[Tutor] select particular directories and files

[Andre' Walker-Loud]

Dear Anonymous Questioner,

I am not sure how the Windows environment works, but in linux, I would replace

>         for ncfile in glob.glob('.nc'):


with 

>         for ncfile in glob.glob('*.nc'):


ie, add the "wild card" '*' character to grab all files which end in '.nc'


Andre




On Aug 29, 2011, at 7:23 PM, questions anon wrote:

> Thanks for responding
> When I try glob.glob I receive no errors but nothing prints.
> 
> MainFolder=r"E:/Sample/"
> for dir in glob.glob(MainFolder + '01'):
>         print "my selected directories are:", dir
>         for ncfile in glob.glob('.nc'):
>             print "my selected netcdf files are:", ncfile
> 
> any suggestions? thanks
> 
> 
> On Tue, Aug 30, 2011 at 10:07 AM, Emile van Sebille <emile at fenx.com> wrote:
> On 8/29/2011 4:52 PM questions anon said...
> 
> I am trying to select particular files within
> a particular subdirectory,
> 
> You might find glob a better starting point:
> 
> ActivePython 2.6.6.15 (ActiveState Software Inc.) based on
> Python 2.6.6 (r266:84292, Aug 24 2010, 16:01:11) [MSC v.1500 32 bit (Intel)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import glob
> >>> help(glob.glob)
> Help on function glob in module glob:
> 
> glob(pathname)
>    Return a list of paths matching a pathname pattern.
> 
>    The pattern may contain simple shell-style wildcards a la fnmatch.
> 
> >>> for filename in glob.glob(r'C:\WSG\GL\2011-08\*.txt'):
>    print filename
> ...
> C:\WSG\GL\2011-08\2011-01-WIP-Details.txt
> C:\WSG\GL\2011-08\2011-02-WIP-Details.txt
> C:\WSG\GL\2011-08\2011-03-WIP-Details.txt
> C:\WSG\GL\2011-08\2011-04-WIP-Details.txt
> C:\WSG\GL\2011-08\2011-05-WIP-Details.txt
> C:\WSG\GL\2011-08\2011-06-WIP-Details.txt
> C:\WSG\GL\2011-08\2011-07 - bankToRec.txt
> C:\WSG\GL\2011-08\2011-07 - vsdsToRec.txt
> C:\WSG\GL\2011-08\2011-07-WIP-Details.txt
> C:\WSG\GL\2011-08\5790-00 RECONCILIATION.txt
> C:\WSG\GL\2011-08\BankRecUtils.txt
> C:\WSG\GL\2011-08\CapitalizationExamples.txt
> C:\WSG\GL\2011-08\DEALLOCATE-2011-04.txt
> C:\WSG\GL\2011-08\dump glsmf1 data for 2004-2010.txt
> C:\WSG\GL\2011-08\MAR DEALLOCATION.txt
> C:\WSG\GL\2011-08\Notes.txt
> C:\WSG\GL\2011-08\shipping safety net util.txt
> C:\WSG\GL\2011-08\UNBILLED WIP.txt
> C:\WSG\GL\2011-08\Vacation Accrual - post-bonus-changes.txt
> C:\WSG\GL\2011-08\Vacation Accrual - pre-bonus-changes.txt
> C:\WSG\GL\2011-08\vacation accrual notes.txt
> >>>
> 
> 
> 
> 
> I have been able to do both but not together!
> When I try to select my files within the dir loop nothing comes up, but
> when I leave the files outside the dir loops it selects all the files
> not just the ones in the dirs I have selected.
> The code I am using is:
> 
> import os
> 
> MainFolder=r"D:/samples/"
> 
> for (path, dirs, files) in os.walk(MainFolder):
>     for dir in dirs:
>         if dir=='01':
>             print "selected directories are:",dir
> 
>             for ncfile in dir:
>                   if ncfile[-3:]=='.nc':
>                         print "ncfiles are:", ncfile
> 
> Any feedback will be greatly appreciated!!
> 
> 
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