-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcalculator.py
123 lines (95 loc) · 3.6 KB
/
calculator.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
from tkinter import *
history = []
isReset = False
haveNewEntry = False
root = Tk()
root.title("Calculator")
e = Entry(root, width=35, borderwidth=5)
e.grid(row=0, column=0, columnspan=3, padx=10, pady=10)
def button_click(number):
global isReset
global haveNewEntry
haveNewEntry = True
if isReset:
e.delete(0, END)
isReset = False
current = e.get()
e.delete(0, END)
e.insert(0, str(current) + str(number))
def button_clear():
e.delete(0, END)
def button_operations(operant):
global isReset
global haveNewEntry
if isReset:
isReset = False
current = str(e.get())
currentlist = current.split("=")
#print(currentlist)
current = currentlist[1]
e.delete(0, END)
e.insert(0, str(current))
haveNewEntry = True
if haveNewEntry:
current = str(e.get())
e.delete(0, END)
e.insert(0, str(current)+ str(operant))
haveNewEntry = False
elif (str(e.get())!=""):
current = str(e.get())
result_str = ""
#print(len(current))
for i in range(0, len(current)):
if i != len(current)-1:
result_str = result_str + current[i]
e.delete(0, END)
e.insert(0, str(result_str) + str(operant))
def button_equal():
global history
global isReset
global haveNewEntry
if haveNewEntry:
current = str(e.get())
e.delete(0, END)
result = eval(current)
answer = "=" + str(result)
e.insert(0, answer)
history.append(current + answer)
print(history)
isReset = True
haveNewEntry = False
#Define Buttons
button_1 = Button(root, text="1", padx=40, pady=20, command=lambda: button_click(1))
button_2 = Button(root, text="2", padx=40, pady=20, command=lambda: button_click(2))
button_3 = Button(root, text="3", padx=40, pady=20, command=lambda: button_click(3))
button_4 = Button(root, text="4", padx=40, pady=20, command=lambda: button_click(4))
button_5 = Button(root, text="5", padx=40, pady=20, command=lambda: button_click(5))
button_6 = Button(root, text="6", padx=40, pady=20, command=lambda: button_click(6))
button_7 = Button(root, text="7", padx=40, pady=20, command=lambda: button_click(7))
button_8 = Button(root, text="8", padx=40, pady=20, command=lambda: button_click(8))
button_9 = Button(root, text="9", padx=40, pady=20, command=lambda: button_click(9))
button_0 = Button(root, text="0", padx=40, pady=20, command=lambda: button_click(0))
button_clear = Button(root, text="Clear", padx=29, pady=20, command= button_clear)
button_add = Button(root, text="+", padx=37.4, pady=20, command=lambda: button_operations("+"))
button_subtract = Button(root, text="-", padx=39, pady=20, command=lambda: button_operations("-"))
button_division = Button(root, text="/", padx=39, pady=20, command=lambda: button_operations("/"))
button_multiplication = Button(root, text="*", padx=39, pady=20, command=lambda: button_operations("*"))
button_equal = Button(root, text="=", padx=39, pady=20, command= button_equal)
#Display buttons
button_1.grid(row=3, column=0)
button_2.grid(row=3, column=1)
button_3.grid(row=3, column=2)
button_4.grid(row=2, column=0)
button_5.grid(row=2, column=1)
button_6.grid(row=2, column=2)
button_7.grid(row=1, column=0)
button_8.grid(row=1, column=1)
button_9.grid(row=1, column=2)
button_0.grid(row=4, column=0)
button_equal.grid(row=4, column=1)
button_clear.grid(row=4, column=2)
button_add.grid(row=1, column=3)
button_subtract.grid(row=2, column=3)
button_multiplication.grid(row=3, column=3)
button_division.grid(row=4, column=3)
root.mainloop()