Upload multiple images

upload_images.py

def upload_images(upload_folder, input_name='image'):
    """
    Upload images with flask
    :param multiple:
    :param upload_folder:
    :param input_name:
    :return:
    """
    from werkzeug.utils import secure_filename
    import os
    import random
    from flask import request

    allowed_types = ['image/jpg', 'image/jpeg', 'image/png', 'image/svg+xml', 'image/gif']

    if not upload_folder:
        msg = u'No se especifico carpeta de subida'
        print(msg)
        raise Exception(msg)

    if input_name in request.files:
        file_uploaded = request.files.getlist(input_name)
        final_list = []

        for img in file_uploaded:
            if img.filename == '':
                msg = u'Error de nombre de archivo'
                print(msg)
                raise Exception(msg)

            if img.content_type in allowed_types:
                filename = u'{}_{}'.format(random.randint(999, 9999), secure_filename(img.filename))
                upload = img.save(os.path.join(upload_folder, filename))
                print(u'---------> upload: {}'.format(upload))
                final_list.append(filename)
            else:
                msg = u'Archivo {} no permitido'.format(img.filename)
                print(msg)
                raise Exception(msg)

        return final_list
    else:
        msg = u'Sin archivo'
        print(msg)
        raise Exception(msg)