Is there a better/simpler way to filter blank lines?

Larry Bates larry.bates at
Tue Nov 4 22:36:23 CET 2008

bearophileHUGS at wrote:
> tmallen:
>> I'm parsing some text files, and I want to strip blank lines in the
>> process. Is there a simpler way to do this than what I have here?
>> lines = filter(lambda line: len(line.strip()) > 0, lines)
> xlines = (line for line in open(filename) if line.strip())
> Bye,
> bearophile

Of if you want to filter/loop at the same time, or if you don't want all the 
lines in memory at the same time:

fp = open(filename, 'r')
for line in fp:
     if not line.strip():

     # Do something with the non-blank like:



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