use the max() built-in function to get the longest string length : loop through « File « Python Tutorial






  1. Python Tutorial
  2. File
  3. loop through
f = open('/etc/motd', 'r')
allLineLens = [len(x.strip()) for x in f]
f.close()

print max(allLineLens)








12.7.loop through
12.7.1.Using Iterators with Files
12.7.2.Get the longest line
12.7.3.use the max() built-in function to get the longest string length
12.7.4.A file iterator
12.7.5.read a file line by line with a while loop