I had to patch the client to get the authorize_account-command to work (interactively): (ed: lets put that in the righ order, shall we - the dict-key needs two dashes):

    diff -u b2.orig b2
    --- b2.orig     2015-12-17 02:01:55.500314405 +0100
    +++ b2  2015-12-17 02:00:31.032066222 +0100
    @@ -349,7 +349,7 @@

     def authorize_account(args):

    -    auth_urls = {'-production':'https://api.backblaze.com'}
    +    auth_urls = {'--production':'https://api.backblaze.com'}

         option = '--production'
         url = auth_urls[option]

[ed2: quest #182330 "Bug/typo in CLI tool" created -- that's a nasty bugtracker you've got there. Is it possible to just email support somewhere? I get grumpy when I need to run javascript and fill in CAPTCHAs just to file a simple bug ;-) ]