[Tutor] monitor number of files in a folder

[Νικόλαος Ράπτης]

Well, os.listdir doesn't include "." or ".." anyway as you can see here 
<http://docs.python.org/library/os.html#os.listdir>
So, just a simple    len(os.listdir(my_directory))    will suffice..

A couple more points:
-It's better looking and more readable (to me that means Pythonic) to 
store that ugly path to a variable first.
-Whenever you see yourself repeating a chunk of code, make a function 
out of it!


So, your program now is
------------------------------
import os, time

my_directory = 
'/Volumes/sgtb/lac/comps/Z353_002/renders/Z353_002_comp/Z353_002_comp_v04/2048x1556'

while len(os.listdir(my_directory)) <= 8:
   print 'waiting'
   time.sleep(5)
   print 'still waiting'
   time.sleep(5)

print 'eight'
-------------------------------


Nick (also, this is my first post)

pedro wrote:
> I got it working but it seems little clunky. If I have a folder with 6 
> files in it, python will print out "waiting, still waiting, waiting, 
> still waiting..." if I add 3 new file to the folder python prints 
> "eight". This is the basic behaviour I want but is there a more 
> pythonic way to write this.
>
>
>
> import os, time
>
> theFilesAsList = []
>
> for anItem in 
> os.listdir('/Volumes/sgtb/lac/comps/Z353_002/renders/Z353_002_comp/Z353_002_comp_v04/2048x1556'): 
>
>
>
>   if anItem[0] != ".":
>        theFilesAsList.append(anItem)
> theNumberOfImages = len(theFilesAsList)
>
> while theNumberOfImages <= 8:
>    print 'waiting'
>    time.sleep(5)
>    print 'still waiting'
>    time.sleep(5)
>    theFilesAsList = []
>    for anItem in 
> os.listdir('/Volumes/sgtb/lac/comps/Z353_002/renders/Z353_002_comp/Z353_002_comp_v04/2048x1556'): 
>
>
>
>       if anItem[0] != ".":
>            theFilesAsList.append(anItem)
>    theNumberOfImages = len(theFilesAsList)
> print 'eight'
>
>
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