The format_address function separates out parts of the address string into new strings: house_number and street_name, and returns: "house number X on street named Y". The format of the input string is: numeric house number, followed by the street name which may contain numbers, but never by themselves, and could be several words long.

function format_address separates it into two strings :

house_number and

street_name

Explanation:

For example, “123 Main Street”, “1001 1st Ave”, or “55 North Center Drive”. Fill in the gaps to complete this function.

 # Declare variables

 house_number =''

 street_name =''

 # Separate the address string into parts

 spi = address_string.split()

 # Traverse through the address parts

 for ele in spi:

   # Determine if the address part is the

   # house number or part of the street name

   if ele.isdigit():

     house_number = ele

   else:

     street_name += ele

     street_name += ' '

 # Does anything else need to be done  

 # before returning the result?

 # Return the formatted string  

 return "house number {} on street named {}".format(house_number, street_name)

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explanation: