From andy47 at halfcooked.com  Mon Aug  8 06:38:07 2005
From: andy47 at halfcooked.com (Andy Todd)
Date: Mon, 08 Aug 2005 14:38:07 +1000
Subject: [DB-SIG] PyGreSQL (pgdb) Problem
In-Reply-To: <669261440507271735259be809@mail.gmail.com>
References: <669261440507271735259be809@mail.gmail.com>
Message-ID: <42F6E1AF.7090409@halfcooked.com>

Don Parris wrote:
> Greetings,
> 
> I'm running SUSE Linux 9.2, Python 2.3.4.  I'm new to
> Python/programming.  I basically installed most of the DVD when I
> installed SUSE last Fall.  Things *should* be working properly, but...
> 
> What originally started as a MySQL project is now using Postgres for
> the larger feature set.  Instead of importing MySQLdb, I now use the
> PyGreSQL pgdb module.  When attempting to load the pgdb module for use
> in my script, I get this traceback (same when I try it at the
> command-line):
> 
> 
>>>>pgdb.connect('localhost:chaddb_a_test:donp:d1o1l2l4')
> 
> Traceback (most recent call last):
>  File "<stdin>", line 1, in ?
> NameError: name 'pgdb' is not defined
> 
>>>>import pgdb
> 
> Traceback (most recent call last):
>  File "<stdin>", line 1, in ?
>  File "/usr/lib/python2.3/site-packages/pgdb.py", line 65, in ?
>    except ImportError: import DateTime
> ImportError: No module named DateTime
> 
> 
> In the pgdb module, I found this (which matches with the traceback):
> # Marc-Andre is changing where DateTime goes.  This handles it either way.
> try: from mx import DateTime
> except ImportError: import DateTime
> 
> I have spent a fair amount of time searching the archives for this
> issue, but have thus far turned up nothing useful.  I have no module
> "mx" that I can find in ../python2.3/lib (or other dirs.  Should I
> modify the file to use datetime.so instead?  I'm not certain of the
> implications of that, but it doesn't seem like the correct move.  I
> greatly appreciate your help.
> 
> Don

Don,

 From the documentation[1] it looks like pgdb requires the mxDateTime 
module[2] to work properly. You'll need to go to the URL[2], download a 
copy in the appropriate format and install it on your system.

[1] http://www.druid.net/pygresql/README.txt
[2] http://www.egenix.com/files/python/mxDateTime.html

Regards,
Andy
-- 
--------------------------------------------------------------------------------
 From the desk of Andrew J Todd esq - http://www.halfcooked.com/


From gnumathetes at gmail.com  Mon Aug  8 21:40:58 2005
From: gnumathetes at gmail.com (Don Parris)
Date: Mon, 8 Aug 2005 15:40:58 -0400
Subject: [DB-SIG] PyGreSQL (pgdb) Problem
In-Reply-To: <42F6E1AF.7090409@halfcooked.com>
References: <669261440507271735259be809@mail.gmail.com>
	<42F6E1AF.7090409@halfcooked.com>
Message-ID: <66926144050808124042f9a174@mail.gmail.com>

On 8/8/05, Andy Todd <andy47 at halfcooked.com> wrote:
> Don Parris wrote:

<snip>
> 
> Don,
> 
>  From the documentation[1] it looks like pgdb requires the mxDateTime
> module[2] to work properly. You'll need to go to the URL[2], download a
> copy in the appropriate format and install it on your system.
> 
> [1] http://www.druid.net/pygresql/README.txt
> [2] http://www.egenix.com/files/python/mxDateTime.html
> 
> Regards,
> Andy
> --
> --------------------------------------------------------------------------------

Yeah, I've got the Egenix package installed now.  I ran into a bit of
trouble getting connected - most likely my own inexperience with the
syntax or something.  Pygresql is a little different from MySQLdb.  I
haven't had time to fiddle with the workings of pgdb to see if I can
get it working on my own, as I've been working on two other projects
the past couple of weeks.  If I can't figure it out when I get back to
it, I'll post further questions on the list.

Thanks everyone for your help thus far,
Don
-- 
DC Parris GNU Evangelist
http://matheteuo.org/
gnumathetes at gmail.com
"Hey man, whatever pickles your list!"

From brett.chadwick at gcserv.com  Tue Aug  9 23:08:25 2005
From: brett.chadwick at gcserv.com (Brett Chadwick)
Date: Tue, 9 Aug 2005 16:08:25 -0500
Subject: [DB-SIG] MySQL Access
Message-ID: <59484F3FC6AE1E498326EBA04E551BF5022CAC3B@email.gcserv.com>

I am attempting to access a MySQL server through a graphical python program I have writing. 

