Re: [Tutor] Getting "file sizes"

Magnus Lycka magnus at thinkware.se
Thu Feb 19 04:02:38 EST 2004


R. Alan Monroe wrote:
> This isn't recursive, but for a single directory it would work:
> 
> [(x,os.path.getsize(x)) for x in os.listdir('c:/')]

Only if 'c:/' happens to be your current working directory...

The problem is that os.listdir just returns file names, not
full paths. os.path.getsize(x) won't find x if it's just the
name of a file located in another directory than the current.

If you would for instance replace os.listdir('c:/') with 
glob.glob('c:/*') you would get full paths that make
os.path.getsize happy. You could also do

dir = 'c:/'
print [(x,os.path.getsize(dir+x)) for x in os.listdir(dir)]

For a recursive version, try os.walk.

for root, dirs, files in os.walk('d:/nyponverktyg'):
    for file in files:
        path = os.path.join(root, file)
        print path, os.path.getsize(path)


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Magnus Lycka, Thinkware AB
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