Write a Python program to find maximum length of consecutive 0s in a given binary string

def max_consecutive_0(input_str): 
     return  max(map(len,input_str.split('1')))
str1 = '111000010000110'
print("Original string:" + str1)
print("Maximum length of consecutive 0’s:")
print(max_consecutive_0(str1))
str1 = '111000111'
print("Original string:" + str1)
print("Maximum length of consecutive 0’s:")
print(max_consecutive_0(str1))