I have successfully made a connection to the database which runs on a Linux server, however I cannot find any syntax/command examples which relate to using the built in _mysql module of python. 

I believe if someone could give me a simple example of how to obtain a cursor and write data to a specific table/column and retrieve information from this. I can elaborate and finish this program.  

Thank you for any help you can provide with this, I know it is relatively simple.



Thanks,
Ex - 3016
Brett Chadwick
VO Administrator
GC Services
brett.chadwick at gcserv.com


From farcepest at gmail.com  Wed Aug 10 15:51:07 2005
From: farcepest at gmail.com (Andy Dustman)
Date: Wed, 10 Aug 2005 09:51:07 -0400
Subject: [DB-SIG] MySQL Access
In-Reply-To: <59484F3FC6AE1E498326EBA04E551BF5022CAC3B@email.gcserv.com>
References: <59484F3FC6AE1E498326EBA04E551BF5022CAC3B@email.gcserv.com>
Message-ID: <9826f38005081006514ec8718d@mail.gmail.com>

On 8/9/05, Brett Chadwick <brett.chadwick at gcserv.com> wrote:
> I am attempting to access a MySQL server through a graphical python program I have writing.
> 
> I have successfully made a connection to the database which runs on a Linux server, however I cannot find any syntax/command examples which relate to using the built in _mysql module of python.
> 
> I believe if someone could give me a simple example of how to obtain a cursor and write data to a specific table/column and retrieve information from this. I can elaborate and finish this program.
> 
> Thank you for any help you can provide with this, I know it is relatively simple.

You're not supposed to use _mysql directly. Use MySQLdb instead. Read
the user's guide and PEP-249, and use the built-in documentation as
reference, i.e. pydoc MySQLdb or help('MySQLdb') in the interpreter.
-- 
Computer interfaces should never be made of meat.
http://www.terrybisson.com/meat.html

From brett.chadwick at gcserv.com  Wed Aug 10 23:50:33 2005
From: brett.chadwick at gcserv.com (Brett Chadwick)
Date: Wed, 10 Aug 2005 16:50:33 -0500
Subject: [DB-SIG] MySQL Access UPDATE
Message-ID: <59484F3FC6AE1E498326EBA04E551BF550D661@email.gcserv.com>

All,
This is the current code I am trying to use, it is modeled after some examples I have seen. If someone can provide a better example or way to access the MySQL server and pull or push data to a database on the server that would be appreciated.


##Database name is Test, Table name is Test1, feild is name,Fred, and PKID##

def sqlconnect():
  
        import _mysql
        import MySQLdb
        db=_mysql.connect(host="10.15.10.201",user="bjchadwick",
                  passwd="checkthis",db="test")
        db.query("""SELECT * FROM Test1 WHERE name""")
        print "Connected"

sqlconnect()

def  data():
    class Table:
        def __init__(self, db, test):
            self.db = db
            self.name = Test1
            self.dbc = self.db.cursor()
        def __getitem__(self, item):
            self.dbc.execute("SELECT * FROM Test1" %
                (self.name, item))
            return self.dbc.fetchnone()

        for i in xrange(80, 100):
            print "Data %s: %s" (i, Test1[i])
            
data()



Thanks,
Ex - 3016
Brett Chadwick
VO Administrator
GC Services
brett.chadwick at gcserv.com


-----Original Message-----
From: db-sig-bounces at python.org [mailto:db-sig-bounces at python.org]On
Behalf Of db-sig-request at python.org
Sent: Wednesday, August 10, 2005 3:00 AM
To: db-sig at python.org
Subject: DB-SIG Digest, Vol 29, Issue 4


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	db-sig at python.org

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From chris at cogdon.org  Thu Aug 11 00:10:27 2005
From: chris at cogdon.org (Chris Cogdon)
Date: Wed, 10 Aug 2005 15:10:27 -0700
Subject: [DB-SIG] MySQL Access UPDATE
In-Reply-To: <59484F3FC6AE1E498326EBA04E551BF550D661@email.gcserv.com>
References: <59484F3FC6AE1E498326EBA04E551BF550D661@email.gcserv.com>
Message-ID: <982de8d50b5304bcfb532d57165e3a6c@cogdon.org>


On Aug 10, 2005, at 14:50, Brett Chadwick wrote:

> All,
> This is the current code I am trying to use, it is modeled after some 
> examples I have seen. If someone can provide a better example or way 
> to access the MySQL server and pull or push data to a database on the 
> server that would be appreciated.

