[Tutor] variable in format string throwing error

[Mark Lawrence]

On 13/05/2013 22:51, Jim Mooney wrote:
> I'm trying variable substitution in a format string that looks like one
> that works, but I get an error. What am I doing wrong? tks
>
> x = 40
> s = 'John flew to the {0:-^{x}} yesterday'
> print(s.format('moon', x))
>
> Error is builtins.KeyError: 'x'
>
> --
> Jim
>

Using over complicated modern string formatting?  Stick with the old C 
style % style and it's much easier.  Contrary to popular belief it's not 
going away :)

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Mark Lawrence