Conditional expressions (again)

Terry Reedy tjreedy at home.com
Fri Oct 26 18:05:54 CEST 2001


compare
> order.append(
>     spam if customer == michae1 else
>     eggs if customer == john else
>     cheese)
>
> with
>
> if customer == michael:
>     side0rder = spam
> elif customer == john:
>     sideOrder = eggs
> else:
>     sideOrder = cheese
> order.append(sideOrder)
>
> in terms of how likely each error is to arise in testing, and how
much
> time it would take to work out what was going wrong.  I find that
almost
> convincing ;-)

How about (untested)

order.append( {michael:spam, john:eggs}.get(customer,cheese) )

Terry J. Reedy






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