Actually, by the look of things, just use MySQLdb.connect rather than 
_mysql.connect. Don't use _mysql directly.

There's no need to do the 'test' query on the database. If you DO need 
to do that, use the standard 'get a cursor' thing like you would do 
with a normal query.


-- 
    ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
     . . `; -._    )-;-,_`)
    (v_,)'  _  )`-.\  ``-'
   _.- _..-_/ / ((.'
((,.-'   ((,/   fL


From catherine.devlin at gmail.com  Thu Aug 11 20:23:28 2005
From: catherine.devlin at gmail.com (Catherine Devlin)
Date: Thu, 11 Aug 2005 14:23:28 -0400
Subject: [DB-SIG] introduction for Oracle-based newbies; evangelism
Message-ID: <6523e39a05081111234ee7900d@mail.gmail.com>

Hi, SIG!  ("Hi, Catherine!")

I'm basically an Oracle DBA who uses Python on the side, and I'm tired
of seeing blank stares at Oracle meetings when I mention my Python
passion.  So I wrote up an article designed to smooth the entry to
Python for Oracle people, addressing the things I think are likely to
confuse an Oracle-based newbie.  Or the things that confused me, at
least.

The article is at http://www.ioug.org/python.pdf

If only I could have read it on my way into Python, it would have made
things quite a bit easier for me, time-travel paradoxes
notwithstanding.

Anyway, I had hoped to publish it in the IOUG's quarterly magazine,
but they opted simply to web-publish it at their site.  I'm afraid,
for evangelism purposes, it's pretty obscure right now.  Pushing the
evangelism metaphor a little further, my lamp is not at all on a
lampstand.

I'm bringing it up here for two reasons.

1) If you personally want to help Oracle people to a friendly
introduction, please gratify my ego and point them to it.
2) Ideas on where to go with it next.  IOUG told me I still have
rights to try to publish or post it elsewhere, but I don't really know
where.  Thoughts?

Thanks!
- Catherine
http://catherinedevlin.blogspot.com/

From mal at egenix.com  Thu Aug 11 20:44:00 2005
From: mal at egenix.com (M.-A. Lemburg)
Date: Thu, 11 Aug 2005 20:44:00 +0200
Subject: [DB-SIG] introduction for Oracle-based newbies; evangelism
In-Reply-To: <6523e39a05081111234ee7900d@mail.gmail.com>
References: <6523e39a05081111234ee7900d@mail.gmail.com>
Message-ID: <42FB9C70.1090009@egenix.com>

Catherine Devlin wrote:
> Hi, SIG!  ("Hi, Catherine!")
> 
> I'm basically an Oracle DBA who uses Python on the side, and I'm tired
> of seeing blank stares at Oracle meetings when I mention my Python
> passion.  So I wrote up an article designed to smooth the entry to
> Python for Oracle people, addressing the things I think are likely to
> confuse an Oracle-based newbie.  Or the things that confused me, at
> least.
> 
> The article is at http://www.ioug.org/python.pdf
> 
> If only I could have read it on my way into Python, it would have made
> things quite a bit easier for me, time-travel paradoxes
> notwithstanding.
> 
> Anyway, I had hoped to publish it in the IOUG's quarterly magazine,
> but they opted simply to web-publish it at their site.  I'm afraid,
> for evangelism purposes, it's pretty obscure right now.  Pushing the
> evangelism metaphor a little further, my lamp is not at all on a
> lampstand.
> 
> I'm bringing it up here for two reasons.
> 
> 1) If you personally want to help Oracle people to a friendly
> introduction, please gratify my ego and point them to it.
> 2) Ideas on where to go with it next.  IOUG told me I still have
> rights to try to publish or post it elsewhere, but I don't really know
> where.  Thoughts?

I suppose the database topic guide would be a good place to
place a pointer to the doc.

http://www.python.org/topics/database/

I'm just not sure who maintains that part of the python.org
tree these days (it used to be Andrew Kuchling IIRC).

