import os
import glob

def rename_files(directory):
    filelist = glob.glob(filemask)
    for filename in filelist:
        basename = os.path.basename(filename)
        directory = os.path.dirname(filename)
        file_parts = basename.split('_')
        filepath = os.path.join(directory, filename)
        file_parts[3] = file_parts[3].replace('SINGLE', '')
        #file_parts[3] = file_parts[3] + 'SINGLE'
        new_file_name = '_'.join(file_parts)
        new_file_path = os.path.join(directory, new_file_name)
        try:
            os.rename(filename, new_file_path)
            print(filename, new_file_path)
        except OSError as e:
            print(f"Error renaming file {new_file_path}: {e}")

# Specify the directory containing the files
directory = '/webdata/web/www/htdocs/data/geo/images/suvi-goes-16/animation_images'
channel = '*_HE303SINGLE_*'
#channel = '*_HE303_*'
filemask = os.path.join(directory, channel)

# Call the function to rename files
rename_files(filemask)