I need help with making my calculator

[MRAB]

On 2017-05-20 02:42, garsink at gmail.com wrote:
> m using Python 3.4.2
> This is my code:
> 
> 
> from tkinter import*
> 
> def iCalc(source, side):
>      storeObj= Frame(source, borderwidth= 1, bd= 4, bg="powder blue")
>      storeObj.pack(side=side, expand=YES, fill=BOTH)
>      return storeObj
> 
> def button (source, side, text, command=None):
>      storeObj= Button(source, text=text, command=command)
>      storeObj.pack(side=side, expand=YES, fill=BOTH)
>      return storeObj
> 
> class app(Frame):
>      def __init__(self):
>          Frame.__init__(self)
>          self.option_add('*Front', 'arial 20 bold')
>          self.pack(expand=YES, fill=BOTH)
>          self.master.title('Calculator')
> 
>          display= StringVar()
>          Entry(self, relief=RIDGE,
>                textvariable=display, justify='right', bd=30, bg="powder blue").pack(side=TOP, expand=YES,
>                                                                                     fill=BOTH)
>          for clearBut in(["CE"], ["C"]):
>              erase = iCalc(self, TOP)
>              for ichar in clearBut:
>                  button(erase, LEFT, ichar,
>                         lambda storeObj=display, q=ichar: storeObj.set(''))
> 
>          for NumBut in ("789/", "456*", "123-", "0.+"):
>              FunctionNum = iCalc(self, TOP)
>              for iEquals in NumBut:
>                  button(FunctionNum, LEFT, iEquals,
>                         lambda storeObj=display, q=iEquals: storeObj.set(storeObj.get() + q))
> 
>          EqualsButton=iCalc(self, TOP)
>          for iEquals in "=":
>              if iEquals == '=':
>                  btniEquals= button(EqualsButton, LEFT, iEquals)
>                  btniEquals.bind('<ButtonRelease-1>',
>                                  lambda e, s=self, storeObj=display: s.calc(storeObj), '+')
>              else:
>                  btniEquals= buton(EqualsButton, LEFT, iEquals,
>                                    lambda storeObj=display, s=' %s '%Equals: storeObj.set(storeObj.get()+s))
>                                  
>        
> 
> def calc(self, display):
>      try:
>          display.set(eval(display.get()))
>      except:
>          display.set("Type an actual equation please!")
> 
> 
> 
> if __name__ == '__main__':
>      app().mainloop()
> 
You haven't said what the problem is, but it's because the 'calc' method 
isn't indented enough. You've indented the '__init__' method correctly, 
but not the 'calc' method.