-- 
Marc-Andre Lemburg
eGenix.com

Professional Python Services directly from the Source  (#1, Aug 11 2005)
>>> Python/Zope Consulting and Support ...        http://www.egenix.com/
>>> mxODBC.Zope.Database.Adapter ...             http://zope.egenix.com/
>>> mxODBC, mxDateTime, mxTextTools ...        http://python.egenix.com/
________________________________________________________________________
2005-07-18: Released mxODBC.Zope.DA for Zope 2.8

::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,FreeBSD for free ! ::::

From gvanrossum at gmail.com  Fri Aug 12 00:59:45 2005
From: gvanrossum at gmail.com (Guido van Rossum)
Date: Thu, 11 Aug 2005 15:59:45 -0700
Subject: [DB-SIG] introduction for Oracle-based newbies; evangelism
In-Reply-To: <6523e39a05081111234ee7900d@mail.gmail.com>
References: <6523e39a05081111234ee7900d@mail.gmail.com>
Message-ID: <ca471dc2050811155930ba1cfc@mail.gmail.com>

On 8/11/05, Catherine Devlin <catherine.devlin at gmail.com> wrote:
> 1) If you personally want to help Oracle people to a friendly
> introduction, please gratify my ego and point them to it.
> 2) Ideas on where to go with it next.  IOUG told me I still have
> rights to try to publish or post it elsewhere, but I don't really know
> where.  Thoughts?

I sent this to my local Oracle folks, one of whom suggested that you
could try the various local oracle user groups next. They might be
more interested than IOUG. E.g. http://nocoug.org/

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)

From andy47 at halfcooked.com  Sat Aug 13 01:13:11 2005
From: andy47 at halfcooked.com (Andy Todd)
Date: Sat, 13 Aug 2005 09:13:11 +1000
Subject: [DB-SIG] introduction for Oracle-based newbies; evangelism
In-Reply-To: <6523e39a05081111234ee7900d@mail.gmail.com>
References: <6523e39a05081111234ee7900d@mail.gmail.com>
Message-ID: <42FD2D07.3040709@halfcooked.com>

Catherine Devlin wrote:
> Hi, SIG!  ("Hi, Catherine!")
> 
> I'm basically an Oracle DBA who uses Python on the side, and I'm tired
> of seeing blank stares at Oracle meetings when I mention my Python
> passion.  So I wrote up an article designed to smooth the entry to
> Python for Oracle people, addressing the things I think are likely to
> confuse an Oracle-based newbie.  Or the things that confused me, at
> least.
> 
> The article is at http://www.ioug.org/python.pdf
> 
> If only I could have read it on my way into Python, it would have made
> things quite a bit easier for me, time-travel paradoxes
> notwithstanding.
> 
> Anyway, I had hoped to publish it in the IOUG's quarterly magazine,
> but they opted simply to web-publish it at their site.  I'm afraid,
> for evangelism purposes, it's pretty obscure right now.  Pushing the
> evangelism metaphor a little further, my lamp is not at all on a
> lampstand.
> 
> I'm bringing it up here for two reasons.
> 
> 1) If you personally want to help Oracle people to a friendly
> introduction, please gratify my ego and point them to it.
> 2) Ideas on where to go with it next.  IOUG told me I still have
> rights to try to publish or post it elsewhere, but I don't really know
> where.  Thoughts?
> 
> Thanks!
> - Catherine
> http://catherinedevlin.blogspot.com/
> _______________________________________________
> DB-SIG maillist  -  DB-SIG at python.org
> http://mail.python.org/mailman/listinfo/db-sig

In my opinion your best bet is to turn it into HTML and post it up on 
the web somewhere. Then with the combined google-juice of the people 
reading this mailing list it would soon make the front page of most 
search results for Oracle+Python.

I'm not sure that Oracle would be that interested in promoting this or 
any similar article as Python isn't a strategic direction for them. 
Their open source efforts are more focussed towards Linux and PHP at the 
moment, but you never know where a little perseverance will get you. The 
home of this kind of content in the Oracle world is OTN [1] so maybe you 
could try this same question in their forums.

[1] http://www.oracle.com/technology/index.html

Regards,
Andy
-- 
--------------------------------------------------------------------------------
 From the desk of Andrew J Todd esq - http://www.halfcooked.com/

From andy47 at halfcooked.com  Mon Aug 15 15:56:23 2005
From: andy47 at halfcooked.com (Andy Todd)
Date: Mon, 15 Aug 2005 23:56:23 +1000
Subject: [DB-SIG] pygresql class field auto-generation
In-Reply-To: <200507291528.55202.jsaker@americanrelay.com>
References: <200507291528.55202.jsaker@americanrelay.com>
Message-ID: <43009F07.6020100@halfcooked.com>

