Trying to create an addon for a pop up window for a particular field

I want to create a floating window in Anki that displays the contents of a specific field, such as ‘Note,’ during card review. I want this because i have fairly large text in my cards, i want to see where this card belongs to. For example : i want this special field to show chapter name or historic sequence,…mind map, some repeated formula of this chapter… etc. I am a complete noob to coding, following is a code generated by Chatgpt. It’s able to create a pop window but it is always showing no card being reviewed.
Any help is appreciated!!
The pop up window should be something like this

Version ⁨2.1.66 (70506aeb)⁩
Python 3.9.15 Qt 6.5.0 PyQt 6.5.0

The following is a code from chatgpt but isn’t working.

from aqt import mw, gui_hooks
from anki.hooks import addHook
from PyQt6.QtWidgets import QDockWidget, QLabel, QVBoxLayout, QWidget
from PyQt6.QtCore import Qt

# ... (rest of your code)

# Function to create and display the floating QDockWidget
def display_field_contents_on_home_screen():
    global target_field_name

    # Check if a card is being actively reviewed
    if mw.reviewer and mw.reviewer.card:
        # Get the current card being reviewed
        card_id =
        card = mw.col.getCard(card_id)

        # Check if the target field exists on the current card
        if target_field_name in card.keys():
            field_contents = card[Note]
            field_contents = "Field not found on this card."
        field_contents = "No card being reviewed."

    # Create a QDockWidget and set it to be floatable
    dock = QtWidgets.QDockWidget()

    # Create a label to display the field contents
    label = QtWidgets.QLabel(field_contents)

    # Set up the layout and add the label
    layout = QtWidgets.QVBoxLayout()

    # Create a widget to hold the layout and add it to the dock
    widget = QtWidgets.QWidget()

    # Add the dock to the main window
    mw.addDockWidget(QtCore.Qt.DockWidgetArea(QtCore.Qt.DockWidgetArea.RightDockWidgetArea), dock)

# Register a hook to call the display_field_contents_on_home_screen function
# when the Anki home screen is displayed
addHook("profileLoaded", display_field_contents_on_home_screen)

Debug info:
Anki 2.1.66 (70506aeb) Python 3.9.15 Qt 6.5.0 PyQt 6.5.0
Platform: macOS-14.1.1-arm64-arm-64bit
Flags: frz=True ao=True sv=3
Add-ons, last update check: 2023-11-27 20:49:48
Add-ons possibly involved: <U+2068>931346754<U+2069>

Caught exception:
Traceback (most recent call last):
  File "aqt.progress", line 118, in handler
  File "aqt.main", line 217, in on_window_init
  File "aqt.main", line 316, in setupProfile
  File "aqt.main", line 495, in loadProfile
  File "_aqt.hooks", line 3983, in __call__
  File "anki.hooks", line 34, in runHook
  File "/Users/sai/Library/Application Support/Anki2/addons21/931346754/", line 28, in display_field_contents_on_home_screen
    dock = QtWidgets.QDockWidget()
NameError: name 'QtWidgets' is not defined