Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #95280

Re: AttributeError

From Denis McMahon <denismfmcmahon@gmail.com>
Newsgroups comp.lang.python
Subject Re: AttributeError
Date 2015-08-12 11:36 +0000
Organization A noiseless patient Spider
Message-ID <mqfb3k$8np$1@dont-email.me> (permalink)
References <0baa3bd5-9f80-4d4e-9367-84e2a32d8c70@googlegroups.com>

Show all headers | View raw


On Tue, 11 Aug 2015 17:01:24 -0700, Ltc Hotspot wrote:

> What is the list equivalent to line 12: ncount.sort(reverse=True)
> 
> count = dict()
> fname = raw_input("Enter file name: ")#
> handle = open (fname, 'r')#
> for line in handle:
>     if line.startswith("From "):
>         address = line.split()[5]
>         line = line.rstrip()
>         count[address] = count.get(address, 0) + 1

At this point, count seems to be a dictionary of address: count of lines

> for key,val in count.items():
>     ncount = (key,val) ncount.sort(reverse=True) print key,val

ncount is a single key-value pair. Why are you trying to sort ncount?

Do you want results ordered by count?

First, change your dictionary into a list of tuples:

ncount = [(a,c) for a,c in count.items()]

Then sort ncount on the second field of the tuple:

ncount.sort(key = lambda x: x[1], reverse=True)

print ncount

-- 
Denis McMahon, denismfmcmahon@gmail.com

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-11 17:01 -0700
  Re: AttributeError leo kirotawa <kirotawa@gmail.com> - 2015-08-11 21:16 -0300
  Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 01:26 +0100
  Re: AttributeError Chris Angelico <rosuav@gmail.com> - 2015-08-12 10:49 +1000
  Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 01:58 +0100
    Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-11 22:03 -0700
      Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 16:12 +0100
      Re: AttributeError Denis McMahon <denismfmcmahon@gmail.com> - 2015-08-12 15:50 +0000
        Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 09:29 -0700
          Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 17:45 +0100
          Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 09:57 -0700
          Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 18:24 +0100
          RE: AttributeError "Clayton Kirkwood" <crk@godblessthe.us> - 2015-08-12 10:31 -0700
          Re: AttributeError Emile van Sebille <emile@fenx.com> - 2015-08-12 10:37 -0700
            Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 11:35 -0700
              Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 19:59 +0100
              Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 12:05 -0700
                Re: AttributeError Denis McMahon <denismfmcmahon@gmail.com> - 2015-08-12 20:38 +0000
                RE: AttributeError "Clayton Kirkwood" <crk@godblessthe.us> - 2015-08-12 14:15 -0700
                Re: AttributeError Emile van Sebille <emile@fenx.com> - 2015-08-12 14:32 -0700
                Re: AttributeError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-08-12 22:45 +0100
                Re: AttributeError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-08-12 22:51 +0100
                Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 14:04 -0700
                Re: AttributeError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-08-13 10:37 +0100
                Re: AttributeError Ben Finney <ben+python@benfinney.id.au> - 2015-08-13 21:08 +1000
              Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 21:04 +0100
              Re: AttributeError Denis McMahon <denismfmcmahon@gmail.com> - 2015-08-12 21:16 +0000
                Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 23:35 +0100
                Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 16:05 -0700
                Re: AttributeError Emile van Sebille <emile@fenx.com> - 2015-08-12 16:15 -0700
                Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-13 00:16 +0100
                Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 16:46 -0700
                Re: AttributeError Denis McMahon <denismfmcmahon@gmail.com> - 2015-08-13 09:15 +0000
                Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-13 02:41 -0700
                Re: AttributeError Denis McMahon <denismfmcmahon@gmail.com> - 2015-08-13 11:06 +0000
                Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-13 00:56 +0100
          Re: AttributeError Denis McMahon <denismfmcmahon@gmail.com> - 2015-08-12 20:28 +0000
            Re: AttributeError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-08-12 21:58 +0100
  Re: AttributeError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-08-12 03:46 +0100
  Re: AttributeError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-08-12 04:32 +0100
  Re: AttributeError Chris Angelico <rosuav@gmail.com> - 2015-08-12 13:49 +1000
  Re: AttributeError Denis McMahon <denismfmcmahon@gmail.com> - 2015-08-12 11:36 +0000
  Re: AttributeError MRAB <python@mrabarnett.plus.com> - 2015-08-12 16:09 +0100
  Re: AttributeError Gene Heskett <gheskett@wdtv.com> - 2015-08-12 17:25 -0400
  Re: AttributeError Ltc Hotspot <ltc.hotspot@gmail.com> - 2015-08-12 15:02 -0700
  Re: AttributeError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-08-12 23:16 +0100

csiph-web