Printing with interspersed element

Arnaud Delobelle arnodel at
Thu Oct 30 21:42:02 CET 2008

On Oct 30, 8:07 pm, "Paulo J. Matos" <p... at> wrote:
> Hi all,
> I guess this is a recurring issue for someone who doesn't really know
> the python lib inside out. There must be a simple way to do this.
> I have a list of objects [x1, x2, x3, ..., xn] and I have defined a
> print method for them print_obj(). Now I want to print them
> intersepersed by an element.
> If I print [x1, x2, x3] interspersed by the element 10:
> x1.print_obj() 10 x2.print_obj() 10 x3.print_obj()
> Now, the question is, what's the best way to do this?

Defining a print_obj() method is probably a bad idea.  What if you
want to print to a file for example?  Instead you can define a
__str__() method for your objects and then use the join() method of
strings like this:

print ' 10 '.join(str(x) for x in lst)



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