A simple calculator made with python

from kivy.uix.textinput import TextInput
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.app import App
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.popup import Popup

#A simple calculator made by Collins Anele.
Email:[email protected]

class Layout(FloatLayout):
	def __init__(self, **kwargs):
		super().__init__(**kwargs)
		self.popup = Popup(title='Error', content=Label(text='Error \nNa wa for you'), size_hint=(None, None), size=(400,400),
		pos_hint={'top':0.74, 'center_x':0.50})
		self.txtin_display = TextInput(size_hint=(None, None), pos_hint={'top':1, 'center_x':0.50}, size=(600, 250), text='')
		self.btn1 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.70, 'x':0.1}, text='1', font_size=50, on_press=self.b1)
		self.btn2 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.70, 'x':0.40}, text='2', font_size=50, on_press=self.b2)
		self.btn3 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.70, 'x':0.71}, text='3', font_size=50, on_press=self.b3)
		self.btn4 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.54, 'x':0.1}, text='4', font_size=50, on_press=self.b4)
		self.btn5 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.54, 'x':0.40}, text='5', font_size=50, on_press=self.b5)
		self.btn6 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.54, 'x':0.71}, text='6', font_size=50, on_press=self.b6)
		self.btn7 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.38, 'x':0.10}, text='7', font_size=50, on_press=self.b7)
		self.btn8 = Button(size_hint=(None,None),size=(120,120), pos_hint={'top':0.38, 'x':0.40}, text='8', font_size=50, on_press=self.b8)
		self.btn9 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.38, 'x':0.71}, text='9', font_size=50, on_press=self.b9)
		self.btn0 = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.22, 'x':0.1}, text='0', font_size=50, on_press=self.b0)
		self.btn_mul = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.22, 'x':0.40}, text='*', font_size=50, on_press=self.b_mul)
		self.btn_eq = Button(size_hint=(None,None), size=(120,120), pos_hint={'top':0.22, 'x':0.71}, text='=', font_size=50, on_press=self.b_eval)
		self.btn_plus = Button(size_hint=(None,None), size=(120,110), pos_hint={'top':0.08, 'x':0.1}, text='+', font_size=50, on_press=self.b_plus)
		self.btn_minus = Button(size_hint=(None,None), size=(120,110), pos_hint={'top':0.08, 'x':0.40}, text='-', font_size=50, on_press=self.b_minus)
		self.btn_divide = Button(size_hint=(None,None), size=(120,110), pos_hint={'top':0.08, 'x':0.71}, text='/', font_size=50, on_press=self.b_divide)
		self.btn_clear = Button(text='Clear', size_hint=(None,None), size=(120,60),
		pos_hint={'top':0.77, 'x':0.1}, on_press=self.b_clear)
		self.btn_dot1 = Button(text='.', size_hint=(None,None), size=(120,60),
		pos_hint={'top':0.77, 'x':0.4}, on_press=self.b_dot1)
		self.btn_del = Button(text='del', size_hint=(None,None), size=(120,60),
		pos_hint={'top':0.77, 'x':0.71}, on_press= self.b_del)










		self.add_widget(self.txtin_display)
		self.add_widget(self.btn_clear)
		self.add_widget(self.btn_del)
		self.add_widget(self.btn_dot1)
		self.add_widget(self.btn1)
		self.add_widget(self.btn2)
		self.add_widget(self.btn3)
		self.add_widget(self.btn4)
		self.add_widget(self.btn5)
		self.add_widget(self.btn6)
		self.add_widget(self.btn7)
		self.add_widget(self.btn8)
		self.add_widget(self.btn9)
		self.add_widget(self.btn0)
		self.add_widget(self.btn_mul)
		self.add_widget(self.btn_eq)
		self.add_widget(self.btn_plus)
		self.add_widget(self.btn_minus)
		self.add_widget(self.btn_divide)

	def b1(self, *args):
		self.txtin_display.text  += self.btn1.text

	def b2(self, *args):
		self.txtin_display.text += self.btn2.text

	def b3(self, *args):
		self.txtin_display.text += self.btn3.text

	def b4(self, *args):
		self.txtin_display.text += self.btn4.text

	def b5(self, *args):
		self.txtin_display.text += self.btn5.text

	def b6(self, *args):
		self.txtin_display.text += self.btn6.text

	def b7(self, *args):
		self.txtin_display.text += self.btn7.text

	def b8(self, *args):
		self.txtin_display.text += self.btn8.text

	def b9(self, *args):
		self.txtin_display.text += self.btn9.text

	def b0(self, *args):
		self.txtin_display.text += self.btn0.text

	def b_mul(self, *args):
		self.txtin_display.text += self.btn_mul.text

	def b_plus(self, *args):
		self.txtin_display.text += self.btn_plus.text

	def b_minus(self, *args):
		self.txtin_display.text += self.btn_minus.text

	def b_divide(self, *args):
		self.txtin_display.text += self.btn_divide.text

	def b_del(self, *args):
		try:
			a = self.txtin_display.text
			a = list(a)
			a.pop(-1)
			a = ''.join(a)
		except:
			self.popup.open()
		else:
			self.txtin_display.text = a



	def b_eval(self, *args):
		try:
			ans = eval(self.txtin_display.text)
			ans = str(ans)
		except:
			self.popup.open()
		else:
			self.txtin_display.text = ans

	def b_clear(self, *args):
		self.txtin_display.text = ''

	def b_dot1(self, *args):
		self.txtin_display.text += self.btn_dot1.text








class Main(App):
	def build(self, *args):
		return Layout()




app = Main()
app.run()