[Tutor] <mutable>.__mul__
Alan Gauld
alan.gauld at btinternet.com
Sat Aug 3 18:41:01 CEST 2013
On 03/08/13 15:50, Albert-Jan Roskam wrote:
> Suppose I initialize a list (letÅ› say it's a record) to e.g all zeroes,
> or all sixes. Suppose, further, that I use "*" for this
> (which is a nice an clean way).
Its only nice if you use it at the top level with an immutable value,
otherwise , as you can see, it quickly becomes not nice and not clean.
Use a list comprehension instead
y = [[6] for i in range(4)]
As the name suggests list comprehensions are designed for building lists.
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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