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

Groups > comp.lang.python > #95263 > unrolled thread

AttributeError

Started byLtc Hotspot <ltc.hotspot@gmail.com>
First post2015-08-11 17:01 -0700
Last post2015-08-12 23:16 +0100
Articles 6 on this page of 46 — 10 participants

Back to article view | Back to comp.lang.python

Contents

  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

Page 3 of 3 — ← Prev page 1 2 [3]

#95271

FromChris Angelico <rosuav@gmail.com>
Date2015-08-12 13:49 +1000
Message-ID<mailman.98.1439351399.3627.python-list@python.org>
In reply to#95263
On Wed, Aug 12, 2015 at 1:05 PM, Ltc Hotspot <ltc.hotspot@gmail.com> wrote:
>
> Check the code and the visualize execution of the code, available at
> http://tinyurl.com/p8tgd5h
>
> message reads: NameError: name 'collections' is not defined

I've no idea why you made this Frankenstein monster out of your
original code and my suggestion, because there's no way that's going
to work. Go back to the people who've helped you on the python-tutor
list, and *do what they have requested* in terms of showing code, not
top-posting, and so on.

ChrisA

[toc] | [prev] | [next] | [standalone]

#95280

FromDenis McMahon <denismfmcmahon@gmail.com>
Date2015-08-12 11:36 +0000
Message-ID<mqfb3k$8np$1@dont-email.me>
In reply to#95263
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

[toc] | [prev] | [next] | [standalone]

#95281

FromMRAB <python@mrabarnett.plus.com>
Date2015-08-12 16:09 +0100
Message-ID<mailman.108.1439392156.3627.python-list@python.org>
In reply to#95263
On 2015-08-12 04:05, Ltc Hotspot wrote:
> Chris,
>
> Check the code and the visualize execution of the code, available at
> http://tinyurl.com/p8tgd5h
>
> message reads: NameError: name 'collections' is not defined
>
You didn't import the module.

>
> Regards,
> Hal
>
> On Tue, Aug 11, 2015 at 5:49 PM, Chris Angelico <rosuav@gmail.com
> <mailto:rosuav@gmail.com>> wrote:
>
>     On Wed, Aug 12, 2015 at 10:43 AM, Ltc Hotspot <ltc.hotspot@gmail.com
>     <mailto: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 <mailto: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.
>

[toc] | [prev] | [next] | [standalone]

#95316

FromGene Heskett <gheskett@wdtv.com>
Date2015-08-12 17:25 -0400
Message-ID<mailman.139.1439414731.3627.python-list@python.org>
In reply to#95263
On Wednesday 12 August 2015 15:05:37 Ltc Hotspot wrote:

> >Have a look at assignment_10_2_v_06.py.
>
> What should I look at assignment_10_2_v_06.py.:
>
>
> handle = """From stephen.marquard@uct.ac.za Sat Jan  5 09:14:16 2008
> From louis@media.berkeley.edu Fri Jan  4 18:10:48 2008
> """.split("\n")
> # Snippet file data: mbox-short.txt
>
> count = dict()
> #fname = raw_input("Enter file name: ")# Add Snippet file
> #handle = open (fname, 'r')# Add Snippet file
> for line in handle:
>     if line.startswith("From "):
>         time = line.split() # Sort time
>
>         hours = line.split(":")[5] # Sort hours
>         line = line.rstrip()
>
>         count[hours] = count.get(hours, 0) + 1 # counter
>
> lst = [(val,key) for key,val in count.items()]
>
> print key, val
>
> On Wed, Aug 12, 2015 at 11:59 AM, MRAB <python@mrabarnett.plus.com> 
wrote:
> > On 2015-08-12 19:35, Ltc Hotspot wrote:
> >> Emile
> >>
> >> How do I define time in the revised code ?
> >
> > Have a look at assignment_10_2_v_06.py.
> >
> >> -------------------------------------------------------------------
> >>-------- Traceback Message reads:
> >> In [66]: %run assignment_10_2_v_07
> >>
> >> NameError
> >> Traceback (most recent call last)
> >> C:\Users\vm\Desktop\apps\docs\Python\week_10\assignment_10_2_v_07.p
> >>y in <module>
> >> ()
> >>        9 for line in handle:
> >>       10     if line.startswith("From "):
> >> ---> 11         for key, val in time.split()[5]:
> >>       12             for key, val in hours.split(':')[0]:
> >>       13                 count[hours] = count.get(hours, 0) + 1 #
> >> counter
> >>
> >> NameError: name 'time' is not defined
> >>
> >> -------------------------------------------------------------------
> >>--------
> >>
> >>
> >> In [67]: print time
> >> 0
> >>
> >> -------------------------------------------------------------------
> >>--------
> >>
> >> Revised Code reads:
> >> handle = """From stephen.marquard@uct.ac.za Sat Jan  5 09:14:16
> >> 2008
> >>
> >>> From louis@media.berkeley.edu Fri Jan  4 18:10:48 2008
> >>
> >> """.split("\n")
> >> # Snippet file data: mbox-short.txt
> >>
> >> count = dict()
> >> #fname = raw_input("Enter file name: ")# insert snippet file
> >> #handle = open (fname, 'r')# insert snippet file
> >> for line in handle:
> >>      if line.startswith("From "):
> >>          for key, val in time.split()[5]:
> >>              for key, val in hours.split(':')[0]:
> >>                  count[hours] = count.get(hours, 0) + 1 # counter
> >>
> >> lst = [(val,key) for key,val in count.items()]
> >> lst.sort(reverse=True)
> >>
> >> for key, val in lst[:12] :
> >>      print key, val
> >>
> >>
> >> -------------------------------------------------------------------
> >>-------- Regards,
> >> Hal
> >
> > I'm baffled as to why you now have a nested 'for' loop 3 levels
> > deep!
> >
> > --
> > https://mail.python.org/mailman/listinfo/python-list

