[web2py] invalid literal for int() with base 10: '%s%id'

[Praveen Bhat]

Hello,

I am getting the following error:

<type 'exceptions.ValueError'> invalid literal for int() with base 10: 
'%s%id'

and the code in my controller is:

def show():
redirect(URL(c='articles',f='show?id=%s%id'))

which redirects to the following function in articles controller:

def show():
id=request.vars.id
articles=db(db.article.id==id).select()
if not len(articles): redirect(URL('articles'))
return dict(article=articles[0])

Could someone help me out?

Regards
Praveen