# File: ChapterStrings/binToDec.py """ >>> bin(16) '0b10000' >>> hex(16) '0x10' Enter binary string? 101010 binary= 101010 decimal= 42 """ def main(): s = input("Enter binary string? " ) n = 0 # decimal my number many = len(s) for k in range(many): n = n + int(s[k]) * 2 ** (many-1-k) print("binary=", s, " decimal=",n) main()