Stupid string formatting question

[Bengt Richter]

On Fri, 17 May 2002 01:19:59 -0000, "Michael S. Fischer" <michael+usenet at dynamine.net> wrote:

>Why can't I do this?

No apparent reason.

>
>    def foo(x):
>      # Do some operations on x yielding a and b
>      return a, b
>
>    print "a = %s, b = %s" % (foo(x))
>
>It seems counter-intuitive that although foo is defined to return a 2-item
>tuple, the interpreter just doesn't get it.
>

Try posting an example copied and pasted from an interactive session.
It looks like you did something else.

 >>> def foo(x):
 ...     # Do some operations on x yielding a and b
 ...     a = 'eigh-'+x
 ...     b = 'bee-'+x
 ...     return a,b
 ...
 >>> x='exx'
 >>> print "a = %s, b = %s" % (foo(x))
 a = eigh-exx, b = bee-exx

also, since a tuple is returned

 >>> print "a = %s, b = %s" % foo(x)
 a = eigh-exx, b = bee-exx

Regards,
Bengt Richter