[Tutor] Prepend to a list?

[Liam Clarke]

Hi Jay, 

>>> x = [2,3,4,5,6,7,8]
>>> x.insert(0,1)
>>> print x
[1, 2, 3, 4, 5, 6, 7, 8]

>>> print x.insert.__doc__
L.insert(index, object) -- insert object before index

Or 

>>> a = [2,3,4,5,6,7,8]
>>> a.reverse()
>>> a.append(1)
>>> a.reverse()
>>> print a
[1, 2, 3, 4, 5, 6, 7, 8]

>>> print a.reverse.__doc__
L.reverse() -- reverse *IN PLACE*

the IN PLACE is important. It doesn't return a modified copy, it
modifies the original list, same as L.sort()

HTH


Liam Clarke




On Sat, 19 Mar 2005 20:52:16 -0500, Jay Loden <python at jayloden.com> wrote:
> How can I prepend something to a list? I thought that I could do
> list.prepend()  since you can do list.append() but apparently not.  Any way to
> add something to a list at the beginning, or do I just have to make a new
> list?
> 
> -Jay
> _______________________________________________
> Tutor maillist  -  Tutor at python.org
> http://mail.python.org/mailman/listinfo/tutor
> 


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