473,322 Members | 1,718 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,322 software developers and data experts.

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

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

Oct 17 '08 #1
2 2524
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]
Oct 17 '08 #2
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
Oct 17 '08 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
by: Paul MG | last post by:
Hi Is there a simple general way of getting the keys out of a map? Or a vector of pairs? My problem seems to be that the pair<> type returned by iterating through either has no methods to...
20
by: Xah Lee | last post by:
Sort a List Xah Lee, 200510 In this page, we show how to sort a list in Python & Perl and also discuss some math of sort. To sort a list in Python, use the “sort” method. For example: ...
3
by: winkatl1213 | last post by:
Hello, I am working with comtypes to interface Microsoft's DirectShow library. First, I found a Type Library on the internet that was created for accessing DirectShow from .NET. It seems that...
7
by: mooon33358 | last post by:
I have a little problem with implementing a recursive merge sort I have to use a function mergesort that takes 3 arguments - an array, its size, and an help array(i.e mergesort(int array, int...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
0
by: ArrayDB | last post by:
The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
1
by: PapaRatzi | last post by:
Hello, I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
1
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
1
by: Shllpp 09 | last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome former...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.