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| References | <0baa3bd5-9f80-4d4e-9367-84e2a32d8c70@googlegroups.com> <55CA92BA.7070905@mrabarnett.plus.com> <CALa1VB7f1-4Jrp+FCXEY5oCES+epXzMLLNatB_uiiZ2X7=8pPw@mail.gmail.com> |
|---|---|
| Date | 2015-08-12 10:49 +1000 |
| Subject | Re: AttributeError |
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.92.1439340553.3627.python-list@python.org> (permalink) |
On Wed, Aug 12, 2015 at 10:43 AM, Ltc Hotspot <ltc.hotspot@gmail.com> wrote:
> Python can pull the hour from the 'From ' line by finding the time and then
> splitting the string a second time using a colon, i.e., From
> stephen.marquard@uct.ac.za Sat Jan 5 09:14:16 2008
>
> Finally, accumulated the counts for each hour, print out the counts, sorted
> by hour as shown below:
In that case, you want to sort the entire collection, not a single
key-value pair.
It seems to me you can do this fairly efficiently with collections.Counter.
import collections
with open(raw_input("Enter file name: ")) as f:
counts = collections.Counter(line.split()[5].rstrip() for line in
f if line.startswith("From "))
counts = counts.items()
counts.sort()
for hour, count in counts:
print hour, count
The most important part is getting items() and then sorting the whole thing.
ChrisA
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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
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