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Groups > comp.lang.python > #58510
| From | Nick the Gr33k <nikos.gr33k@gmail.com> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: How to add a current string into an already existing list |
| Date | 2013-11-05 18:20 +0200 |
| Organization | A noiseless patient Spider |
| Message-ID | <l5b5rj$if5$1@dont-email.me> (permalink) |
| References | (12 earlier) <l5ae3r$aie$1@dont-email.me> <l5afbl$ft4$1@dont-email.me> <mailman.2047.1383646833.18130.python-list@python.org> <l5ahib$rel$1@dont-email.me> <mailman.2051.1383650198.18130.python-list@python.org> |
Στις 5/11/2013 1:16 μμ, ο/η Dave Angel έγραψε:
> On Tue, 05 Nov 2013 12:33:49 +0200, Nick the Gr33k
> <nikos.gr33k@gmail.com> wrote:
>> Στις 5/11/2013 12:20 μμ, ο/η Antoon Pardon έγραψε:
>> > Did you read the documentation of fetchone?
>
>
>
>
>> fetchone is like fetchall except from the fact that the former
> returned
>> a row of data while the latter returned a list of rows of data.
>
> That's not the only difference. See the word None there in one of the
> descriptions?
>
>> TypeError: 'NoneType' object is not iterable
>
> Examine the statement it's complaining about. It's obvious which item
> it's trying to iterate over.
>
--
So perhaps 'data' coudlnt retrive any values from the database that why
it cannot unpack them to the 3 variables?
if so i altered the code to:
# fetch those columns that act as lists but are stored as strings
cur.execute('''SELECT refs, visits, downloads FROM visitors WHERE
counterID = %s and host = %s''', (cID, host) )
data = cur.fetchone()
ref = visit = download = []
if cur.rowcount:
# unpack data into variables
(ref, visit, download) = data
# retrieve long strings and convert them into lists respectively
refs = ref.split()
visits = visit.split()
downloads = download.split()
else:
# initiate these values
ref = ref
visit = lastvisit
download = ''
# add current strings to each list respectively
refs.append( ref )
visits.append( visit )
downloads.append( download )
# convert lists back to longstrings
refs = ', '.join( refs )
visits = ', '.join( visits )
downloads = ', '.join( downloads )
# save this visit as an entry into database
cur.execute('''INSERT INTO visitors (counterID, refs, host, city,
useros, browser, visits, hits = hits + 1, downloads) VALUES (%s, %s, %s,
%s, %s, %s, %s, %s, %s)''',
(cID, refs, host, city, useros, browser, visits, hits, downloads) )
=======================
but this also fail to run :( :( :(
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How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-02 13:58 +0200
Re: How to add a current string into an already existing list Andreas Perstinger <andipersti@gmail.com> - 2013-11-02 14:03 +0100
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-02 18:25 +0200
Re: How to add a current string into an already existing list Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-02 16:43 +0000
Re: How to add a current string into an already existing list rusi <rustompmody@gmail.com> - 2013-11-02 10:40 -0700
Re: How to add a current string into an already existing list Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-02 18:28 +0000
Re: How to add a current string into an already existing list Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2013-11-02 20:30 +0200
Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-03 08:50 +1100
Re: How to add a current string into an already existing list Roy Smith <roy@panix.com> - 2013-11-02 18:00 -0400
Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-03 09:13 +1100
Re: How to add a current string into an already existing list Walter Hurry <walterhurry@lavabit.com> - 2013-11-02 21:12 +0000
Re: How to add a current string into an already existing list Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-11-03 19:06 +1300
Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-03 10:56 +0100
Re: How to add a current string into an already existing list Roy Smith <roy@panix.com> - 2013-11-03 07:16 -0500
Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-04 00:13 +1100
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-04 19:03 +0200
Re: How to add a current string into an already existing list Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-04 22:46 +0000
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 08:54 +0200
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 10:07 +0200
Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-05 19:21 +1100
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 10:53 +0200
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 10:54 +0200
Re: How to add a current string into an already existing list "M.F." <morefool@gmail.com> - 2013-11-05 17:10 +0800
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 11:34 +0200
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 11:56 +0200
Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 11:20 +0100
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 12:33 +0200
Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 11:59 +0100
Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 05:16 -0600
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 18:20 +0200
Re: How to add a current string into an already existing list Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-11-05 11:49 +0000
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 14:25 +0200
Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 13:42 +0100
Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 07:15 -0600
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 17:39 +0200
Re: How to add a current string into an already existing list Tim Chase <python.list@tim.thechases.com> - 2013-11-05 09:45 -0600
Re: How to add a current string into an already existing list Nick the Gr33k <nikos.gr33k@gmail.com> - 2013-11-05 17:50 +0200
Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 23:36 -0600
Re: How to add a current string into an already existing list Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-06 08:53 +0000
Re: How to add a current string into an already existing list Joel Goldstick <joel.goldstick@gmail.com> - 2013-11-05 10:44 -0500
Re: How to add a current string into an already existing list Dave Angel <davea@davea.name> - 2013-11-05 05:00 -0600
Re: How to add a current string into an already existing list Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-05 17:48 +0000
Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 11:07 +0100
Re: How to add a current string into an already existing list Larry Hudson <orgnut@yahoo.com> - 2013-11-05 20:52 -0800
Re: How to add a current string into an already existing list Chris Angelico <rosuav@gmail.com> - 2013-11-05 21:01 +1100
Re: How to add a current string into an already existing list Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-05 09:39 +0100
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