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process the parameter

Code Magnets Solution

You were to rearrange the code magnets to complete the function required. The following
functionality is implemented:
1. Accept a single parameter (the surfer ID).
2. Process the data file one line at a time, creating a hash from the line on each iteration.
3. Compare the parameter against the ID read from the file.
4. If the IDs match, return the hash to the caller.
5. If no match is found, return an empty hash to the caller.

Open the file so that you

def find_details(id2find): can read the data.
surfers_f = open("surfing_data.csv")

Use “for" to
loop through for each_line in surfers_f:
each of the lines Make sure the hash starts out empty.
in the file. s = {}
(s['id'], s['name'], s['country'], s['average'], s['board'],
s['age']) = each_line.split(";")
Check if the ID if id2find == int(s['id']): Cut up the line (using split()) and
supplied as a parameter assign the data to the hash (using
is the same as the one multiple-assignment).
surfers_f.close()
read from the file. You have a match! So, close
return(s) the file then return the
current hash to the caller.
surfers_f.close()

return({})
Load this!
You processed the entire
file but found NO MATCH.
Close the file and return an
empty hash.
Download surfing_data.csv from
the Head First Programming website before
continuing. Be sure to put the file in the
same directory/folder as your code.

166 Chapter 5