def generate_thumbnail(self, thumbnail_options, high_resolution=False,
                           silent_template_exception=False):
        """
        Return an unsaved ``ThumbnailFile`` containing a thumbnail image.

        The thumbnail image is generated using the ``thumbnail_options``
        dictionary.
        """
        thumbnail_options = self.get_options(thumbnail_options)
        orig_size = thumbnail_options['size']  # remember original size
        # Size sanity check.
        min_dim, max_dim = 0, 0
        for dim in orig_size:
            try:
                dim = int(dim)
            except (TypeError, __HOLE__):
                continue
            min_dim, max_dim = min(min_dim, dim), max(max_dim, dim)
        if max_dim == 0 or min_dim < 0:
            raise exceptions.EasyThumbnailsError(
                "The source image is an invalid size (%sx%s)" % orig_size)

        if high_resolution:
            thumbnail_options['size'] = (orig_size[0] * 2, orig_size[1] * 2)
        image = engine.generate_source_image(
            self, thumbnail_options, self.source_generators,
            fail_silently=silent_template_exception)
        if image is None:
            raise exceptions.InvalidImageFormatError(
                "The source file does not appear to be an image")

        thumbnail_image = engine.process_image(image, thumbnail_options,
                                               self.thumbnail_processors)
        if high_resolution:
            thumbnail_options['size'] = orig_size  # restore original size

        filename = self.get_thumbnail_name(
            thumbnail_options,
            transparent=utils.is_transparent(thumbnail_image),
            high_resolution=high_resolution)
        quality = thumbnail_options['quality']
        subsampling = thumbnail_options['subsampling']

        img = engine.save_image(
            thumbnail_image, filename=filename, quality=quality,
            subsampling=subsampling)
        data = img.read()

        thumbnail = ThumbnailFile(
            filename, file=ContentFile(data), storage=self.thumbnail_storage,
            thumbnail_options=thumbnail_options)
        thumbnail.image = thumbnail_image
        thumbnail._committed = False

        return thumbnail
dataset/ETHPy150Open SmileyChris/easy-thumbnails/easy_thumbnails/files.py/Thumbnailer.generate_thumbnail