In article bc70e108-f2ca-47b5-93d4-6911dfc3b...@q22g2000yqm.googlegroups.com,
=?UTF-8?B?zp3Or866zr/Pgg==?= nikos.the.gr...@gmail.com wrote:
After all () used to define tuples and [] usedd to define lists. Why
commas?
No, () does *not* define tuples, except for the empty tuple. The comma
Nik the Greek wrote:
Yes i will i just asked to know if i were to substitute what might be
the problem so to understand why i need the quoting.
Because if you use % to build a query string, the result must
be syntactically valid SQL. The values that you substitute
into the placeholders must
On 30 Αύγ, 11:11, Gregory Ewing greg.ew...@canterbury.ac.nz wrote:
Nik the Greek wrote:
Yes i will i just asked to know if i were to substitute what might be
the problem so to understand why i need the quoting.
Because if you use % to build a query string, the result must
be syntactically
Nik the Greek wrote:
cursor.execute(''' SELECT hits FROM counters WHERE page = %s and
date = %s and host = %s ''' , a_tuple )
and
cursor.execute(''' SELECT hits FROM counters WHERE page = %s and
date = %s and host = %s ''' , (a_tuple) )
are both syntactically correct right?
buw what about
On 30/08/2010 17:09, Nik the Greek wrote:
On 30 Αύγ, 11:11, Gregory Ewinggreg.ew...@canterbury.ac.nz wrote:
Nik the Greek wrote:
Yes i will i just asked to know if i were to substitute what might be
the problem so to understand why i need the quoting.
Because if you use % to build a query
On 30/08/2010 17:34, Alexander Kapps wrote:
Nik the Greek wrote:
cursor.execute(''' SELECT hits FROM counters WHERE page = %s and
date = %s and host = %s ''' , a_tuple )
and
cursor.execute(''' SELECT hits FROM counters WHERE page = %s and
date = %s and host = %s ''' , (a_tuple) )
are both
On 8/30/2010 1:11 AM, Gregory Ewing wrote:
Nik the Greek wrote:
Yes i will i just asked to know if i were to substitute what might be
the problem so to understand why i need the quoting.
Because if you use % to build a query string, the result must
be syntactically valid SQL. The values that
On 29/08/2010 06:13, Νίκος wrote:
On 28 Αύγ, 23:12, MRABpyt...@mrabarnett.plus.com wrote:
On 28/08/2010 20:51, Νίκος wrote:
On 28 Αύγ, 22:35, MRABpyt...@mrabarnett.plus.comwrote:
When there's more than one value you provide a tuple. It's makes sense
from the point of view of
On 29 Αύγ, 21:34, MRAB pyt...@mrabarnett.plus.com wrote:
It likes the values to be in a tuple. If there's one value, that's a
1-tuple: (page, ).
I noticed that if we are dealing with just a single value 'page' will
do, no need to tuple for 1-value.
it handles fine as a string.
On 30/08/2010 02:38, Νίκος wrote:
On 29 Αύγ, 21:34, MRABpyt...@mrabarnett.plus.com wrote:
It likes the values to be in a tuple. If there's one value, that's a
1-tuple: (page, ).
I noticed that if we are dealing with just a single value 'page' will
do, no need to tuple for 1-value.
it
On 30 Αύγ, 05:04, MRAB pyt...@mrabarnett.plus.com wrote:
when iam trying to pass a tuple to the execute methos should i pass it
like this?
cursor.execute(''' SELECT hits FROM counters WHERE page = %s and
date = %s and host = %s ''' % (page, date, host) )
or like
tuple = (page, host, date)
On 30/08/2010 03:33, Nik the Greek wrote:
On 30 Αύγ, 05:04, MRABpyt...@mrabarnett.plus.com wrote:
when iam trying to pass a tuple to the execute methos should i pass it
like this?
cursor.execute(''' SELECT hits FROM counters WHERE page = %s and
date = %s and host = %s ''' % (page, date, host)
On 30 Αύγ, 05:48, MRAB pyt...@mrabarnett.plus.com wrote:
On 30/08/2010 03:33, Nik the Greek wrote:
On 30 Αύγ, 05:04, MRABpyt...@mrabarnett.plus.com wrote:
when iam trying to pass a tuple to the execute methos should i pass it
like this?
cursor.execute(''' SELECT hits FROM
On 20 Αύγ, 09:04, Nik Gr nikos.the.gr...@gmail.com wrote:
With regard to the % operator, it considers the string on the left to
be a format string with multiple %blah things in it to replace. The
thing on the right is a sequence of items to place into the format
string.
