1)
 
     def _parse_html_line(self, raw_line):
         return ''.join(('<tr>',