Tring to use after cancel after press a button in Tkinter but its dosent work
Question:
I am tring to use after and after cancel method in tkinter to show a text in canvas its normaly works but when a user press a button before the text writing in canvas in compelete it showing wrong information and scaping to show some data on canvas here is my code i dont get any error but its dont work well
def get_next_question(self):
global text_map, correct_answer, keep, press
press = True
if self.quizz.still_remaining_question():
self.canvas.config(bg="white")
question = self.quizz.next_question()
list_name = list(question)
text_map = list_name
text_map = list_name[2]
category = list_name[0]
difficulty = list_name[1]
correct_answer = list_name[4]
self.category_label.config(text=f"Category : {category.title()}")
self.difficulty_label.config(text=f"Difficulty : {difficulty.title()}")
self.score_label.config(text=f"Score : {self.quizz.score} / {self.quizz.question_number - 1}")
keep = self.write()
else:
self.canvas.itemconfig(self.question_text, text=f"You rich the end of the Quizz your final Score is:"
f"{self.quizz.score}/{self.quizz.question_number}")
self.true_button.config(state="disabled")
self.false_button.config(state="disabled")
def write(self):
if press:
self.canvas.itemconfig(self.question_text, text=self.text)
if len(self.text) != len(text_map):
self.text += text_map[self.count]
self.count += 1
self.window.after(100, self.write)
else:
self.count = 0
self.text = ""
return
else:
self.count = 0
self.text = ""
try:
self.window.after_cancel(self.write)
except ValueError:
pass
finally:
self.window.after(100, self.get_next_question)
return
def true_press(self):
global press
press = False
is_right = self.quizz.check_answer("True", correct_answer)
self.feed_back(is_right)
def false_press(self):
global press
press = False
is_right = self.quizz.check_answer("False", correct_answer)
self.feed_back(is_right)
def feed_back(self, is_right):
if is_right:
self.canvas.itemconfig(self.question_text, text="Correct")
else:
self.canvas.itemconfig(self.question_text, text="Wrong")
try:
self.window.after_cancel(self.write)
except ValueError:
pass
finally:
self.window.after(1000, self.get_next_question)
Answers:
here is my final code thank you @Bryan Oakley its work well and typing question letter by letter on canvas
from tkinter import *
from quiz_brain import QuizBrain
COLOR = "#375362"
text_map = []
correct_answer = ""
FONT = ("Zippy", 20)
keep = None
press = True
class QuizInterFace:
def __init__(self, quizz_brain: QuizBrain):
self.quizz = quizz_brain
self.text = ""
self.count = 0
self.keep = None
self.window = Tk()
self.window.title("Quiz App")
self.window.config(pady=50, padx=50, bg=COLOR)
self.category_label = Label(text="Category", bg=COLOR, fg="white", font=FONT)
self.score_label = Label(text="Score", bg=COLOR, fg="white", font=FONT)
self.canvas = Canvas(height=360, width=400)
self.question_text = self.canvas.create_text(180, 200, text="Some text", font=("arial", 20, "italic"),
fill=COLOR, width=270)
self.category_label.grid(column=0, row=1, columnspan=2)
self.score_label.grid(column=0, row=0, columnspan=2)
self.difficulty_label = Label(bg=COLOR, fg="white", font=FONT)
self.difficulty_label.grid(column=0, row=2, columnspan=2)
self.canvas.grid(column=0, row=3, columnspan=2, pady=50)
self.true_image = PhotoImage(file="true.png")
self.false_image = PhotoImage(file="false.png")
self.button = IntVar()
self.true_button = Button(image=self.true_image, highlightthickness=0, activebackground=COLOR,
command=self.true_press, textvariable=self.button)
self.false_button = Button(image=self.false_image, highlightthickness=0, activebackground=COLOR,
command=self.false_press, textvariable=self.button)
self.true_button.grid(column=0, row=4)
self.false_button.grid(column=1, row=4)
