PROBLEM SOLVING IN PYTHON 2 (NUMBER CONVERSION IN PYTHON)

   

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	DIFFERENENT CONVERSION METHODS FOR HEXA, OCTA AND BINARY
	In this write-up, we have shared different methods for converting numbers from one base to the other 1. CONVERT A SINGLE DECIMAL NUMBER TO HEXADECIMAL def Hex(n): h = (n % 16) hex_nums = "0123456789ABCDEF" h1 = n // 16 if (h1 == 0): return hex_nums[h] return Hex(h1) + hex_nums[h] for i in range (0, 255): print (Hex(i)) 2. CONVERT A SINGLE DECIMAL NUMBER TO BINARY def Bin(n): b = (n % 2) bin_nums = "01" b1 = n // 2 if (b1 == 0): return bin_nums[b] return Bin(b1) + bin_nums[b] for i in range (0, 3): print (Bin(i))
	3. CONVERT A SINGLE DECIMAL NUMBER TO OCTAL def Oct(n): o_c = (n % 8) oct_nums = "01234567" o_c1 = n // 8 if (o_c1 == 0): return bin_nums[o_c] return Bin(o_c1) + oct_nums[o_c] for i in range (0, 10): print (Oct(i))
	4. ANOTHER METHOD HEXADECIMAL CONVERSION def main(): result = int(input("Enter a whole, positive, number to be converted to hexadecimal: ")) hexadecimal = "" while result != 0: remainder = changeDigit(result % 16) hexadecimal = str(remainder) + hexadecimal result = int(result / 16) print(hexadecimal) def changeDigit(digit): decimal = [10 , 11 , 12 , 13 , 14 , 15 ] hexadecimal = ["A", "B", "C", "D", "E", "F"] for counter in range(7): if digit == decimal[counter - 1]: digit = hexadecimal[counter - 1] return digit main()
	5. THIS METHOD TAKES BASE, RANGE AS INPUT AND CONVERT AT ONCE def HEX2(): a= int(input('Enter start:\t')) e= int(input('Enter end:\t')) d= int(input('Enter base:\t')) for i in range (a, e): b = "" while i != 0: x = '0123456789ABCDEF' c = i % d c1 = x[c] b = str(c1) + b i = int(i // d) print(b) HEX2()
	6. TAKES ANY DECIMAL NUMBER AND CONVERT TO ANY GIVEN BASE def HEX2(): a= int(input('Enter decimal number: \t')) d= int(input('Enter expected base: \t')) b = "" while a != 0: x = '0123456789ABCDEF' c = a % d c1 = x[c] b = str(c1) + b a = int(a // d) print(b) HEX2()
	7. THIS METHOD REQUIRES INPUT RANGE def HEX2(): for a in range (0, 256): b = "" while a != 0: x = '0123456789ABCDEF' c = a % 16 c1 = x[c] b = str(c1) + b a = int(a // 16) print(b) HEX2()
	8. TAKES JUST THE NUMBER TO CONVERT AND THE BASE AND DISPLAY ON GUI import tkinter as tk from tkinter import* import time def HEX2(): a = int(name_sE.get()) d = int(name_sE2.get()) b = "" while a != 0: x = '0123456789ABCDEF' c = a % d c1 = x[c] b = str(c1) + b a = int(a // d) #print(b) T.delete(1.0, END) T.insert(END, b) def clear_text(): name_sE.delete(0, 'end') name_sE2.delete(0, 'end') return myApp = tk.Tk() myApp.title("Designed by Grace Samson (2017)") myApp.geometry("500x300+0+0") Tops =Frame(myApp, width=300, height = 60, bg ="blue", relief=SUNKEN) Tops.pack(side = TOP) f1 =Frame(myApp, width=500, height = 200, relief=SUNKEN) f1.pack(side = LEFT) f2 =Frame(myApp, width=500, height = 200, relief=SUNKEN) f2.pack(side = RIGHT) d_time = time.asctime(time.localtime(time.time())) lbl1= Label(Tops, font=("arial", 14, "bold"), text= "NUMBER SYSTEM CONVERTER", fg="Steel Blue", bd= 10) lbl1.grid(row=0, column=0) lbl1= Label(Tops, font=("arial", 8, "bold"), text= d_time, fg="Steel Blue", bd= 10) lbl1.grid(row=1, column=0) #signup_bt = Button(Tops, text = 'CONVERSION', # font=("arial", 12, "bold"), width = 15, command =conv_detail) #signup_bt.grid(row=3, column=1) inst2 = Label(f1, font=("arial", 12, "bold"), text ='ENTER NUMBER AND BASE FOR CONVERSION', fg ='RED') inst2.grid(row = 0, column=0, sticky=E) namelbls = Label(f1, font=("arial", 10, "bold"), text ='NUMBER: ') namelbls.grid(row = 3, column=0, sticky=W) name_sE = Entry(f1) name_sE.grid(row = 3, column = 0) #name_sE.bind('<Return>', HEX2) namelbls2 = Label(f1, font=("arial", 10, "bold"), text ='BASE: ') namelbls2.grid(row = 4, column=0, sticky=W) name_sE2 = Entry(f1) name_sE2.grid(row = 4, column = 0) #name_sE2.bind('<Return>', HEX2) conv_bt = Button(f1, text = 'CONVERT', font=("arial", 10, "bold"), width = 10, fg = 'blue', command =HEX2) conv_bt.grid(columnspan=2, sticky=W) reset_bt = Button(f1, text = 'RESET', font=("arial", 10, "bold"), width = 8, fg = 'blue', command =clear_text) reset_bt.grid(columnspan=2, sticky=W) S = Scrollbar(f2) T = Text(f2, height=10, width=50) S.pack(side=RIGHT, fill=Y) T.pack(side=LEFT, fill=Y) S.config(command=T.yview) T.config(yscrollcommand=S.set) ##if __name__ == __"main"__: ## Main() myApp.mainloop()
