Hi,
A small group of students and I are making steady progress learning Python.
Thanks for the people here who have helped us!
I have an problem with my simple 'Times Tables Program'.
The 'Make Problem' function works fine...it can generate a random problem
and place it in a variable called "answer"...which I've made global because
it needs to be used in the 'Check answer' function.
The trouble is the program is unable to tell you that you are right....even
when you type in the correct answer.
Here is the full code:
from tkinter import *
import random
answer = "global"
def makeproblem():
# deletes anything in text box from location 00 to the end
txt.delete(0.0, 'end')
sentence = "Your first problem is "
number1 = random.randint(2,12)
number2 = random.randint(2,12)
answer = number1 * number2
txt.insert(0.0, sentence)
txt.insert(2.2, number1)
txt.insert(3.3, " x ")
txt.insert(4.4, number2)
def checkanswer():
# deletes anything in text box from location 00 to the end
txt.delete(0.0, 'end')
# checks for what is written in answerbox
response = int(answerbox.get())
if response == answer:
result = "Great Job!"
score = int(score + 1)
else :
result = "Sorry...you were wrong"
txt.insert(0.0, result)
txt.insert(1,1, "Score is")
txt.insert(2,2, score)
root = Tk()
root.geometry("640x640+0+0")
root.title("Times Tables")
timeslabel = Label(root, text="Times Tables Practice", fg="white", bg="blue",
font=("arial", 36, "bold"))
timeslabel.grid(columnspan=12, sticky='ew')
instruction = Label(root, text="Please click on the button to generate a
problem", fg="blue", bg="white", font=("arial", 16, "bold"))
instruction.grid(row=2, columnspan=20)
blankline = Label(root, text = "", bg = "white")
blankline.grid(row=12, sticky='ew')
# Makes an entry box with the variable of 'answerbox'
answerbox = Entry(root, bg="aqua", font=("arial", 24, "bold"))
answerbox.grid(row=15, columnspan=2, sticky=EW)
# Makes a button that generate the Times Tables problem
btn = Button(root, text="GENERATE PROBLEM", bg="blue", fg="white", command=
makeproblem)
btn.grid(row=11, columnspan=2, sticky=EW)
# Makes a button that checks the answer
btn = Button(root, text="CHECK ANSWER", bg="darkblue", fg="white", command=
checkanswer)
btn.grid(row=13, columnspan=2, sticky=EW)
#HOW CAN I CENTRE THE TEXT???
txt = Text(root, width=35, height=10, wrap=WORD, font=("arial", 24, "bold"))
txt.grid(row=12, columnspan=2, sticky=EW )
root.mainloop()
*Question 1:*
*Why cant the program check if 'answer' variable is correct?*
lib\tkinter\__init__.py", line 3269, in insert
self.tk.call((self._w, 'insert', index, chars) + args)
_tkinter.TclError: bad text index "1"
*Question 2:*
Is there a way to centre text within the text frame? I can change the font
and size...but don't know how to centre it?
txt = Text(root, width=35, height=10, wrap=WORD, font=("arial", 24, "bold"))
txt.grid(row=12, columnspan=2, sticky=EW )
*Question 3:*
My 'Score' check idea..may not actually work...haven't been able to get
that far yet though!
Thanks so much for any clues.
- Matthew Polack
Matthew Polack | Teacher
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e. matthew.pol...@htlc.vic.edu.au
w. www.htlc.vic.edu.au
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