self.get_next_question()
self.window.mainloop()
def get_next_question(self):
global text_map, correct_answer, press
press = True
if self.quizz.still_remaining_question():
self.canvas.config(bg="white")
question = self.quizz.next_question()
list_name = list(question)
text_map = list_name
text_map = list_name[2]
category = list_name[0]
difficulty = list_name[1]
correct_answer = list_name[4]
self.category_label.config(text=f"Category : {category.title()}")
self.difficulty_label.config(text=f"Difficulty : {difficulty.title()}")
self.score_label.config(text=f"Score : {self.quizz.score} / {self.quizz.question_number - 1}")
self.write()
else:
self.canvas.itemconfig(self.question_text, text=f"You rich the end of the Quizz your final Score is:"
f"{self.quizz.score}/{self.quizz.question_number}")
self.true_button.config(state="disabled")
self.false_button.config(state="disabled")
def write(self):
if press:
self.canvas.itemconfig(self.question_text, text=self.text)
if len(self.text) != len(text_map):
self.text += text_map[self.count]
self.count += 1
self.keep = self.window.after(100, self.write)
else:
self.count = 0
self.text = ""
return
else:
self.count = 0
self.text = ""
self.window.after_cancel(self.keep)
self.window.after(100, self.get_next_question)
return
def true_press(self):
global press
press = False
self.count = 0
self.text = ""
is_right = self.quizz.check_answer("True", correct_answer)
self.feed_back(is_right)
def false_press(self):
global press
press = False
self.count = 0
self.text = ""
is_right = self.quizz.check_answer("False", correct_answer)
self.feed_back(is_right)
def feed_back(self, is_right):
if is_right:
self.window.after_cancel(self.keep)
self.canvas.itemconfig(self.question_text, text="Correct")
self.window.after(1000, self.get_next_question)
else:
self.window.after_cancel(self.keep)
self.canvas.itemconfig(self.question_text, text="Wrong")
self.window.after(1000, self.get_next_question)
I am tring to use after and after cancel method in tkinter to show a text in canvas its normaly works but when a user press a button before the text writing in canvas in compelete it showing wrong information and scaping to show some data on canvas here is my code i dont get any error but its dont work well
def get_next_question(self):
global text_map, correct_answer, keep, press
press = True
if self.quizz.still_remaining_question():
self.canvas.config(bg="white")
question = self.quizz.next_question()
list_name = list(question)
text_map = list_name
text_map = list_name[2]
category = list_name[0]
difficulty = list_name[1]
correct_answer = list_name[4]
self.category_label.config(text=f"Category : {category.title()}")
self.difficulty_label.config(text=f"Difficulty : {difficulty.title()}")
self.score_label.config(text=f"Score : {self.quizz.score} / {self.quizz.question_number - 1}")
keep = self.write()
else:
self.canvas.itemconfig(self.question_text, text=f"You rich the end of the Quizz your final Score is:"
f"{self.quizz.score}/{self.quizz.question_number}")
self.true_button.config(state="disabled")
self.false_button.config(state="disabled")
def write(self):
if press:
self.canvas.itemconfig(self.question_text, text=self.text)
if len(self.text) != len(text_map):
self.text += text_map[self.count]
self.count += 1
self.window.after(100, self.write)
else:
self.count = 0
self.text = ""
return
else:
self.count = 0
self.text = ""
try:
self.window.after_cancel(self.write)
except ValueError:
pass
finally:
self.window.after(100, self.get_next_question)
return
def true_press(self):
global press
press = False
is_right = self.quizz.check_answer("True", correct_answer)
self.feed_back(is_right)
def false_press(self):
global press
press = False
is_right = self.quizz.check_answer("False", correct_answer)
self.feed_back(is_right)
