🌐 Mailman 3 March 2005 - Python-list - python.org

enter key event in wxpython
by Raghul March 1, 2005

March 1, 2005

hi, I am developing a jabber client.What I need is whrn i enter text in the text area and when I press return key. The following text should be send.I found the way to send the message, the only thing is I want to handle the enter key event.how to do this? so that when i press enter key, The key id or the event to be handled. Help me pls.

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closing tabs in wxpython
by Raghul March 1, 2005

March 1, 2005

hi, Can anybody help in closing tabs in wxpython.Pls give me a sample program for explaining this.Thanx in advance

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How do you control _all_ items added to a list?
by Xif March 1, 2005

March 1, 2005

Hi I want to have control over all items added to a list. The first attempt was to subclass list and override its .append() method. Problem is, there are plenty of other ways the list can have items added to it - e.g. extend, insert - and theyr'e not at all affected by the changes I made to append. Is there some "base" item-adding method that all other item-adding methods use, so I can override it and have the changes affect all item-adding functions? Thanks, Xif

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Re: Scoping issue with import
by Steve Holden March 1, 2005

March 1, 2005

James Stroud wrote: > Say I have a module, we'll call it "my_imported_mod". It contains a function > in it that calls another function, "myfun". The "myfun" function is in the > module "my_main_mod", that imports "my_imported_mod". > > The code of "my_main_mod" might look like this: > ============== > from my_imported_mod import * > > def myfun(): > print "stuff" > ============== > > the code of "my_imported_mod" might look like this: > ============== > def somefun(): > myfun() > ============== > > When trying to execute the function somefun(), I get a > NameError: global name 'myfun' is not defined > > How to rectify this with minimal code change? How to let imported modules know > about the namespace they are getting imported into? I do not want to > restructure my code right now. > > Thanks in advance for help. > > James You have had some good advice about avoiding circular imports. I just wanted you to consider the coupling of your module. If the called function is calling a function inside the module that's calling it, this is often a clue that the inner function should be passed as a parameter to the first one. Let me know if this isn't comprehensible and I'll give you an example, but to show this being done inside a single module I present the code below: >>> def caller(f, arg): ... return f(arg) ... >>> def call(summat): ... print summat * 3 ... >>> caller(call, 21) 63 >>> caller(call, "string") stringstringstring This also demonstrates quite nicely how Python doesn't choose to discriminate between integers and strings at compile time, applying the correct definition of multiplication when the operation actually has to be performed. Some people hate this, most people who read comp.lang.python regularly will be quite happy to explain why it's a Good Thing (tm). regards Steve

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naming convention for scalars, lists, dictionaries ...
by beliavsky＠aol.com March 1, 2005

March 1, 2005

Since Python does not have declarations, I wonder if people think it is good to name function arguments according to the type of data structure expected, with names like "xlist" or "xdict".

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TKinter
by anthonyberet March 1, 2005

March 1, 2005

So, is it pronounced 'Tee-Kinter', or 'Tee-Kay-Inter'? I don't want to appear as a dork down the pub.

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zlib.decompress cannot, gunzip can
by enrio＠online.no March 1, 2005

March 1, 2005

I have a string which I try to decompress: body = zlib.decompress(body) but I get zlib.error: Error -3 while decompressing data: incorrect header check However, I can write the string to a file and run gunzip with the expected results: f = open('/tmp/bd.gz', 'w') f.write(body) f.close ... $ gunzip bd.gz $ less bd What should I do to decompress it in Python? Regards, Enrique

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Re: bsddb for k, v in db.items(): do order the numbers ?
by Steve Holden March 1, 2005

March 1, 2005

Christopher De Vries wrote: > On Mon, Feb 28, 2005 at 08:30:59AM -0800, martijn(a)gamecreators.nl wrote: > >>WHen I use the code below and printing all the results i get this: >>------ >>0 1 10 >>11 2 3 >>4 5 6 >>7 8 9 >>------ >>But I want >>------ >>0 1 2 >>3 4 5 >>6 7 8 >>9 10 11 >>------ > > > If you want your key, value pairs in a certain order you have to sort them > yourself. Dictionaries and bsddb keys are unsorted. > Remember, also, that the keys are strings, so you'll need to convert them to numbers if you want them to sort numerically - otherwise "11" will come before "2". regards Steve -- Meet the Python developers and your c.l.py favorites March 23-25 Come to PyCon DC 2005 http://www.pycon.org/ Steve Holden http://www.holdenweb.com/

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Sound and music libraries?
by Ben Sizer March 1, 2005

March 1, 2005

Are there any decent sound and music libraries for Python that are suitable for game use? Pygame is too closely tied to SDL, PyFMOD seems to no longer be maintained, and ALPY 1.0 has disappeared and is GPL anyway (not suitable for my purposes). I'd settle for DirectSound bindings but DirectX use in Python doesn't seem to be done for some reason. -- Ben Sizer.

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User Security (Roles & Permissions)
by Andreas Pauley March 1, 2005

March 1, 2005

Hi all, I'm starting with a Point of Sale system (QT gui, MySQL db) and I'm wondering if there are any user management/user security modules available that can be reused independently of the specific system that you write. I think something similar to the roles & permission scheme of Zope would work, were I can assign certain functionality/permissions to a role, and then assign each user a role. I'd prefer not to fully jump into Zope just yet, because although it has just about all the features you can think of, it is also fairly complex (for me at least). Regards, Andreas

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