PYTHON : AttributeError: 'str' object has no attribute 'append'

PYTHON : AttributeError: 'str' object has no attribute 'append'
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to reveal a secret feature to you, and now it's time to share it.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
After that, type the word 'awesome' on your keyboard.
The progress bar on YouTube will be altered to a flashing rainbow.

Let me give you a quick introduction about myself,
Greetings, my name is Delphi.
Let me help you get the answers you need to your questions.
PYTHON : AttributeError: 'str' object has no attribute 'append'
If you need more specific answers, please reach out to me through comments or chat.
If you have additional information or an answer to contribute, please feel free to comment below.
Your answer will be acknowledged and appreciated, and I will 'heart' it as a sign of gratitude.
AttributeError: 'str' attribute 'append' PYTHON no has object :