code: def convert2jpg(path_in, path_out, args):
      """Convert all file in a folder to jpg files.
  
      Args:
        path_in: the folder that contains the files to be converted
        path_out: the folder to export the converted files
        args: the args from the parser
          args.crop: a boolean, true for cropping
          args.delete: a boolean, true to remove original file
          args.xsize: width size of the new jpg
          args.ysize: height size of the new jpg
  
      Returns:
        nothing
  
      Raises:
        nothing
      """
      path = "{}/*".format(path_in)
      print("looking for all files in", path)
      files = glob.glob(path)
      file_count = len(files)
      print("found ", file_count, "files")
  
      i = 0
      for image_file in files:
          i += 1
          try:
              if ntpath.basename(image_file).split(".")[-1] in [
                  "jpg",
                  "jpeg",
                  "JPG",
              ]:
                  print(
                      i,
                      "/",
                      file_count,
                      "  not converting file",
                      image_file,
                  )
                  continue  # no need to convert
              print(i, "/", file_count, "  convert file", image_file)
              img = Image.open(image_file)
              # print('file open')
              if args.xsize > 0:
                  if args.crop:
                      args.ysize = args.xsize
                      # resize the images
                      small_side = min(img.size)
                      center = img.size[0] / 2
                      margin_left = center - small_side / 2
                      margin_right = margin_left + small_side
                      img = img.crop(
                          (margin_left, 0, margin_right, small_side)
                      )
                  if args.ysize == 0:
                      args.ysize = args.xsize
                  img = img.resize(
                      (args.xsize, args.ysize), Image.ANTIALIAS
                  )
              # save file
              # remove old path & old extension:
              basename = ntpath.basename(image_file).split(".")[0]
              filename = basename + ".jpg"
              file_out = os.path.join(path_out, filename)
              print(i, "/", file_count, "  save file", file_out)
              img.save(file_out, "JPEG")
              if args.delete:
                  print("deleting", image_file)
                  os.remove(image_file)
          except:  # pylint: disable=bare-except
              print("""can't convert file""", image_file, "to jpg :")
  
imports: from __future__ import print_function
  import argparse
  import glob
  import ntpath
  import os
  from PIL import Image
label_desc: Use image node_id 1 for calling a global function with example usage: convert2jpg(path_in, path_out, args) without return types