Re: [Pyobjc-dev] PyObjC 2.0 & Xcode 3.0

[Ronald O. <ron...@ma...>]

On 31 Mar, 2009, at 9:44, Mike Matz wrote:

> Thanks Ronald.  Could you recommend anything for understanding the  
> Cocoa classes.  For example, right now I am stuck on implementing a  
> search field using the NSSearchField class.  Is there any literature  
> out there that would help explain how to implement that class?  And  
> possibly provide examples.  I have the O'Reilly Python Cookbook and  
> that has worked great for me because I can see how the code works.   
> I was stuck on implementing an NSTableView with an array before and  
> found a great tutorial to get me through it.  I feel like I am  
> missing something or not looking in the right places for answers.   
> The tutorial was completely different from Apples documentation.   
> Would I benefit more by posting to an Apple Cocoa list as well?

One great resource to get help is the pythonmac-sig mailinglist. That  
is a maillist for Python users on OSX and they tend to be a helpful  
bunch of people.

Any Cocoa book should help you get to understand how to use these  
frameworks. All books I know of assume that you'll program in  
Objective-C, but it is pretty straightforward to translate from ObjC  
to Python; the hard part is to understand how to use the frameworks in  
the first place.

Ronald

> Thanks,
> Mike
>
>
> On Mar 31, 2009, at 9:52 AM, Ronald Oussoren wrote:
>
>>
>> On 31 Mar, 2009, at 8:23, Mike Matz wrote:
>>
>>> I am attempting to write a small program using Python/PyObjC 2.0 and
>>> Xcode 3.  I have Python experience, but no Objective C  
>>> experience.  I
>>> have developed Cocoa applications in the past using AppleScript,  
>>> but I
>>> am finding there is a huge learning curve to using Python and Cocoa.
>>> I have found one or two good tutorials that that have gotten me  
>>> pretty
>>> far.  However, I am now at the point where I am trying to use  
>>> Apple's
>>> built in documentation of the ObjC/Cocoa classes and having trouble
>>> implementing them in my Python code.  I have searched Google high  
>>> and
>>> low for material relating to PyObjC 2.0 and Xcode 3.0, but have not
>>> found much.  Can anyone recommend tutorials, websites, even books,
>>> that might help me get a handle on Cocoa development with Python in
>>> Xcode?
>>
>> The examples and documentation on the PyObjc website should get you  
>> going as far as actual code is concerned.  Development using Xcode  
>> isn't documented very well (or at all) at the moment, mostly  
>> because I don't use Xcode a lot myself.
>>
>> For simple applications it you can just add all your Python files  
>> to an Xcode project that's started from one of the Python Cocoa  
>> templates that ship with Xcode. Don't forget to import all modules  
>> that define classes that are used by your NIB files (the "main.py"  
>> file seems  a great place to do that), otherwise the modules won't  
>> be loaded and Cocoa won't see your classes.
>>
>> Things get a little messy when you have dependencies on 3th party  
>> libraries, Xcode won't automaticly copy those into your .app bundle  
>> and you'll have to add a custom shell-script step to your Xcode  
>> project to do that for you.  It should be possible to create a tool  
>> based on py2app that does this for you, but AFAIK nobody has looked  
>> into that yet.
>>
>> Ronald
>>
>