[Python] ModuleNotFoundError: No module named 'ttkbootstrap'

When trying to import ttkbootstrap and build the python, I just get the error:

ModuleNotFoundError: No module named 'ttkbootstrap'


import tkinter as tk
from tkinter import ttk
import ttkbootstrap as ttk



Can't figure out what's going on. Help would be appreciated with a brief explanation, need to learn for future.

EDIT: FIXED

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