Re: Sockets accept() in child processes

[Merwin]

Le 12/04/2012 19:10, Dan Stromberg a écrit :


I wonder if this'll do what you need:
https://trac.calendarserver.org/browser/CalendarServer/trunk/twext/python/sendfd.py


The problem is that this is Linux-only solution, and I would like to 
keep a multi-platform compatibility.


There are other ways to do this : use a Lock and do the select() 
directly in the children processes,
but I can't control which process will get the lock, and it's totally 
possible that only 2 processes on 8

will accept connections alternatively.



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SQLAlchemy DB Migration

[Merwin]

Hi everybody,

I'm looking for a way to migrate SQLAlchemy based database easily. I 
found Migrate, but finally it's almost the same as doing the migration 
by hand.


If this doesn't exists, do you think that it would be hard to do a 
simple migration tool which would :


- Add/Delete columns from DB if they are not anymore in the models 
(With a confirmation for deletion)
- Add/Delete constraints/sequences on table if they are not on the 
model too


We could also imagine a way to :

- Handle column rename, with data copy from one to another
- Handle column type change, with proper data conversion

Of course, such a system can't be 100% automated, that's not the goal. 
Human interventation will be needed, but it might be more simpler for 
simple cases than Migrate.


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Thibaut
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PySide / PyQt autocompletion in IDEs

[Merwin]

Hi,

I would like to work with PyQt / PySide, but there is a small problem : 
methods arguments are not completed by IDE's autocompletion.


When, typing "PySide.", I correctly get the module's attributes, but 
when I want to see what arguments are expected to a constructor / 
method, all I get is *args, **kwargs.


I perfectly understand why this happen, but do you know a way to get 
around this ?


I spend more time looking for arguments in Qt's documentation than 
effectively programming, which is a problem :-/


Thanks for reading,
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