Hi, I am getting the following errorTypeError: sort() takes nokeyword arguments

[gaurav kashyap]

Hi all,
I am using python version 2.3.in a program ,
I have called the sort function.Wherein,
a.sort(reverse=True)
is giving the following error:

TypeError: sort() takes no keyword arguments.

It works in python 2.4,What can be the alternative in python 2.3

Thanks ,
Gaurav

[Aidan]

gaurav kashyap wrote:

Hi all,
I am using python version 2.3.in a program ,
I have called the sort function.Wherein,
a.sort(reverse=True)
is giving the following error:

TypeError: sort() takes no keyword arguments.

It works in python 2.4,What can be the alternative in python 2.3

Thanks ,
Gaurav

You could try:

>>a.sort()
a = a[::-1]

[Duncan Booth]

Aidan <aw****@gmail.comwrote:

gaurav kashyap wrote:

>Hi all,
I am using python version 2.3.in a program ,
I have called the sort function.Wherein,
a.sort(reverse=True)
is giving the following error:

TypeError: sort() takes no keyword arguments.

It works in python 2.4,What can be the alternative in python 2.3

Thanks ,
Gaurav

You could try:

>a.sort()
a = a[::-1]

You could, but you should also be aware that there is a subtle difference.
The 'reverse' keyword argument gives a stable reverse sort, sorting and
then reversing something is not stable. e.g.

>>data = [(1, 'zzz'), (1, 'abc'), (2, 'def'), (1, 'pqr'), (2, 'jkl')]
a = data[:]
a.sort(lambda p,q: cmp(p[0],q[0]), reverse=True)
a

[(2, 'def'), (2, 'jkl'), (1, 'zzz'), (1, 'abc'), (1, 'pqr')]

>>a = data[:]
a.sort(lambda p,q: cmp(p[0],q[0]))
a[::-1]

[(2, 'jkl'), (2, 'def'), (1, 'pqr'), (1, 'abc'), (1, 'zzz')]
--
Duncan Booth http://kupuguy.blogspot.com