Number to Words conversion

Author: Avdhesh-Varshney

Number-To-Words/Screenshots/1.png

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+import tkinter as tk
+
+digit = ["Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"]
+denominations = ["", "Thousand", "Million", "Billion", "Trillion"]
+tens = ["Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"]
+ties = ["Ten", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"]
+
+def convertNumberToWords():
+    inputValue = numberEntry.get()
+
+    if not inputValue.isdigit():
+        resultLabel.config(text="Invalid Entered Value", fg="red")
+
+    elif len(inputValue) > 15:
+        resultLabel.config(text="Entered number is too large", fg="yellow")
+
+    else:
+
+        while len(inputValue) % 3 != 0:
+            inputValue = "0" + inputValue
+
+        inputValue = inputValue[::-1]
+
+        def add(s1, s2):
+            if s1 and s2:
+                return s1 + " " + s2
+            return s1 + s2
+
+        def convert(index, level):
+            if index >= len(inputValue):
+                return ""
+
+            cur = ""
+            od = int(inputValue[index])
+            td = int(inputValue[index + 1])
+            hd = int(inputValue[index + 2])
+
+            if hd:
+                cur = add(cur, add(digit[hd], "Hundred"))
+
+            if td:
+                if td == 1:
+                    cur = add(cur, tens[od])
+                else:
+                    cur = add(cur, ties[td - 1])
+                    if od:
+                        cur = add(cur, digit[od])
+            elif od:
+                cur = add(cur, digit[od])
+
+            if cur:
+                cur = add(cur, denominations[level])
+
+            return add(convert(index + 3, level + 1), cur)
+
+        result = "Zero" if inputValue == "000" else convert(0, 0)
+        resultLabel.config(text=result, fg="white")
+
+window = tk.Tk()
+window.title("Number to Words Converter")
+window.configure(background="black")
+
+numberLabel = tk.Label(window, text="Enter Number:", bg="black", fg="white")
+numberEntry = tk.Entry(window)
+resultLabel = tk.Label(window, text="In Words:", bg="black", fg="white")
+convertButton = tk.Button(window, text="Convert", command=convertNumberToWords)
+
+numberLabel.grid(row=0, column=0, padx=10, pady=10)
+numberEntry.grid(row=0, column=1, padx=10, pady=10)
+convertButton.grid(row=1, column=0, columnspan=2, padx=10, pady=10)
+resultLabel.grid(row=2, column=0, padx=10, pady=10, columnspan=2)
+
+window.mainloop()