After following this thread to late afternoon today, I would say that 
Denis's response was a bit strong and less than helpfull because the 
perceived insult drowns out the true meaning of his remark.

OTOH, _you_ are putting zero effort into understanding the error, 
something the others have encouraged, apparently several times now on at 
least 2 other venues.

This IS how one learns best, by seeing an error and taking an action that 
aleviates the error.  Handing the answer to you on a clean plate may fix 
the error, but your chances of understanding why it was fixed are 
perhaps 10% as good than the understanding in the future would be if you 
followed normal debugging proceedures and fixed it yourself.

If you aren't willing to put any effort into it yourself, then perhaps 
Denis does have the right idea.  Find another line of endeavor that 
_will_ pay the bills.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

[toc] | [prev] | [next] | [standalone]

#95320

FromLtc Hotspot <ltc.hotspot@gmail.com>
Date2015-08-12 15:02 -0700
Message-ID<mailman.143.1439416953.3627.python-list@python.org>
In reply to#95263
The problem here is that these are home work assignment and to code an
else word assignment would be in contradiction to the academic
curriculum.

Specifically, I want to deploy a quick and simply dic solution:

Revised code:
c = [0 for i in range(24)]
filename = raw_input("Enter file name: ")
f = open(filename,'r')
for l in f:
    h = int(l.strip().split()[X].split(':')[Y])
    c[h] = c[h] + 1
f.close()
for i in range(24):
    print '{:02d} {}'.format(i, c[i])
---------------------------------------------------------------------------
NameError
Traceback (most recent call last)
C:\Users\vm\Desktop\apps\docs\Python\week_10\assignment_10_2_v_10.py in <module>
()
      5 f = open(filename,'r')
      6 for l in f:
----> 7     h = int(l.strip().split()[X].split(':')[Y])
      8     c[h] = c[h] + 1
      9 f.close()

NameError: name 'X' is not defined

In [74]: print X
---------------------------------------------------------------------------
Print X:
NameError
Traceback (most recent call last)
<ipython-input-74-7510f249b93c> in <module>()
----> 1 print X

NameError: name 'X' is not defined

In [75]:

