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python Programming Glossary: declarative

SQLAlchemy Inheritance

http://stackoverflow.com/questions/1337095/sqlalchemy-inheritance

numResidents How would I convert this to SQLAlchemy using declarative How then would I query which buildings are within x 5 and y.. worst of both worlds. Single table inheritance setup with declarative looks like this class Building Base __tablename__ 'building'..

How to discover table properties from SQLAlchemy mapped object

http://stackoverflow.com/questions/2441796/how-to-discover-table-properties-from-sqlalchemy-mapped-object

object I have a class mapped with a table in my case in a declarative way and I want to discover table properties columns names relations.. ' databasePath echo True # setting up root class for declarative declaration Base declarative_base bind engine class Ship Base.. # setting up root class for declarative declaration Base declarative_base bind engine class Ship Base __tablename__ 'ships' id Column..

Sqlite / SQLAlchemy: how to enforce Foreign Keys?

http://stackoverflow.com/questions/2614984/sqlite-sqlalchemy-how-to-enforce-foreign-keys

key support is enabled is to do a manual insert from a declarative ORM class # example ins Coverage.__table__.insert .values id..

SQLAlchemy declarative syntax with autoload (reflection) in Pylons

http://stackoverflow.com/questions/4526498/sqlalchemy-declarative-syntax-with-autoload-reflection-in-pylons

declarative syntax with autoload reflection in Pylons I would like to use.. to use an existings database. I know how to do it without declarative syntax model _ init _.py def init_model engine Call me before.. Event object pass This works fine but I would like to use declarative syntax class Event Base __tablename__ 'events' __table_args__..

Efficient Context-Free Grammar parser, preferably Python-friendly

http://stackoverflow.com/questions/4543008/efficient-context-free-grammar-parser-preferably-python-friendly

example of PLY both supporting feature structs and using a declarative grammar I'm also fine with any other parser that can do what..

Any Python OLAP/MDX ORM engines?

http://stackoverflow.com/questions/469200/any-python-olap-mdx-orm-engines

to get them. This has the disadvantage that it's not so declarative as we'd like. It has the advantage that it's pure Django ORM...

What are some good Python ORM solutions? [closed]

http://stackoverflow.com/questions/53428/what-are-some-good-python-orm-solutions

know about performance differences. SQLAlchemy also has a declarative layer that hides some complexity and gives it a ActiveRecord..

Multiple columns index when using the declarative ORM extension of sqlalchemy

http://stackoverflow.com/questions/6626810/multiple-columns-index-when-using-the-declarative-orm-extension-of-sqlalchemy

columns index when using the declarative ORM extension of sqlalchemy According to the documentation.. mytable.c.col4 How should we do it if we use the declarative ORM extension class A Base __tablename__ 'table_A' id Column.. the same make sure you're on recent 0.6 or 0.7 for the declarative A.a wrapper to be interpreted as a Column after the class declaration..

Creating a singleton in python

http://stackoverflow.com/questions/6760685/creating-a-singleton-in-python

some examples they generally seem to be related to declarative programming especially as used in ORMs. In this situation if..

Django vs other Python web frameworks?

http://stackoverflow.com/questions/702179/django-vs-other-python-web-frameworks

interface to your database is fully customizable using a declarative config class. It is also integrated with Dojo to give you infinitely..

SQLAlchemy classes across files

http://stackoverflow.com/questions/7478403/sqlalchemy-classes-across-files

from sqlalchemy import create_engine from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import relationship.. create_engine from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import relationship backref sessionmaker.. import relationship backref sessionmaker Base declarative_base import A import B import C engine create_engine sqlite..

Complex foreign key constraint in SQLAlchemy

http://stackoverflow.com/questions/8394177/complex-foreign-key-constraint-in-sqlalchemy

know how to construct this kind of constraint using SQL declarative or any other method. If necessary I could just validate this..