def feed_back(self, is_right):
if is_right:
self.canvas.itemconfig(self.question_text, text="Correct")
else:
self.canvas.itemconfig(self.question_text, text="Wrong")
try:
self.window.after_cancel(self.write)
except ValueError:
pass
finally:
self.window.after(1000, self.get_next_question)
here is my final code thank you @Bryan Oakley its work well and typing question letter by letter on canvas
from tkinter import *
from quiz_brain import QuizBrain
COLOR = "#375362"
text_map = []
correct_answer = ""
FONT = ("Zippy", 20)
keep = None
press = True
class QuizInterFace:
def __init__(self, quizz_brain: QuizBrain):
self.quizz = quizz_brain
self.text = ""
self.count = 0
self.keep = None
self.window = Tk()
self.window.title("Quiz App")
self.window.config(pady=50, padx=50, bg=COLOR)
self.category_label = Label(text="Category", bg=COLOR, fg="white", font=FONT)
self.score_label = Label(text="Score", bg=COLOR, fg="white", font=FONT)
self.canvas = Canvas(height=360, width=400)
self.question_text = self.canvas.create_text(180, 200, text="Some text", font=("arial", 20, "italic"),
fill=COLOR, width=270)
self.category_label.grid(column=0, row=1, columnspan=2)
self.score_label.grid(column=0, row=0, columnspan=2)
self.difficulty_label = Label(bg=COLOR, fg="white", font=FONT)
self.difficulty_label.grid(column=0, row=2, columnspan=2)
self.canvas.grid(column=0, row=3, columnspan=2, pady=50)
self.true_image = PhotoImage(file="true.png")
self.false_image = PhotoImage(file="false.png")
self.button = IntVar()
self.true_button = Button(image=self.true_image, highlightthickness=0, activebackground=COLOR,
command=self.true_press, textvariable=self.button)
self.false_button = Button(image=self.false_image, highlightthickness=0, activebackground=COLOR,
command=self.false_press, textvariable=self.button)
self.true_button.grid(column=0, row=4)
self.false_button.grid(column=1, row=4)
self.get_next_question()
self.window.mainloop()
def get_next_question(self):
global text_map, correct_answer, press
press = True
if self.quizz.still_remaining_question():
self.canvas.config(bg="white")
question = self.quizz.next_question()
list_name = list(question)
text_map = list_name
text_map = list_name[2]
category = list_name[0]
difficulty = list_name[1]
correct_answer = list_name[4]
self.category_label.config(text=f"Category : {category.title()}")
self.difficulty_label.config(text=f"Difficulty : {difficulty.title()}")
self.score_label.config(text=f"Score : {self.quizz.score} / {self.quizz.question_number - 1}")
self.write()
else:
self.canvas.itemconfig(self.question_text, text=f"You rich the end of the Quizz your final Score is:"
f"{self.quizz.score}/{self.quizz.question_number}")
self.true_button.config(state="disabled")
self.false_button.config(state="disabled")
def write(self):
if press:
self.canvas.itemconfig(self.question_text, text=self.text)
if len(self.text) != len(text_map):
self.text += text_map[self.count]
self.count += 1
self.keep = self.window.after(100, self.write)
else:
self.count = 0
self.text = ""
return
else:
self.count = 0
self.text = ""
self.window.after_cancel(self.keep)
self.window.after(100, self.get_next_question)
return
def true_press(self):
global press
press = False
self.count = 0
self.text = ""
is_right = self.quizz.check_answer("True", correct_answer)
self.feed_back(is_right)
def false_press(self):
global press
press = False
self.count = 0
self.text = ""
is_right = self.quizz.check_answer("False", correct_answer)
self.feed_back(is_right)
def feed_back(self, is_right):
if is_right:
self.window.after_cancel(self.keep)
self.canvas.itemconfig(self.question_text, text="Correct")
self.window.after(1000, self.get_next_question)
else:
self.window.after_cancel(self.keep)
self.canvas.itemconfig(self.question_text, text="Wrong")
self.window.after(1000, self.get_next_question)