Can you please clarify
On 28/08/2010 20:10, Νίκος wrote:
On 20 Αύγ, 09:04, Nik Grnikos.the.gr...@gmail.com wrote:
With regard to the % operator, it considers the string on the left to
be a format string with multiple %blah things in it to replace. The
thing on the right is a sequence of items to place into the
On 28 Αύγ, 22:35, MRAB pyt...@mrabarnett.plus.com wrote:
On 28/08/2010 20:10, Νίκος wrote: On 20 Αύγ, 09:04, Nik
Grnikos.the.gr...@gmail.com wrote:
With regard to the % operator, it considers the string on the left to
be a format string with multiple %blah things in it to replace. The
On 28 Αύγ, 22:35, MRAB pyt...@mrabarnett.plus.com wrote:
When there's more than one value you provide a tuple. It's makes sense
from the point of view of consistency that you also provide a tuple when
there's only one value.
Can you write something that make use of more than one value?
2010/8/29 Νίκος nikos.the.gr...@gmail.com:
On 28 Αύγ, 22:35, MRAB pyt...@mrabarnett.plus.com wrote:
When there's more than one value you provide a tuple. It's makes sense
from the point of view of consistency that you also provide a tuple when
there's only one value.
Can you write something
On 28/08/2010 20:48, Νίκος wrote:
On 28 Αύγ, 22:35, MRABpyt...@mrabarnett.plus.com wrote:
On 28/08/2010 20:10, Νίκος wrote: On 20 Αύγ, 09:04, Nik
Grnikos.the.gr...@gmail.comwrote:
With regard to the % operator, it considers the string on the left to
be a format string with multiple
On 28/08/2010 20:51, Νίκος wrote:
On 28 Αύγ, 22:35, MRABpyt...@mrabarnett.plus.com wrote:
When there's more than one value you provide a tuple. It's makes sense
from the point of view of consistency that you also provide a tuple when
there's only one value.
Can you write something that make
On 28 Αύγ, 23:12, MRAB pyt...@mrabarnett.plus.com wrote:
On 28/08/2010 20:51, Νίκος wrote:
On 28 Αύγ, 22:35, MRABpyt...@mrabarnett.plus.com wrote:
When there's more than one value you provide a tuple. It's makes sense
from the point of view of consistency that you also provide a
In message
b3d92d13-b484-4188-8665-2b5c7da15...@q22g2000yqm.googlegroups.com, Νίκος
wrote:
I would expect that:
(nikos) is a single element tuple.
Then how would you do a simple parenthesized expression?
--
http://mail.python.org/mailman/listinfo/python-list
Στις 20/8/2010 8:22 πμ, ο/η Cameron Simpson έγραψε:
[...snip...]
| Why does the page variable which is actually a string needs to be a
| tuple or a list and not just as a string which is what it actually
| is?
With regard to the % operator, it considers the string on the left to
be a format
I would expect that:
nikos is a string, while,
(nikos) is a single element tuple.
[nikos] is a single element list.
That way we wouldn't be needing comma seperators.
I just don't like it when nikos and (nikos) is the same thing
exactly. Parentheses are to be used to define a tuple and square
On 18 Αύγ, 12:50, Cameron Simpson c...@zip.com.au wrote:
(nikos,) is a single element tuple.
[nikos] is a single element list.
[nikos,] is also a single element list, just written like the tuple.
It makes more sense if i:
nikos is just a string
(nikos) is a single element tuple
[nikos] is
On 08/19/10 02:10, Νίκος wrote:
(nikos,) is a single element tuple.
[nikos] is a single element list.
[nikos,] is also a single element list, just written like the tuple.
It makes more sense if i:
nikos is just a string
(nikos) is a single element tuple
[nikos] is also a single element list
Hi Νίκος,
On 2010-08-19 09:10, Νίκος wrote:
On 18 Αύγ, 12:50, Cameron Simpson c...@zip.com.au wrote:
(nikos,) is a single element tuple.
[nikos] is a single element list.
[nikos,] is also a single element list, just written like the tuple.
