Read Contents from URL



In [148]:

    
from urllib.request import urlopen

url_response = urlopen('http://www.py4inf.com/code/mbox-short.txt')
contents = str(url_response.read())

Split Contents Into Lines Using New-line ('\n')



In [149]:

    
lines = contents.split('\\n')

Slick Way



In [186]:

    
total = 0
count = 0
for line in lines:
    if line.startswith('X-DSPAM-Confidence'):
        (_, value) = line.split(':')
        total += float(value)
        count = count + 1

print(total/count)









    



0.7507185185185187

Slickest Way!



In [184]:

    
values = [float(line.split(':')[1]) for line in lines if line.startswith('X-DSPAM-Confidence')]

sum(values) / len(values)









    Out[184]:





0.7507185185185187



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