Convert binary to decimal  with Python 

Well! how to convert binary to decimal

For binary number with n digits:

dn-1 ... d3 d2 d1 d0

The decimal number is equal to the sum of binary digits (dn) times their power of 2 (2n):

decimal = d0×20 + d1×21 + d2×22 + ...

There list the sample code of python 

def binaryToDecimal(binary): 

   i = 0

   dec=0

   length=len(binary)

   #print("length")

   #print(length)

   while i< length: 

       if binary[i]=='1':

         dec=dec+2**(length-i)

         #print("dec")

         #print(dec)

       else:

         dec=dec

        # dec = binary % 10

       # decimal = decimal + dec * pow(2, i) 

       # binary = binary//10

       i += 1

   

   return dec    

input binary code :['0', '1', '0', '0', '1', '1', '1', '1', '0', '1', '0', '0', '0', '1', '1', '1', '1', '1', '1', '0', '1', '1', '1', '0', '1', '1', '1', '0', '1', '0', '1', '1']

output decimal code:  1,330,114,283‬