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Author: neelshah2409

Python/Smart Calculator/smart_calculator.py

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+from tkinter import *
+#function for addition
+def add(a,b):
+    return a + b
+#function for subtraction
+def sub(a,b):
+    return a - b
+#function for multiplication
+def mul(a,b):
+    return a * b
+#function for division
+def div(a,b):
+    return a / b
+#function for modulo
+def mod(a,b):
+    return a % b
+#function for l.c.m
+def lcm(a,b):
+    L = a if a>b else b
+    while L <= a*b:
+        if L%a == 0 and L%b == 0:
+            return L
+        L+=1
+#function for h.c.f.
+def hcf(a,b):
+    H = a if a<b else b
+    while H >= 1:
+        if a%H == 0 and b%H == 0:
+            return H
+        H-=1
+#function to extract the needed thing only
+def extract_from_text(text):
+    l = []
+    for t in text.split(' '):
+        try:
+            l.append(float(t))
+        except ValueError:
+            pass
+    return l
+
+def calculate():
+    text = textin.get()
+    for word in text.split(' '):
+        if word.upper() in operations.keys():
+            try:
+                l = extract_from_text(text)
+                r = operations[word.upper()](l[0] , l[1])
+                list.delete(0,END)
+                list.insert(END,r)
+            except:
+                list.delete(0,END)
+                list.insert(END,'something went wrong please enter again')
+            finally:
+                break
+        elif word.upper() not in operations.keys():
+            list.delete(0,END)
+            list.insert(END,'something went wrong please enter again')
+#for getting the proper function through different keywords
+operations = {'ADD':add , 'ADDITION':add , 'SUM':add , 'PLUS':add ,
+                'SUB':sub , 'DIFFERENCE':sub , 'MINUS':sub , 'SUBTRACT':sub,
+                 'LCM':lcm , 'HCF':hcf , 'PRODUCT':mul , 'MULTIPLICATION':mul,
+                 'MULTIPLY':mul , 'DIVISION':div , 'DIV':div ,'DIVIDE':div, 'MOD':mod ,
+                  'REMANDER':mod , 'MODULUS':mod}
+
+win = Tk()
+win.geometry('500x300')
+win.title('Smart Helper')
+win.configure(bg='green')
+
+l1 = Label(win , text='Hello there ,I am a smart calculator',width=30 , padx=3)
+l1.place(x=140,y=10)
+l2 = Label(win , text='Thank you for using me !!!' , padx=3)
+l2.place(x=180,y=250)
+l3 = Label(win , text='What can i help you' , padx=3)
+l3.place(x=176,y=40)
+
+textin = StringVar()
+e1 = Entry(win , width=30 , textvariable = textin)
+e1.place(x=140,y=70)
+
+b1 = Button(win , text='Find this' ,command=calculate)
+b1.place(x=200,y=100)
+
+list = Listbox(win,width=20,height=3)
+list.place(x=170,y=125)
+
+win.mainloop()