	9. TAKES BASE, RANGE AS INPUT AND CONVERT AT ONCE WHILE DISPLAYING ON GUI import tkinter as tk from tkinter import* import time def HEX2(): a = int(name_sE.get()) d = int(name_sE2.get()) b = "" while a != 0: x = '0123456789ABCDEF' c = a % d c1 = x[c] b = str(c1) + b a = int(a // d) #print(b) T.delete(1.0, END) T.insert(END, b) def clear_text(): name_sE.delete(0, 'end') name_sE2.delete(0, 'end') return myApp = tk.Tk() myApp.title("Designed by Grace Samson (2017)") myApp.geometry("500x300+0+0") Tops =Frame(myApp, width=300, height = 60, bg ="blue", relief=SUNKEN) Tops.pack(side = TOP) f1 =Frame(myApp, width=500, height = 200, relief=SUNKEN) f1.pack(side = LEFT) f2 =Frame(myApp, width=500, height = 200, relief=SUNKEN) f2.pack(side = RIGHT) d_time = time.asctime(time.localtime(time.time())) lbl1= Label(Tops, font=("arial", 14, "bold"), text= "NUMBER SYSTEM CONVERTER", fg="Steel Blue", bd= 10) lbl1.grid(row=0, column=0) lbl1= Label(Tops, font=("arial", 8, "bold"), text= d_time, fg="Steel Blue", bd= 10) lbl1.grid(row=1, column=0) #signup_bt = Button(Tops, text = 'CONVERSION', font=("arial", 12, "bold"), width = 15, command =conv_detail) #signup_bt.grid(row=3, column=1) inst2 = Label(f1, font=("arial", 12, "bold"), text ='ENTER NUMBER AND BASE FOR CONVERSION', fg ='RED') inst2.grid(row = 0, column=0, sticky=E) namelbls = Label(f1, font=("arial", 10, "bold"), text ='NUMBER: ') namelbls.grid(row = 3, column=0, sticky=W) name_sE = Entry(f1) name_sE.grid(row = 3, column = 0) #name_sE.bind('<Return>', HEX2) namelbls2 = Label(f1, font=("arial", 10, "bold"), text ='BASE: ') namelbls2.grid(row = 4, column=0, sticky=W) name_sE2 = Entry(f1) name_sE2.grid(row = 4, column = 0) #name_sE2.bind('<Return>', HEX2) conv_bt = Button(f1, text = 'CONVERT', font=("arial", 10, "bold"), width = 10, fg = 'blue', command =HEX2) conv_bt.grid(columnspan=2, sticky=W) reset_bt = Button(f1, text = 'RESET', font=("arial", 10, "bold"), width = 8, fg = 'blue', command =clear_text) reset_bt.grid(columnspan=2, sticky=W) S = Scrollbar(f2) T = Text(f2, height=10, width=50) S.pack(side=RIGHT, fill=Y) T.pack(side=LEFT, fill=Y) S.config(command=T.yview) T.config(yscrollcommand=S.set) ##if __name__ == __"main"__: ## Main() myApp.mainloop()

10. CONVERTING BACK FROM ANY BASE TO DECIMAL

    s = 0

    a = (input('enter num: ')).upper()

    b = int(input('enter base: '))

    for pos, digit in enumerate(a[-1::-1]):

        s= (int(digit) * (b**pos)) + s

    print(s)

    11. CONVERTING BACK FROM BINARY TO DECIMAL

    binary = input('enter a number: ')

    b = int(input('enter base: '))

    decimal = 0

    for digit in binary:

        decimal = decimal*b + int(digit)

        print(decimal)

        12. CONVERTING BACK FROM ANY BASE TO DECIMAL

     def todec():

          c = int(input('Enter base of the number to convert to decimal:\t'))

          a = (input('Then enter the number:\t ')).upper()

          b = list(a)

          s = 0

          x = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']

          for pos, digit in enumerate(b[-1::-1]):

                 y = x.index(digit)

                  if int(y)/c >= 1:

                       print('Invalid input!!!')

                       break

                       s = (int(y) * (c**pos)) + s

                       return (s)

todec()

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