It makes more sense if i:
nikos is just a
Στις 19/8/2010 2:32 μμ, ο/η Tim Chase έγραψε:
So Python needs a way to express that you *explicitly* mean this is
one of those rare one-element tuples, not an order of operations
prioritization:
(1,) + (2,)
to return (1,2)
Yes i can see the difference now!! I just had to look at the big
Στις 19/8/2010 2:32 μμ, ο/η Tim Chase έγραψε:
(1,) + (2,)
to return (1,2)
This is actually joining two single element tuples (1,) and (2, ) to a
new bigger tuple of two elements, correct?
--
http://mail.python.org/mailman/listinfo/python-list
On 08/19/10 10:42, Nik Gr wrote:
You can also prefix any of them with r such as
file_path = rc:\path\to\file.txt
file_path = r'c:\path\to\file.txt
file_path = rc:\path\to\file.txt
file_path = r'''c:\path\to\file.txt'''
'r' is to avoid escaping backslashes only or other special
Στις 19/8/2010 6:58 μμ, ο/η Tim Chase έγραψε:
It can be written as a non-3-quote string, you just have to escape the
inner quotes (single double) and the backslash to be seen:
name = 'My name is Nikos and I\'m from Thessaloniki\\Greece'
name = My name is \Nikos\ and I'm from
Nik Gr wrote:
[snip]
Why does the page variable which is actually a string needs to be a
tuple or a list and not just as a string which is what it actually is?
I have a strong desire to use it like this:
cursor.execute( '''SELECT hits FROM counters WHERE page = %s''' , page )
opposed to
On 8/18/2010 2:50 AM, Cameron Simpson wrote:
On 18Aug2010 12:07, Nik Grnikos.the.gr...@gmail.com wrote:
| Στις 18/8/2010 7:31 πμ, ο/η Cameron Simpson έγραψε:
|On 17Aug2010 20:15, Νίκοςnikos.the.gr...@gmail.com wrote:
|| ===
|| cursor.execute( ''' SELECT host,
On 19Aug2010 21:50, Nik Gr nikos.the.gr...@gmail.com wrote:
| Στις 19/8/2010 6:58 μμ, ο/η Tim Chase έγραψε:
| It can be written as a non-3-quote string, you just have to escape
| the inner quotes (single double) and the backslash to be seen:
|
| name = 'My name is Nikos and I\'m from
Στις 18/8/2010 7:31 πμ, ο/η Cameron Simpson έγραψε:
On 17Aug2010 20:15, Νίκοςnikos.the.gr...@gmail.com wrote:
| ===
| cursor.execute( ''' SELECT host, hits, date FROM visitors WHERE page =
| '%s' ORDER BY date DESC ''' % (page) )
| ===
|
On 18Aug2010 12:07, Nik Gr nikos.the.gr...@gmail.com wrote:
| Στις 18/8/2010 7:31 πμ, ο/η Cameron Simpson έγραψε:
| On 17Aug2010 20:15, Νίκοςnikos.the.gr...@gmail.com wrote:
| | ===
| | cursor.execute( ''' SELECT host, hits, date FROM visitors WHERE page =
| | '%s'
On 08/18/10 04:50, Cameron Simpson wrote:
(nikos,) is a single element tuple.
[nikos] is a single element list.
[nikos,] is also a single element list, just written like the tuple.
You don't see the [nikos,] form very often because [nikos] is not
ambiguous.
I most frequently see/use the
===
cursor.execute( ''' SELECT host, hits, date FROM visitors WHERE page =
'%s' ORDER BY date DESC ''' % (page) )
===
Someone told me NOT to do string substitution (%) on SQL statements
and to let MySQLdb do it
for me, with proper escaping
2010/8/18 Νίκος nikos.the.gr...@gmail.com
a) I wanted to ask what is proper escaping mean and
Proper escaping means that value is wrapped in quotes properly, and quotes
and backslashes (or any other special to RDBMS symbol) are escaped with
backslashes.
why after variable page syntax has a
On 17Aug2010 20:15, Νίκος nikos.the.gr...@gmail.com wrote:
| ===
| cursor.execute( ''' SELECT host, hits, date FROM visitors WHERE page =
| '%s' ORDER BY date DESC ''' % (page) )
| ===
|
| Someone told me NOT to do string substitution (%) on
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