Searching a csv file for an id [Solved]

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Hi I'm reading head first programming, chapter 5. In this chapter, a program is written to get a contestant's details by inputting a number as an id. The program does this by searching through a csv file named "surfers_data.csv".
Whenever I run it, it returns nothing as results; it seems that no contestants owns this id; however there is one.
Here is the code:

def find_details(id2find):
    surfers_f=open("surfing_data.csv")
    for line in surfers_f:
        s={}
        (s['id'],s['name'],s['country'],s['average'],s['board'],s['age']) = line.split(";")
        if id2find==int(s['id']):
            surfers_f.close()
            return s
        surfers_f.close()
        return ({})

lookup_id = int(input("Enter the id of the surfer: "))
surfer = find_details(lookup_id)
if surfer:
    print("ID: " + surfer['id'])
    print("Name: " + surfer['name'])
    print("Country: " + surfer['country'])
    print("Average: " + surfer['average'])
    print("Board type: " + surfer['board'])
    print("Age: " + surfer['age'])

And the output is:
>> Enter the id of the surfer: 104 #I input this number as the id
>>#prints nothing as the result

Note: The csv file is accessible here: http://headfirstlabs.com/books/hfprog/chapter05/surfing_data.csv[^]