Edit download_tiles.py to specify the area and the zoom level you want.
zoom = 15
lat_start, lon_start = 46.53, 6.6
lat_stop, lon_stop = 46.49, 6.7
satellite = True # roads if false
You can easily find coordinates with http://itouchmap.com/latlong.html.
Then, run $ python download_tiles.py and get individual tiles:
...
15_16989_11588_s.jpg
15_16989_11589_s.jpg
15_16989_11590_s.jpg
...
Edit merge_tiles.py to specify the area and the zoom level you want, it's just the same as before.
zoom = 15
lat_start, lon_start = 46.53, 6.6
lat_stop, lon_stop = 46.49, 6.7
satellite = True # roads if false
Then, run $ python merge_tiles.py and get map_s.jpg for satellite or map_r.png for roads.
Note: merging the tiles requires Python Image Library.
You can do the same with Swiss Topo maps: https://www.github.com/nst/swiss_topo_tiles.