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Chapter 5 Surf Program


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#1 jgeter

jgeter

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Posted 29 June 2015 - 02:03 PM

scores = {}       
result_f = open("results.txt")
for line in result_f:
    (name, score) = line.split()
    scores[score] = name
result_f.close()
print ("The top scores were:")
for each_score in scores.keys():
    print ('Surfer ' + scores[each_score] + ' scored ' + each_score)
 
the line scores[score]=name is actually getting the surfer name from the file or is it  associating the name with the score putting the line back together so to speak after it was split?


#2 #TM#

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Posted 02 July 2015 - 10:41 AM

Hi jgeter, It is doing neither.

 

It is actually populating the dictionary.

scores = {}

means dictionary is initialized. But you have to read the file "results.txt" and populate the dictionary with scores and names. So,

for line in result_f:
    (name, score) = line.split()
    scores[score] = name

In here you are reading each line of the file, then splitting the name and score and storing the score (as key) and respective name (as value) in the dictionary.

 

For more follow the below link:

 

http://www.tutorials..._dictionary.htm

 

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Edited by #TM#, 02 July 2015 - 10:55 AM.





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