Equal Button Errors on Calculator












-1














I am trying to learn how to code and am having issues with my simple calculator code. It works properly but it does not save any info after the "=" button is clicked. So it will do 2*2=6 but then 6*2=error. How can I code in a memory function?



Code:



operator=operator + str(numbers)
Text_Input.set(operator)

def btnClearDisplay():
global operator
operator=""
Text_Input.set("")

def btnEqualsInput():
global operator
sumup=str(eval(operator))
Text_Input.set(sumup)
operator=""**

cal = Tk()
cal. title("Calculator")
operator=""
Text_Input =StringVar()

textdisplay = Entry(cal,font=('arial', 20,'bold'), textvariable=Text_Input, bd=30, insertwidth=4,
bg="pink" , justify='right'). grid(columnspan=4)

btn7=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="7",bg="lavender",command=lambda:btnClick(7)).grid(row=1,column=0)

btn8=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="8", bg="lavender", command=lambda:btnClick(8)).grid(row=1,column=1)

btn9=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="9", bg="lavender", command=lambda:btnClick(9)).grid(row=1,column=2)

Addition=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="+", bg="lavender",command=lambda:btnClick("+")).grid(row=1,column=3)
#=============================================================
btn4=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="4", bg="lavender",command=lambda:btnClick(4)).grid(row=2,column=0)

btn5=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="5", bg="lavender",command=lambda:btnClick(5)).grid(row=2,column=1)

btn6=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="6", bg="lavender",command=lambda:btnClick(6)).grid(row=2,column=2)

Subtraction=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="-", bg="lavender",command=lambda:btnClick("-")).grid(row=2,column=3)

#=============================================================
btn1=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="1", bg="lavender",command=lambda:btnClick(1)).grid(row=3,column=0)

btn2=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="2", bg="lavender",command=lambda:btnClick(2)).grid(row=3,column=1)

btn3=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="3", bg="lavender",command=lambda:btnClick(3)).grid(row=3,column=2)

Multiply=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="*", bg="lavender",command=lambda:btnClick("*")).grid(row=3,column=3)

#=============================================================
btn0=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="0", bg="lavender",command=lambda:btnClick(0)).grid(row=4,column=0)

btnClear=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="C", bg="lavender",command= btnClearDisplay).grid(row=4,column=1)

btnEquals=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="=", bg="lavender", command= btnEqualsInput).grid(row=4,column=2)

Division=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="/", bg="lavender",command=lambda:btnClick("/")).grid(row=4,column=3)


cal.mainloop()









share|improve this question







New contributor




Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Hey, welcome to Code Review! This question does not match what this site is about. Code Review is about improving existing, working code. Code Review is not the site to ask for help in fixing or changing what your code does. Once the code does what you want, we would love to help you do the same thing in a cleaner way! Please see our help center for more information.
    – Graipher
    33 mins ago
















-1














I am trying to learn how to code and am having issues with my simple calculator code. It works properly but it does not save any info after the "=" button is clicked. So it will do 2*2=6 but then 6*2=error. How can I code in a memory function?



Code:



operator=operator + str(numbers)
Text_Input.set(operator)

def btnClearDisplay():
global operator
operator=""
Text_Input.set("")

def btnEqualsInput():
global operator
sumup=str(eval(operator))
Text_Input.set(sumup)
operator=""**

cal = Tk()
cal. title("Calculator")
operator=""
Text_Input =StringVar()

textdisplay = Entry(cal,font=('arial', 20,'bold'), textvariable=Text_Input, bd=30, insertwidth=4,
bg="pink" , justify='right'). grid(columnspan=4)

btn7=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="7",bg="lavender",command=lambda:btnClick(7)).grid(row=1,column=0)

btn8=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="8", bg="lavender", command=lambda:btnClick(8)).grid(row=1,column=1)

btn9=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="9", bg="lavender", command=lambda:btnClick(9)).grid(row=1,column=2)

