900         return tmpl('helptopics', topics=topics, earlycommands=earlycommands,

   900         return tmpl('helptopics', topics=topics, earlycommands=earlycommands,

   901                     othercommands=othercommands, title='Index')

   901                     othercommands=othercommands, title='Index')

   902 

   902 

   903     u = webutil.wsgiui()

   903     u = webutil.wsgiui()

   904     u.pushbuffer()

   904     u.pushbuffer()

   905     try:

   906     try:

   906         commands.help_(u, topicname)

   907         commands.help_(u, topicname)

   907     except error.UnknownCommand:

   908     except error.UnknownCommand:

   908         raise ErrorResponse(HTTP_NOT_FOUND)

   909         raise ErrorResponse(HTTP_NOT_FOUND)

   909     doc = u.popbuffer()

   910     doc = u.popbuffer()