Hi there,
On Sun, Dec 23, 2012 at 01:42:14PM -0800, prilisa...@googlemail.com wrote:
> […] In the lower section you see, that the modules should execute
> sqls. In case It could occur that two queries occur at the same
> time. PS: IT IS NOT A QUESTION ABOUT SQL, etc. I do not understand,
> how I could handle the part which is marked with Problemsection1 and
> Problemsection2
I actually do not understand the problem you are stating. But, did you
have a look at SQLAlchemy? If you are coping a lot with SQL it really
makes your life much easier and they also provide the necessary
mechanisms for threading.
> import HomeLog # LogHandler
Modules should be written all lower-case separated by underscores.
> # Attach Loghandler
> Loghandler = HomeLog.Logging()
Have a look at the logging module and tutorial. I don't know what is
in HomeLog.Logging, but this doesn't seem right.
Variables defined at module level should be written all upper-case.
> # Attach SocketServer
> HomeSocketServer.HomeSocketServerStart()
>
> # Attach Scheduler
> HomeSched = HomeScheduler.HomeScheduler()
> […]
> # This is a "Sample" that builds 2byte Cmd and transmits it on bus
> PowerOnLamp1=Dali.send(0,0,1,80)
You do all this on the module level? These things should go into
functions with proper names or at least into a
if __name__ == '__main__':
pass
> ###############################################################
> HomeDaliServer.py
> ........
> def send (self,DaliAdress,RequestType,Request,RequestValue):
> # Problemsection1:
> # Here it's getting Interesting
> # We're at the HomeDaliServer, and now I want to use QuerySqlite()
> in the file HomeDatastore.py
So, where's the problem?
# make sure not to introduce cyclic dependence here!
import home_data_store
def send (connection,DaliAdress,RequestType,Request,RequestValue):
results = home_data_store.query_sqlite(connection, …)
return results
> ###############################################################
> HomeScheduler.py
> # Problemsection2:
> # If new workerthread is started, Informations must be queried using
> QuerySlite() and also update data
So, here's a first sketch (untested):
def query():
data = do_something()
return data
def update(data):
do_something_with(data)
> HomeDatastore.py
> def QuerySqlite():
> #doing something here..
> # returning Data
Have you read the Python tutorial by the way?
Regards,
Thomas.
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