Addition=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="+", bg="lavender",command=lambda:btnClick("+")).grid(row=1,column=3)
#=============================================================
btn4=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="4", bg="lavender",command=lambda:btnClick(4)).grid(row=2,column=0)

btn5=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="5", bg="lavender",command=lambda:btnClick(5)).grid(row=2,column=1)

btn6=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="6", bg="lavender",command=lambda:btnClick(6)).grid(row=2,column=2)

Subtraction=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="-", bg="lavender",command=lambda:btnClick("-")).grid(row=2,column=3)

#=============================================================
btn1=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="1", bg="lavender",command=lambda:btnClick(1)).grid(row=3,column=0)

btn2=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="2", bg="lavender",command=lambda:btnClick(2)).grid(row=3,column=1)

btn3=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="3", bg="lavender",command=lambda:btnClick(3)).grid(row=3,column=2)

Multiply=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="*", bg="lavender",command=lambda:btnClick("*")).grid(row=3,column=3)

#=============================================================
btn0=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="0", bg="lavender",command=lambda:btnClick(0)).grid(row=4,column=0)

btnClear=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="C", bg="lavender",command= btnClearDisplay).grid(row=4,column=1)

btnEquals=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="=", bg="lavender", command= btnEqualsInput).grid(row=4,column=2)

Division=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="/", bg="lavender",command=lambda:btnClick("/")).grid(row=4,column=3)


cal.mainloop()









share|improve this question







New contributor




Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Hey, welcome to Code Review! This question does not match what this site is about. Code Review is about improving existing, working code. Code Review is not the site to ask for help in fixing or changing what your code does. Once the code does what you want, we would love to help you do the same thing in a cleaner way! Please see our help center for more information.
    – Graipher
    33 mins ago














-1












-1








-1







I am trying to learn how to code and am having issues with my simple calculator code. It works properly but it does not save any info after the "=" button is clicked. So it will do 2*2=6 but then 6*2=error. How can I code in a memory function?



Code:



operator=operator + str(numbers)
Text_Input.set(operator)

def btnClearDisplay():
global operator
operator=""
Text_Input.set("")

def btnEqualsInput():
global operator
sumup=str(eval(operator))
Text_Input.set(sumup)
operator=""**

cal = Tk()
cal. title("Calculator")
operator=""
Text_Input =StringVar()

textdisplay = Entry(cal,font=('arial', 20,'bold'), textvariable=Text_Input, bd=30, insertwidth=4,
bg="pink" , justify='right'). grid(columnspan=4)

btn7=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="7",bg="lavender",command=lambda:btnClick(7)).grid(row=1,column=0)

btn8=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="8", bg="lavender", command=lambda:btnClick(8)).grid(row=1,column=1)

btn9=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="9", bg="lavender", command=lambda:btnClick(9)).grid(row=1,column=2)

Addition=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="+", bg="lavender",command=lambda:btnClick("+")).grid(row=1,column=3)
#=============================================================
btn4=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="4", bg="lavender",command=lambda:btnClick(4)).grid(row=2,column=0)

btn5=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="5", bg="lavender",command=lambda:btnClick(5)).grid(row=2,column=1)

btn6=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="6", bg="lavender",command=lambda:btnClick(6)).grid(row=2,column=2)

Subtraction=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="-", bg="lavender",command=lambda:btnClick("-")).grid(row=2,column=3)

#=============================================================
btn1=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="1", bg="lavender",command=lambda:btnClick(1)).grid(row=3,column=0)

btn2=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="2", bg="lavender",command=lambda:btnClick(2)).grid(row=3,column=1)

btn3=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="3", bg="lavender",command=lambda:btnClick(3)).grid(row=3,column=2)

Multiply=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="*", bg="lavender",command=lambda:btnClick("*")).grid(row=3,column=3)

#=============================================================
btn0=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="0", bg="lavender",command=lambda:btnClick(0)).grid(row=4,column=0)

btnClear=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="C", bg="lavender",command= btnClearDisplay).grid(row=4,column=1)

btnEquals=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="=", bg="lavender", command= btnEqualsInput).grid(row=4,column=2)

Division=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="/", bg="lavender",command=lambda:btnClick("/")).grid(row=4,column=3)


cal.mainloop()









share|improve this question







New contributor




Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I am trying to learn how to code and am having issues with my simple calculator code. It works properly but it does not save any info after the "=" button is clicked. So it will do 2*2=6 but then 6*2=error. How can I code in a memory function?