James Saker wrote:
> Hello,
> 
> I've been working with pygresql succesfully through a project that has a need 
> for classes to mirror my postgresql tables while operating (it's a customer 
> billing project). To this point, I've manually created classes like customer, 
> product, subscription all manually by mirroring the structure of the 
> postgresql table in a static class definition of the same name. Then I've 
> built methods to initialize the objects after testing for valid criteria 
> (e.g. valid integer value customer ID of ten digits before querying the 
> database and populating the customer object). The real downside is that this 
> takes forever, is terribly static and rather time consuming to build and 
> maintain.
> 
> Having read some of pg.DB's capabilities like get_attnames(table), and looking 
> at a psycopg recipe with some similar capabilities, I was curious if anyone 
> knew if a good pygresql class recipe I can inherit from that would provide 
> this mechanism of getting all the attributes and automatically generating the 
> object's attributes to match, along with other useful insertion/query 
> methods.
> 
> Jamie
> _______________________________________________
> DB-SIG maillist  -  DB-SIG at python.org
> http://mail.python.org/mailman/listinfo/db-sig

Jamie,

I don't know if this response is too late, but have you looked at 
SQLObject? [1]

It provides a ready made object-relational mapper which saves you 
writing a lot of wrapper code and may be just what you are looking for.

[1] http://www.sqlobject.org/

Regards,
Andy
-- 
--------------------------------------------------------------------------------
 From the desk of Andrew J Todd esq - http://www.halfcooked.com/

From vinjvinj at yahoo.com  Thu Aug 18 13:05:35 2005
From: vinjvinj at yahoo.com (Vinj Vinj)
Date: Thu, 18 Aug 2005 04:05:35 -0700 (PDT)
Subject: [DB-SIG] pickling error with db_row object
Message-ID: <20050818110535.69786.qmail@web32805.mail.mud.yahoo.com>

I have been using db_row extensively in my application
and have been very pleased with it. 

Some times I end up putting objects which contain
db_row objects in the sesssion object. When the
session object gets pickled it gives me an error that

PicklingError: Can't pickle <class 'db_row.irow'>:
attribute lookup db_row.irow failed,

Moving all my db_row data to actual python objects
would be a lot of effort and hit performance as well.
Is there a better way and why will it not pickle
db_row objects

Thanks,

From MReddy at Bear.com  Tue Aug 30 17:02:37 2005
From: MReddy at Bear.com (Reddy, Murali (Exchange))
Date: Tue, 30 Aug 2005 11:02:37 -0400
Subject: [DB-SIG] I need PYTHON- DB2 -connection info SUN OS 5.8
Message-ID: <FC442AD533F9714784E11345EF087EBCF1F602@whexchmb01.bsna.bsroot.bear.com>

Hello,

 

One of my collegue wrote a PYTHON(2.2)  Program reads data from DB2
database. The script is on SUN OS (5.8 ) version.

 

 

I need to install DB2 client libraries on my SUN Server.

 

 

Any body has any idea , what are the freely available software packages
available

 

 

Pl help me 

 

 

Pl reply

 

 

Regards

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***********************************************************************
Bear Stearns is not responsible for any recommendation, solicitation, 
offer or agreement or any information about any transaction, customer 
account or account activity contained in this communication.
***********************************************************************


From denials at gmail.com  Wed Aug 31 13:33:28 2005
From: denials at gmail.com (Dan Scott)
Date: Wed, 31 Aug 2005 07:33:28 -0400
Subject: [DB-SIG] I need PYTHON- DB2 -connection info SUN OS 5.8
In-Reply-To: <FC442AD533F9714784E11345EF087EBCF1F602@whexchmb01.bsna.bsroot.bear.com>
References: <FC442AD533F9714784E11345EF087EBCF1F602@whexchmb01.bsna.bsroot.bear.com>
Message-ID: <fbb0d11d0508310433cf82a2c@mail.gmail.com>

Freely downloadable DB2 clients are available from 
http://ibm.com/db2/udb/support/downloadv8.html.

If you need to build pyDB2, then you should download and install the DB2 
Application Development Client to get the include files. Note that I haven't 
actually checked to see if Solaris 5.8 is supported -- if that's a 
relatively recent version, then it _should_ be.

Dan

On 8/30/05, Reddy, Murali (Exchange) <MReddy at bear.com> wrote:
> 
>  Hello,
> 
>  One of my collegue wrote a PYTHON(2.2) Program reads data from DB2 
> database. The script is on SUN OS (5.8 ) version.
> 
>   I need to install DB2 client libraries on my SUN Server.
> 
>   Any body has any idea , what are the freely available software packages 
> available
> 
>   Pl help me 
> 
>   Pl reply
> 
>   Regards
>  
> 
> 
> ***********************************************************************
> Bear Stearns is not responsible for any recommendation, solicitation,
> offer or agreement or any information about any transaction, customer
> account or account activity contained in this communication.
> ***********************************************************************
> 
> 
> 
> _______________________________________________
> DB-SIG maillist - DB-SIG at python.org
> http://mail.python.org/mailman/listinfo/db-sig
> 
> 
>
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