OT: Dovetail (was Re: Yet another database question, please)
and what Dabo does dovetails nicely. Dovetails? Sorry, English is not my native language ;) A carpentry term where two pieces of wood are formed to fit together to create the joint: http://images.google.com/images?q=dovetail Used metaphorically to mean as if they were meant to fit together. (I would have replied off-list, as it's not really apropos, but your email address was bogus) -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: Yet another database question, please
nmp a écrit : Bruno Desthuilliers wrote: nmp a écrit : Hello to all. I am only just learning both Python and PyGTK (with Glade). I also need to learn how to use databases in my programs. My preliminary research leads me in the direction of SQLAlchemy, which seems to be what everybody else is using. Since it's not quite clear from your question: SQLAlchemy is a pretty good package, but you need still need to know SQL to use it effectively (if it's your case, please forget this remark). I will forget the remark then ;) Sorry, was not obvious from your question !-) (snip) So, does anyone have a good example that shows how to tie these things toegether? I would like to have the GUI dialogs and treeviews directly interacting with the underlying tables and/or views. [cough]Like Borland Delphi 1.0, in the nineties...[/cough] From experience (with Delphi, VB and a couple related but less known systems), directly tying widgets to database is a pretty brittle architecture for anything else than QD Simple Stupid GUI/DB pipelines. Well, that's one of the reasons I mentioned Delphi within a cough... I remember using that some years ago for precisely the quick and dirty hacks that you speak of. I am sure there are better ways, but can you please point me to them? Well... I'm afraid I never done any serious rich-client programming in Python - I'm mostly doing web and sysadmin related stuff nowadays (that is, for the or more past years). I just know that when I was doing rich-client business apps on Window (that is: in a former life...), I always ended up removing all those pesky db-widgets and manually writing the code to tie GUI and model together - I guess that's what is called a controler in the MVC triad ?-) (snip) Of course I would like a very robust solution, this is very important. However, fast and relatively easy development and prototyping are important too. Python was sold to me as a language that is very ceonvenient for this. Yeps, that's how they got me hooked too !-) (snip) Accessing databases seems to be a bigger step though. There doesn't seem to be a standardised way to do it. And I am slightly nervous about having to reinvent any wheels. About DB access, there are two major APIs : the official (low-level - that is,relatively to the other one...) db-api, and the higher-level SQLAlchemy package. Note that while having an ORM part, SQLAlchemy is first an higher-level SQL/Python integration layer, so you can still think relational - but with something much more powerful than strings to build your queries. Tying the model (wether relational or not) with the UI is quite a different problem. I assume you know what MVC mean, and from then I'm afraid I can't help more. -- http://mail.python.org/mailman/listinfo/python-list
Re: Yet another database question, please
On Nov 30, 2007 9:20 AM, [EMAIL PROTECTED] wrote: On Nov 30, 7:23 am, nmp [EMAIL PROTECTED] wrote: Hello to all. I am only just learning both Python and PyGTK (with Glade). I also need to learn how to use databases in my programs. My preliminary research leads me in the direction of SQLAlchemy, which seems to be what everybody else is using. So, does anyone have a good example that shows how to tie these things toegether? I would like to have the GUI dialogs and treeviews directly interacting with the underlying tables and/or views. [cough]Like Borland Delphi 1.0, in the nineties...[/cough] Another question: I found that in Ubuntu, I was able to install the Glade widgets for libgnomedb (libgnomedb3-glade3). Would these be usable with Python/PyGTK, too? As is too common, the documentation provided is somewhat scarce. Any sort of pointers or suggestions welcome, of course. You should try Dabo. It sounds like what you want to do and what Dabo does dovetails nicely. http://dabodev.com/ Dabo doesn't work with PyGTK, so if he goes with Dabo, he'll have to settle for a GUI toolkit that looks native on all platforms instead of just Gnome. ;-) -- # p.d. -- http://mail.python.org/mailman/listinfo/python-list
Re: Yet another database question, please
nmp a écrit : Bruno Desthuilliers wrote: [..] About DB access, there are two major APIs : the official (low-level - that is,relatively to the other one...) db-api, and the higher-level SQLAlchemy package. Note that while having an ORM part, SQLAlchemy is first an higher-level SQL/Python integration layer, so you can still think relational - but with something much more powerful than strings to build your queries. Tying the model (wether relational or not) with the UI is quite a different problem. I assume you know what MVC mean, and from then I'm afraid I can't help more. MVC is one of those vague abbreviations that describe the architecture of three-tier client/server applications, right? :) Nope. It's one of those vague abbreviations that describes the architecture of GUI applications !-) More seriously, the original MVC concept (which comes from Smalltalk) is still worth studying. Anyway, I think I have found some study material. I don't know whether these are really good examples, but I will be studying the source code of http://bauble.belizebotanic.org/ and http://griffith.berlios.de/. These seem to be two programs in the same style that I want to create, using both SQLAlchemy and PyGTK. I have also found https://storm.canonical.com/ (looks trustworthy) and http://projects.amor.org/geniusql (website offline at the moment?) which could be alternatives for SQLAlchemy. I am not sure at this point if I want to go that course. Well, having used SQLAlchemy, I can tell you it's really worth it's weight in gold. -- http://mail.python.org/mailman/listinfo/python-list
Re: Yet another database question, please
On Nov 30, 7:23 am, nmp [EMAIL PROTECTED] wrote: Hello to all. I am only just learning both Python and PyGTK (with Glade). I also need to learn how to use databases in my programs. My preliminary research leads me in the direction of SQLAlchemy, which seems to be what everybody else is using. So, does anyone have a good example that shows how to tie these things toegether? I would like to have the GUI dialogs and treeviews directly interacting with the underlying tables and/or views. [cough]Like Borland Delphi 1.0, in the nineties...[/cough] Another question: I found that in Ubuntu, I was able to install the Glade widgets for libgnomedb (libgnomedb3-glade3). Would these be usable with Python/PyGTK, too? As is too common, the documentation provided is somewhat scarce. Any sort of pointers or suggestions welcome, of course. You should try Dabo. It sounds like what you want to do and what Dabo does dovetails nicely. http://dabodev.com/ Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: Yet another database question, please
nmp a écrit : Hello to all. I am only just learning both Python and PyGTK (with Glade). I also need to learn how to use databases in my programs. My preliminary research leads me in the direction of SQLAlchemy, which seems to be what everybody else is using. Since it's not quite clear from your question: SQLAlchemy is a pretty good package, but you need still need to know SQL to use it effectively (if it's your case, please forget this remark). So, does anyone have a good example that shows how to tie these things toegether? I would like to have the GUI dialogs and treeviews directly interacting with the underlying tables and/or views. [cough]Like Borland Delphi 1.0, in the nineties...[/cough] From experience (with Delphi, VB and a couple related but less known systems), directly tying widgets to database is a pretty brittle architecture for anything else than QD Simple Stupid GUI/DB pipelines. -- http://mail.python.org/mailman/listinfo/python-list
