I do not understand how to clear this label within my code.
import tkinter as tk import time import threading import random class TypeSpeedGUI: def __init__(self): self.root =tk.Tk() self.root.title("Type Speed App") # Title self.root.geometry("800x600") self.levelsel = 0 self.texty = open("start.txt", "r").read().split("\n") self.frame = tk.Frame(self.root) self.sample_label = tk.Label(self.frame, text=random.choice(self.texty), font =("Helvetica", 18)) # Text self.sample_label.grid(row=1, column = 3, columnspan=2, padx=5, pady=5) self.input_entry = tk.Entry(self.frame, width=40, font=("Helvetica", 24)) self.input_entry.grid(row=2, column=3, columnspan=2, padx=5, pady=10) self.input_entry.bind("<KeyPress>", self.start) self.speed_label = tk.Label(self.frame, text ="Speed: \n0.00 CPS\n0.00 CPM\n0.00 WPM\n0.00 WPS", font=("Helvetica", 18)) self.speed_label.grid(row=4, column=3, columnspan=2, padx=5, pady=10) self.reset_button = tk.Button(self.frame, text="Reset", command=self.reset) self.reset_button.grid(row=5, column=3, columnspan=2, padx=5, pady=10) self.level1_button = tk.Button(self.frame, text="Level 1", command=self.level1) self.level1_button.grid(row=0, column=2, columnspan=2, padx=5, pady=10) self.level2_button = tk.Button(self.frame, text="Level 2", command=self.level2) self.level2_button.grid(row=0, column=3, columnspan=2, padx=5, pady=10) self.level3_button = tk.Button(self.frame, text="Level 3", command=self.level3) self.level3_button.grid(row=0, column=4, columnspan=2, padx=5, pady=10) self.frame.pack(expand=True) self.counter = 0 self.started = False self.root.mainloop() def start(self, event): if not self.started: if not event.keycode in [16, 17, 18]: self.started = True t = threading.Thread(target=self.time_thread) t.start() if not self.sample_label.cget("text").startswith(self.input_entry.get()): self.input_entry.config(fg="red") else: self.input_entry.config(fg="black") if self.input_entry.get() == self.sample_label.cget("text")[:-1]: self.started = False self.input_entry.config(fg="green") def time_thread(self): while self.started: time.sleep(0.1) self.counter += 0.1 cps = len(self.input_entry.get()) / self.counter cpm = cps * 60 wps = len(self.input_entry.get().split(" ")) / self.counter wpm = wps * 60 self.speed_label.config(text=f"Speed: \n{cps:.2f} CPS\n{cpm:.2f} CPM\n{wps:.2f} WPS\n{wpm:.2f} WPM") def level1(self): self.levelsel = 1 print("reached level def") self.test_name(self.levelsel) def level2(self): self.levelsel = 2 self.test_name(self.levelsel) def level3(self): self.levelsel = 3 self.test_name(self.levelsel) def reset(self): self.clear(self) self.texty = open("start.txt", "r").read().split("\n") self.sample_label = tk.Label(self.frame, text=random.choice(self.texty), font =("Helvetica", 18)) self.started = False self.counter = 0 self.speed_label.config(text="Speed: \n0.00 CPS\n0.00 CPM\n0.00 WPM\n0.00 WPS") self.sample_label.config(text=random.choice(self.texty)) self.input_entry.delete(0, tk.END) def test_name(self, levelsel): print("reached test name") if self.levelsel == 1: texty = open("texts1.txt", "r").read().split("\n") self.sample_label = tk.Label(self.frame, text=random.choice(texty), font =("Helvetica", 18)) # Text self.sample_label.grid(row=1, column = 3, columnspan=5, padx=5, pady=5) elif self.levelsel == 2: texty = open("texts2.txt", "r").read().split("\n") self.sample_label = tk.Label(self.frame, text=random.choice(texty), font =("Helvetica", 18)) # Text self.sample_label.grid(row=1, column = 3, columnspan=5, padx=5, pady=5) elif self.levelsel == 3: texty = open("texts3.txt", "r").read().split("\n") self.sample_label = tk.Label(self.frame, text=random.choice(texty), font =("Helvetica", 18)) # Text self.sample_label.grid(row=1, column = 3, columnspan=5, padx=5, pady=5) else: texty = open("start.txt", "r").read().split("\n") self.sample_label = tk.Label(self.frame, text=random.choice(texty), font =("Helvetica", 18)) # Text self.sample_label.grid(row=1, column = 3, columnspan=5, padx=5, pady=5) def clear(self): self.sample_label.after(1000, self.sample_label.destroy()) TypeSpeedGUI()
The function clear(self) is there to reset the label; however, when I try to call it up at my reset button, I get an error, and a photo will be attached below.
I have tried other methods such as setting the text of the label to ” ” for the clear however nothing is working and that error message has started to appear.
The error is occurring because you are attempting to destroy the label inside the clear method, and then you try to use the same label in subsequent calls. Once a widget is destroyed, you cannot use it again.
clear
Instead of destroying the label and creating a new one, you can update the text of the existing label. Modify your clear method like this:
def clear(self): self.sample_label.config(text="") self.input_entry.delete(0, tk.END)
This will clear the text of the label without destroying and recreating it. Also, I added self.input_entry.delete(0, tk.END) to clear the input entry field when the reset button is pressed.
self.input_entry.delete(0, tk.END)
Now, in your reset method, you don’t need to recreate the label; you can keep using the existing one:
reset
def reset(self): self.clear() self.texty = open("start.txt", "r").read().split("\n") self.started = False self.counter = 0 self.speed_label.config(text="Speed: \n0.00 CPS\n0.00 CPM\n0.00 WPM\n0.00 WPS") self.sample_label.config(text=random.choice(self.texty)) self.input_entry.delete(0, tk.END)
This should resolve the issue you are facing with destroying and recreating the label.
