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Pythonic wrappers for SQL?

P: n/a
I need to do some data manipulation, and SQLite is a nice little
product for it, except of course that I'd need to write SQL. Are
there any good libraries out there that let one write (basic) queries
in a Pythonic syntax, rather than directly in SQL?

Thanks,
Ken
Jan 14 '06 #1
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4 Replies


P: n/a
Il 2006-01-14, Kenneth McDonald <ke****************@sbcglobal.net> ha scritto:
I need to do some data manipulation, and SQLite is a nice little
product for it, except of course that I'd need to write SQL. Are
there any good libraries out there that let one write (basic) queries
in a Pythonic syntax, rather than directly in SQL?


You need an ORM

Try SQLAlchemy - http://sqlalchemy.org

Have fun
--
Lawrence - http://www.oluyede.org/blog
"Anyone can freely use whatever he wants but the light at the end
of the tunnel for most of his problems is Python"
Jan 14 '06 #2

P: n/a
Kenneth McDonald si profuso/a a scrivere su comp.lang.python tutte queste
elucubrazioni:
there any good libraries out there that let one write (basic) queries
in a Pythonic syntax, rather than directly in SQL?


You need an ORM. Beyond SQLAlchemy (I don't have experience with it) i
would suggest you try out SQLObject and PyDO.

Just a clue: although they prevent you from writing SQL, you'll have to
learn SQL basics anyway, or you won't understand the docs.

If you simply want to forget SQL, you can try out Axiom:

http://divmod.org/trac/wiki/DivmodAxiom

It's a native object database; it uses sqlite as backend, but that's
totally transparent to the user, you'll never be asked to enter a single
sql statement.

--
EleSSaR^ <el*********@despammed.com>
--
Togli .xyz dalla mia email per contattarmi.
Jan 14 '06 #3

P: n/a
Just to chime in with Steve Holden on taking the why-not-learn-SQL
route. Chris Fehily's new book, SQL, A Visual QuickStart Guide (2nd Ed)
is a masterpiece and goes well on the bookshelf with his equally lucid
Python QuickStart Guide.

Cheap, too, for what you get.

http://www.amazon.com/exec/obidos/as...icharddooling/

rpd

Jan 15 '06 #4

P: n/a
On 1/14/06, EleSSaR^ <el*********@despammed.com> wrote:
Kenneth McDonald si profuso/a a scrivere su comp.lang.python tutte queste
elucubrazioni:
there any good libraries out there that let one write (basic) queries
in a Pythonic syntax, rather than directly in SQL?


You need an ORM. Beyond SQLAlchemy (I don't have experience with it) i
would suggest you try out SQLObject and PyDO.

Just a clue: although they prevent you from writing SQL, you'll have to
learn SQL basics anyway, or you won't understand the docs.

If you simply want to forget SQL, you can try out Axiom:


Or - as a word play in this case - try my module ForgetSQL [1]

(Also available in a new and backwards-incompatible beta version [2]
which should be easier to get started with, has more extensive unit
tests, but has only been tested with MySQL and SQLite)

[1] http://soiland.no/software/forgetsql/
[2] http://soiland.no/i/src/forgetsql2/

Example code from [2]

import MySQLdb, forgetsql2
# Connect to MySQLdb using keyword parameters
db = forgetsql2.generate(MySQLdb, {db='fish'})

# Iterate through generated class from the table "postal"
for postal in db.Postal:
# Print normal fields
print postal.postal_no, postal.postal_name, postal.municipal_id
# Follow the foreign key municipal_id to retrieve the entry
# from the Municipal class
municipal = postal.get_municipal()
print municipal.municipal_name

# Retrieve by primary key
rogaland = db.County(county_id=11)
# Iterate over municipals that have foreign keys to rogaland
for municipal in rogaland.get_municipals():
print municipal.municipal_name

# Load by primary key, change, and save
postal = db.Postal(postal_id=4042)
postal.postal_name = "Fish land"
postal.save()
--
Stian Siland In theory there is no difference between theory
Birmingham, UK and practice. In practice there is. [Berra]
http://soiland.no/
=/\=
Jan 16 '06 #5

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