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Published on 2010-05-04T17:27:10Z
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2010/05/04
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can i do:
table.relationship.filter( column = value )
to get a subset of rows for relationships? and the same for order_by?
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I'm connection to mssql server through pyodbc, via FreeTDS odbc driver, on linux ubuntu 10.04.
Sqlalchemy 0.5 uses DATETIME for sqlalchemy.Date() fields.
Now Sqlalchemy 0.6 uses DATE, but sql server 2000 doesn't have a DATE type. How can I make DATETIME be the default for sqlalchemy.Date() on sqlalchemy…
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I'm running into this little problem that I hope is just a dumb user error. It looks like some sort of a size limit with a query to a SQLite database. I managed to reproduce the issue with an in-memory DB and a simple script shown below. I can make it work by either reducing the number of records…
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I am quite new to SQLAlchemy, or even database programming, maybe my question is too simple.
Now I have two class/table:
class User(Base):
__tablename__ = 'users'
id = Column(Integer, primary_key=True)
name = Column(String(40))
...
class Computer(Base):
__tablename__ = 'comps'
…
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I've set up a single table inheritance, but I need a "default" class to use when
an unknown polymorphic identity is encountered. The database is not in my
control and so the data can be pretty much anything.
A working example setup:
import sqlalchemy as sa
from sqlalchemy import orm
engine = sa…
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I have a large set of values V, some of which are likely to exist in a table T. I would like to insert into the table those which are not yet inserted. So far I have the code:
for value in values:
s = self.conn.execute(mytable.__table__.select(mytable.value == value)).first()
…
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I tried today to install a dvb-card on my Ubuntu 12.04 (Linux blauhai-linux 3.2.0-25-generic #40-Ubuntu SMP Wed May 23 20:30:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
). The installation failed with an error. After that, i tried to install python (it was already installed but i got this error):
linux:~$…
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I installed sikuli-ide with
sudo apt-get install sikuli-ide
Everything was fine until I tried to start it from the terminal. I typed
sikuli-ide
But the only response I got was
[info] locale: en_US
The application was not started, furthermore there is no desktop file and sikuli-ide does not…
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I can't import some python libraries (PIL, psycopg2) that I just installed with MacPorts. I looked through these forums, and tried to adjust my PATH variable in $HOME/.bash_profile in order to fix this but it did not work.
I added the location of PIL and psycopg2 to PATH.
I know that Terminal is…
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I want to pass a chunk of Python code to Python in R with something like system('python ...'), and I'm wondering if there is an easy way to emulate the python console in this case. For example, suppose the code is "print 'hello world'", how can I get the output like this in R?
>>> print…
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Hi,
I am currently struggling to call a non python program from a python script.
I have a ~1000 files that when passed through this C++ program will generate ~1000 outputs. Each output file must have a distinct name.
The command I wish to run is of the form:
program_name -input -output -o1 -o2…
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