On Wed, Aug 12, 2015 at 2:25 PM, Gene Heskett <gheskett@wdtv.com> wrote:
> On Wednesday 12 August 2015 15:05:37 Ltc Hotspot wrote:
>
>> >Have a look at assignment_10_2_v_06.py.
>>
>> What should I look at assignment_10_2_v_06.py.:
>>
>>
>> handle = """From stephen.marquard@uct.ac.za Sat Jan  5 09:14:16 2008
>> From louis@media.berkeley.edu Fri Jan  4 18:10:48 2008
>> """.split("\n")
>> # Snippet file data: mbox-short.txt
>>
>> count = dict()
>> #fname = raw_input("Enter file name: ")# Add Snippet file
>> #handle = open (fname, 'r')# Add Snippet file
>> for line in handle:
>>     if line.startswith("From "):
>>         time = line.split() # Sort time
>>
>>         hours = line.split(":")[5] # Sort hours
>>         line = line.rstrip()
>>
>>         count[hours] = count.get(hours, 0) + 1 # counter
>>
>> lst = [(val,key) for key,val in count.items()]
>>
>> print key, val
>>
>> On Wed, Aug 12, 2015 at 11:59 AM, MRAB <python@mrabarnett.plus.com>
> wrote:
>> > On 2015-08-12 19:35, Ltc Hotspot wrote:
>> >> Emile
>> >>
>> >> How do I define time in the revised code ?
>> >
>> > Have a look at assignment_10_2_v_06.py.
>> >
>> >> -------------------------------------------------------------------
>> >>-------- Traceback Message reads:
>> >> In [66]: %run assignment_10_2_v_07
>> >>
>> >> NameError
>> >> Traceback (most recent call last)
>> >> C:\Users\vm\Desktop\apps\docs\Python\week_10\assignment_10_2_v_07.p
>> >>y in <module>
>> >> ()
>> >>        9 for line in handle:
>> >>       10     if line.startswith("From "):
>> >> ---> 11         for key, val in time.split()[5]:
>> >>       12             for key, val in hours.split(':')[0]:
>> >>       13                 count[hours] = count.get(hours, 0) + 1 #
>> >> counter
>> >>
>> >> NameError: name 'time' is not defined
>> >>
>> >> -------------------------------------------------------------------
>> >>--------
>> >>
>> >>
>> >> In [67]: print time
>> >> 0
>> >>
>> >> -------------------------------------------------------------------
>> >>--------
>> >>
>> >> Revised Code reads:
>> >> handle = """From stephen.marquard@uct.ac.za Sat Jan  5 09:14:16
>> >> 2008
>> >>
>> >>> From louis@media.berkeley.edu Fri Jan  4 18:10:48 2008
>> >>
>> >> """.split("\n")
>> >> # Snippet file data: mbox-short.txt
>> >>
>> >> count = dict()
>> >> #fname = raw_input("Enter file name: ")# insert snippet file
>> >> #handle = open (fname, 'r')# insert snippet file
>> >> for line in handle:
>> >>      if line.startswith("From "):
>> >>          for key, val in time.split()[5]:
>> >>              for key, val in hours.split(':')[0]:
>> >>                  count[hours] = count.get(hours, 0) + 1 # counter
>> >>
>> >> lst = [(val,key) for key,val in count.items()]
>> >> lst.sort(reverse=True)
>> >>
>> >> for key, val in lst[:12] :
>> >>      print key, val
>> >>
>> >>
>> >> -------------------------------------------------------------------
>> >>-------- Regards,
>> >> Hal
>> >
>> > I'm baffled as to why you now have a nested 'for' loop 3 levels
>> > deep!
>> >
>> > --
>> > https://mail.python.org/mailman/listinfo/python-list
>
> After following this thread to late afternoon today, I would say that
> Denis's response was a bit strong and less than helpfull because the
> perceived insult drowns out the true meaning of his remark.
>
> OTOH, _you_ are putting zero effort into understanding the error,
> something the others have encouraged, apparently several times now on at
> least 2 other venues.
>
> This IS how one learns best, by seeing an error and taking an action that
> aleviates the error.  Handing the answer to you on a clean plate may fix
> the error, but your chances of understanding why it was fixed are
> perhaps 10% as good than the understanding in the future would be if you
> followed normal debugging proceedures and fixed it yourself.
>
> If you aren't willing to put any effort into it yourself, then perhaps
> Denis does have the right idea.  Find another line of endeavor that
> _will_ pay the bills.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
> --
> https://mail.python.org/mailman/listinfo/python-list

[toc] | [prev] | [next] | [standalone]

#95321

FromMark Lawrence <breamoreboy@yahoo.co.uk>
Date2015-08-12 23:16 +0100
Message-ID<mailman.144.1439417812.3627.python-list@python.org>
In reply to#95263
On 12/08/2015 23:02, Ltc Hotspot wrote:

FOR GOD'S SAKE WILL YOU PLEASE STOP TOP POSTING AND TRIM DOWN YOUR 
REPLIES.  WHAT GRADE DO YOU EXPECT, A Z-?

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

[toc] | [prev] | [standalone]

Page 3 of 3 — ← Prev page 1 2 [3]

Back to top | Article view | comp.lang.python

csiph-web