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.gr...@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 :( :( :(
--
https://mail.python.org/mailman/listinfo/python-list
