HN user
The licence (GPLv3) limits its use a bit - at least for people who prefer other licences like BSD or MIT.
The generated C++ source contains the following comment:
// This code is in part copyright Kay Hayen, license GPLv3. This has the consequence that // your must either obtain a commercial license or also publish your original source code // under the same license unless you don't distribute this source or its binary.
The openstreetmap project lets you download its whole dataset: http://wiki.openstreetmap.org/wiki/Planet
They also got a API ... see the wiki.
I have done some webscraping with twisted and BeautifulSoup. But it was just for a few small sites.
That was when I found http://scrapy.org/ , a complete python framework for writing webcrawlers. It looks promissing, but I haven't used it so far.
The link on the download page seems to be broken. The correct one is on the community page: http://github.com/nddrylliog/ooc/