Code:



operator=operator + str(numbers)
Text_Input.set(operator)

def btnClearDisplay():
global operator
operator=""
Text_Input.set("")

def btnEqualsInput():
global operator
sumup=str(eval(operator))
Text_Input.set(sumup)
operator=""**

cal = Tk()
cal. title("Calculator")
operator=""
Text_Input =StringVar()

textdisplay = Entry(cal,font=('arial', 20,'bold'), textvariable=Text_Input, bd=30, insertwidth=4,
bg="pink" , justify='right'). grid(columnspan=4)

btn7=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="7",bg="lavender",command=lambda:btnClick(7)).grid(row=1,column=0)

btn8=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="8", bg="lavender", command=lambda:btnClick(8)).grid(row=1,column=1)

btn9=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="9", bg="lavender", command=lambda:btnClick(9)).grid(row=1,column=2)

Addition=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="+", bg="lavender",command=lambda:btnClick("+")).grid(row=1,column=3)
#=============================================================
btn4=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="4", bg="lavender",command=lambda:btnClick(4)).grid(row=2,column=0)

btn5=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="5", bg="lavender",command=lambda:btnClick(5)).grid(row=2,column=1)

btn6=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="6", bg="lavender",command=lambda:btnClick(6)).grid(row=2,column=2)

Subtraction=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="-", bg="lavender",command=lambda:btnClick("-")).grid(row=2,column=3)

#=============================================================
btn1=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="1", bg="lavender",command=lambda:btnClick(1)).grid(row=3,column=0)

btn2=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="2", bg="lavender",command=lambda:btnClick(2)).grid(row=3,column=1)

btn3=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="3", bg="lavender",command=lambda:btnClick(3)).grid(row=3,column=2)

Multiply=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="*", bg="lavender",command=lambda:btnClick("*")).grid(row=3,column=3)

#=============================================================
btn0=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="0", bg="lavender",command=lambda:btnClick(0)).grid(row=4,column=0)

btnClear=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="C", bg="lavender",command= btnClearDisplay).grid(row=4,column=1)

btnEquals=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="=", bg="lavender", command= btnEqualsInput).grid(row=4,column=2)

Division=Button(cal,padx=16,pady=16,bd=8, fg="black" ,font=('arial', 20,'bold'),
text="/", bg="lavender",command=lambda:btnClick("/")).grid(row=4,column=3)


cal.mainloop()






python calculator






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Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






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asked 38 mins ago









Karina Hernandez

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New contributor




Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor





Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Karina Hernandez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • Hey, welcome to Code Review! This question does not match what this site is about. Code Review is about improving existing, working code. Code Review is not the site to ask for help in fixing or changing what your code does. Once the code does what you want, we would love to help you do the same thing in a cleaner way! Please see our help center for more information.
    – Graipher
    33 mins ago


















  • Hey, welcome to Code Review! This question does not match what this site is about. Code Review is about improving existing, working code. Code Review is not the site to ask for help in fixing or changing what your code does. Once the code does what you want, we would love to help you do the same thing in a cleaner way! Please see our help center for more information.
    – Graipher
    33 mins ago
















Hey, welcome to Code Review! This question does not match what this site is about. Code Review is about improving existing, working code. Code Review is not the site to ask for help in fixing or changing what your code does. Once the code does what you want, we would love to help you do the same thing in a cleaner way! Please see our help center for more information.
– Graipher
33 mins ago




Hey, welcome to Code Review! This question does not match what this site is about. Code Review is about improving existing, working code. Code Review is not the site to ask for help in fixing or changing what your code does. Once the code does what you want, we would love to help you do the same thing in a cleaner way! Please see our help center for more information.
– Graipher
33 mins ago















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