Code for How to Make a Python Code Editor using Tkinter in Python Tutorial

View on Github

python_code_editor.py

from tkinter import * import ctypes import re import os # Increas Dots Per inch so it looks sharper ctypes.windll.shcore.SetProcessDpiAwareness(True) # Setup Tkinter root = Tk() root.geometry('500x500') # Execute the Programm def execute(event=None): # Write the Content to the Temporary File with open('run.py', 'w', encoding='utf-8') as f: f.write(editArea.get('1.0', END)) # Start the File in a new CMD Window os.system('start cmd /K "python run.py"') # Register Changes made to the Editor Content def changes(event=None): global previousText # If actually no changes have been made stop / return the function if editArea.get('1.0', END) == previousText: return # Remove all tags so they can be redrawn for tag in editArea.tag_names(): editArea.tag_remove(tag, "1.0", "end") # Add tags where the search_re function found the pattern i = 0 for pattern, color in repl: for start, end in search_re(pattern, editArea.get('1.0', END)): editArea.tag_add(f'{i}', start, end) editArea.tag_config(f'{i}', foreground=color) i+=1 previousText = editArea.get('1.0', END) def search_re(pattern, text, groupid=0): matches = [] text = text.splitlines() for i, line in enumerate(text): for match in re.finditer(pattern, line): matches.append( (f"{i + 1}.{match.start()}", f"{i + 1}.{match.end()}") ) return matches def rgb(rgb): return "#%02x%02x%02x" % rgb previousText = '' # Define colors for the variouse types of tokens normal = rgb((234, 234, 234)) keywords = rgb((234, 95, 95)) comments = rgb((95, 234, 165)) string = rgb((234, 162, 95)) function = rgb((95, 211, 234)) background = rgb((42, 42, 42)) font = 'Consolas 15' # Define a list of Regex Pattern that should be colored in a certain way repl = [ ['(^| )(False|None|True|and|as|assert|async|await|break|class|continue|def|del|elif|else|except|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|raise|return|try|while|with|yield)($| )', keywords], ['".*?"', string], ['\'.*?\'', string], ['#.*?$', comments], ] # Make the Text Widget # Add a hefty border width so we can achieve a little bit of padding editArea = Text( root, background=background, foreground=normal, insertbackground=normal, relief=FLAT, borderwidth=30, font=font ) # Place the Edit Area with the pack method editArea.pack( fill=BOTH, expand=1 ) # Insert some Standard Text into the Edit Area editArea.insert('1.0', """from argparse import ArgumentParser from random import shuffle, choice import string # Setting up the Argument Parser parser = ArgumentParser( prog='Password Generator.', description='Generate any number of passwords with this tool.' ) """) # Bind the KeyRelase to the Changes Function editArea.bind('<KeyRelease>', changes) # Bind Control + R to the exec function root.bind('<Control-r>', execute) changes() root.mainloop()