Open up your text editor project from the last chapter and create a new file in its root folder called highlighter.py. We can now write our Highlighter class in here:
import tkinter as tkclass Highlighter: def __init__(self, text_widget): self.text_widget = text_widget self.numbers_color = "blue" self.keywords_color = "orange" self.keywords = ["True", "False", "def", "for", "while", "import", "if", "elif", "else"] self.disallowed_previous_chars = ["_", "-", "."] self.tag_configure("keyword", foreground=self.keywords_color) self.tag_configure("number", foreground=self.numbers_color) self.text_widget.bind('<KeyRelease>', self.on_key_release)
Our Highlighter class will need to keep a reference to the Text widget which ...
