YouTube Chat Extraction Example

This example notebook demonstrates how to extract live chat messages from YouTube videos using the pytchat library. Below is a step-by-step breakdown of each part of the code.

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1. Import Libraries

   import pytchat
   import json

2. Extract Chat Messages

   • Initializes a file to store chat messages.
   • Creates a pytchat object for a specific YouTube video.
   • Iterates through live chat messages and writes them to a file.

   # %%time
   f = open('mfPWbIcHtaM.txt', 'w')
   chat = pytchat.create(video_id="mfPWbIcHtaM")
   while chat.is_alive():
       for c in chat.get().items:
           obj = c.json()
           obj2 = json.loads(obj)
           f.write(str("{} {}: {}".format(obj2['author']['name'], obj2['datetime'], obj2['message']).encode('utf8')))
           f.write("\\n")
   f.close()

3. Output Example

   • Shows the structure of a chat message object.

   obj2

4. Another Chat Extraction Example

   • Similar setup for a different YouTube video.
   • Filters messages by author.
   • Writes filtered messages to a file.

   # %%time
   f = open('q3alUrfh6BI.txt', 'w')
   chat = pytchat.create(video_id="q3alUrfh6BI")
   while chat.is_alive():
       for c in chat.get().items:
           if 'Kyl' in c.json():
               obj = c.json()
               obj2 = json.loads(obj)
               print(obj2['author']['name'] + ': ' + obj2['message'])
           f.write(str("{}: {}".format(obj2['author']['name'], obj2['message']).encode('utf8')))
           f.write("\\n")
   f.close()