scrapy/scrapy — pull request #258 by stav (2013-03-03 02:19:01+00:00)
Title: fetch method should catch IgnoreRequest exception

I think the fetch method can ignore the `IgnoreRequest` exception from say, the retry middleware:

DEBUG: Discarding : max redirections reached

but without the `try` in there, the fetch will fail, and thusly the `shell` command.