On Fri, 2011-05-06 at 13:47 +0300, Lutfi Oduncuoglu wrote: > Hi, > > I am trying to write a script and I realised that I need to use > something like > > if ('a' or 'b' or 'c') not in line: > print line > The expression: ('a' or 'b' or 'c') evaluates to True True not in line Is probably not what you intended.