[Tutor] directory within directory

[Peter Otten]

questions anon wrote:

> Thank you, that does create the directories in the new place but when I
> process the data it does not put the outputs in the correct directory they
> all end up in the last directory created.
> Below is the code of what I am trying to do.
> Any feedback will be greatly appreciated.

I think

> for (path, dirs, files) in os.walk(inputpath):
>     for dir in dirs:
>         print dir
>         sourcepath=os.path.join(path,dir)
>         relativepath=os.path.relpath(sourcepath,inputpath)
>         newdir=os.path.join(outputpath,relativepath)

the following two lines

>     if not os.path.exists(newdir):
>         os.makedirs(newdir)

belong in the for-dirs-loop. plt.savefig() belongs into the for-ncfile loop 
and needs a path based on the path variable:
> 
>     for ncfile in files:
>         if ncfile[-3:]=='.nc':
          ...
              relativepath = os.path.relpath(path, inputpath)
              newdir = os.path.join(outputpath, relativepath)
              plt.savefig((os.path.join(newdir,'TSFC'+date_string+'UTC.png')))

All untested guesswork. I don't see how you ensure that you get a new figure 
for each *.nc file and am too lazy to consult the matplotlib 
documentation...