call definite folder name and value in dictionary in Python -


i want write function copy structure , content of 1 root folder 1 (that contains of files in initial folder , function must compare files , directories , copy if not exists in destination folder). name of folders dict.values(). 

def copy_tran(reg_dir):      z_folders = os.listdir(reg_dir)     png_folder = r'c:\users\tei\desktop\temp'     png_subfolders = os.listdir(png_folder)     dir in z_folders:         pngdir in png_subfolders:             path_dir2 = os.path.join(png_folder, pngdir)              path_dir = os.path.join(reg_dir, dir)             transp_basename = os.path.basename(path_dir)[4:]              png_basename = os.path.basename(path_dir2)[4:]              if transp_basename == png_basename:                 region in dict.values():                     if not os.path.exists(png_folder + '\\' + 'reg_' + ('%s' % (region))):                         os.mkdir(png_folder + '\\' + 'reg_' + ('%s' % (region)))                     list_zooms = ['8', '9', '10', '11']                                        zoom in list_zooms:                         if not os.path.exists(png_folder + '\\' + 'reg_' + ('%s' % (region)) + '\\' + (                                     '%s' % (zoom))):                             os.mkdir(png_folder + '\\' + 'reg_' + ('%s' % (region)) + '\\' + ('%s' % (zoom)))                         x_path = os.path.join(path_dir, zoom)                         list_x = os.listdir(x_path)                         y in list_x:                             y_path = os.path.join(x_path, y)                             if not os.path.exists(png_folder + '\\' + 'reg_' + ('%s' % (region)) + '\\' + (                                 '%s' % (zoom)) + '\\' + y):                                 os.mkdir(png_folder + '\\' + 'reg_' + ('%s' % (region)) + '\\' + ('%s' % (zoom)) + '\\' + y)

my code (image) here (debug)

the problem when comparing folder's names, python takes random (as see) folder in root folder (reg_centrsib_north) although in list (2nd line) second element. so, function creates wrong folders (in destination folder reg_center function create subfolders folder reg_centrsib_north). way need rewrite code calls folders of same name (that dict.values())? i'm puzzled, ideas?

try simple solution problem based on shutil.copy2

def copydir(src, dst, symlinks=false, ignore=none):     if not os.path.exists(dst):         os.makedirs(dst)     item in os.listdir(src):         s = os.path.join(src, item)         d = os.path.join(dst, item)         if os.path.isdir(s):             copydir(s, d, symlinks, ignore)         else:             if not os.path.exists(d) or os.stat(s).st_mtime - os.stat(d).st_mtime > 1:                 shutil.copy2(s, d)

this recursive implementation:

  1. check if destination folder exists, if not create it
  2. loop on every element of source folder
  3. if folder call function on , goto 1
  4. if file check if exists , if modified: based on copy

this should jsut copy not esist or has been modified


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