Sequence of empty lists

[Peter Hansen]

Diez B. Roggisch wrote:
> seq = [[] for i in xrange(10)]

And the reason you need that approach is given in the FAQ:
http://www.python.org/doc/faq/programming.html#how-do-i-create-a-multidimensional-list

It's a very good idea to read the entire FAQ as soon as you've gotten
past the very basic Python level, so that you can save yourself
and others a lot of time stumbling over the traditional problems
that everyone goes through.  You'll learn a lot of useful things
in the process.

-Peter