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#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()

#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()

#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()

#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()
deleted 214 characters in body
Source Link
Riv
  • 205
  • 2
  • 5
#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()

#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()

#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()

#-*-coding: utf-8-*-
from Tkinter import *
import math
class calc:
 def getandreplace(self):
 """replace x with * and ÷ with /"""
 
 self.expression = self.e.get()
 self.newtext=self.expression.replace(self.newdiv,'/')
 self.newtext=self.newtext.replace('x','*')
 def equals(self):
 """when the equal button is pressed"""
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.e.delete(0,END)
 self.e.insert(0,self.value)
 
 def squareroot(self):
 """squareroot method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqrtval=math.sqrt(self.value)
 self.e.delete(0,END)
 self.e.insert(0,self.sqrtval)
 def square(self):
 """square method"""
 
 self.getandreplace()
 try: 
 self.value= eval(self.newtext) #evaluate the expression using the eval function
 except SyntaxError or NameErrror:
 self.e.delete(0,END)
 self.e.insert(0,'Invalid Input!')
 else:
 self.sqval=math.pow(self.value,2)
 self.e.delete(0,END)
 self.e.insert(0,self.sqval)
 
 def clearall(self): 
 """when clear button is pressed,clears the text input area"""
 self.e.delete(0,END)
 
 def clear1(self):
 self.txt=self.e.get()[:-1]
 self.e.delete(0,END)
 self.e.insert(0,self.txt)
 def action(self,argi): 
 """pressed button's value is inserted into the end of the text area"""
 self.e.insert(END,argi)
 
 def __init__(self,master):
 """Constructor method"""
 master.title('Calulator') 
 master.geometry()
 self.e = Entry(master)
 self.e.grid(row=0,column=0,columnspan=6,pady=3)
 self.e.focus_set() #Sets focus on the input text area
 
 self.div='÷'
 self.newdiv=self.div.decode('utf-8')
 #Generating Buttons
 Button(master,text="=",width=10,command=lambda:self.equals()).grid(row=4, column=4,columnspan=2)
 Button(master,text='AC',width=3,command=lambda:self.clearall()).grid(row=1, column=4)
 Button(master,text='C',width=3,command=lambda:self.clear1()).grid(row=1, column=5)
 Button(master,text="+",width=3,command=lambda:self.action('+')).grid(row=4, column=3)
 Button(master,text="x",width=3,command=lambda:self.action('x')).grid(row=2, column=3)
 Button(master,text="-",width=3,command=lambda:self.action('-')).grid(row=3, column=3)
 Button(master,text="÷",width=3,command=lambda:self.action(self.newdiv)).grid(row=1, column=3) 
 Button(master,text="%",width=3,command=lambda:self.action('%')).grid(row=4, column=2)
 Button(master,text="7",width=3,command=lambda:self.action('7')).grid(row=1, column=0)
 Button(master,text="8",width=3,command=lambda:self.action(8)).grid(row=1, column=1)
 Button(master,text="9",width=3,command=lambda:self.action(9)).grid(row=1, column=2)
 Button(master,text="4",width=3,command=lambda:self.action(4)).grid(row=2, column=0)
 Button(master,text="5",width=3,command=lambda:self.action(5)).grid(row=2, column=1)
 Button(master,text="6",width=3,command=lambda:self.action(6)).grid(row=2, column=2)
 Button(master,text="1",width=3,command=lambda:self.action(1)).grid(row=3, column=0)
 Button(master,text="2",width=3,command=lambda:self.action(2)).grid(row=3, column=1)
 Button(master,text="3",width=3,command=lambda:self.action(3)).grid(row=3, column=2)
 Button(master,text="0",width=3,command=lambda:self.action(0)).grid(row=4, column=0)
 Button(master,text=".",width=3,command=lambda:self.action('.')).grid(row=4, column=1)
 Button(master,text="(",width=3,command=lambda:self.action('(')).grid(row=2, column=4)
 Button(master,text=")",width=3,command=lambda:self.action(')')).grid(row=2, column=5)
 Button(master,text="√",width=3,command=lambda:self.squareroot()).grid(row=3, column=4)
 Button(master,text="x2",width=3,command=lambda:self.square()).grid(row=3, column=5)
#Main
root = Tk()
obj=calc(root) #object instantiated
root.mainloop()
quoted original code
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lang-py

AltStyle によって変換されたページ (->オリジナル) /