Sigal is yet another simple static gallery generator. It’s written in Python and it allows to build a static gallery of images. The idea behind Sigal is to ease the use of the javascript libraries like galleria. These libraries do a great job to display the images, Sigal does what is missing: resize images, create thumbnails, generate HTML pages. Doesn't seem to let you put descriptions or comments on your pictures, though. EXIF tag aware. Processes directories of images recursively. Only processes new images unless you tell it not to. In some ways, seems to work like Pelican.

There is a native Arch Linux package, too.