Вопросы Теги

вызывание функций Objective C из Python?

Если у Вас есть что-то вроде этого: 

<input type="hidden" name="x" value="1" />
<input type="hidden" name="x" value="2" />
<input type="hidden" name="x" value="3" />

Ваша строка запроса собирается оказаться сходством с x=1&x=2&x=3... В зависимости от программного обеспечения сервера Вы используете для парсинга строки запроса, это не могло бы работать хорошо.

10
задан Mark Harrison 29 September 2009 в 00:47
поделиться

4 ответа

Since OS X 10.5, OS X has shipped with the PyObjC bridge, a Python-Objective-C bridge. It uses the BridgeSupport framework to map Objective-C frameworks to Python. Unlike, MacRuby, PyObjC is a classical bridge--there is a proxy object on the python side for each ObjC object and visa versa. The bridge is pretty seamless, however, and its possible to write entire apps in PyObjC (Xcode has some basic PyObjC support, and you can download the app and file templates for Xcode from the PyObjC SVN at the above link). Many folks use it for utilities or for app-scripting/plugins. Apple's developer site also has an introduction to developing Cocoa applications with Python via PyObjC which is slightly out of date, but may be a good overview for you.

In your case, the following code will call [NSSpeechSynthesizer availableVoices]:

from AppKit import NSSpeechSynthesizer

NSSpeechSynthesizer.availableVoices()

which returns

(
    "com.apple.speech.synthesis.voice.Agnes",
    "com.apple.speech.synthesis.voice.Albert",
    "com.apple.speech.synthesis.voice.Alex",
    "com.apple.speech.synthesis.voice.BadNews",
    "com.apple.speech.synthesis.voice.Bahh",
    "com.apple.speech.synthesis.voice.Bells",
    "com.apple.speech.synthesis.voice.Boing",
    "com.apple.speech.synthesis.voice.Bruce",
    "com.apple.speech.synthesis.voice.Bubbles",
    "com.apple.speech.synthesis.voice.Cellos",
    "com.apple.speech.synthesis.voice.Deranged",
    "com.apple.speech.synthesis.voice.Fred",
    "com.apple.speech.synthesis.voice.GoodNews",
    "com.apple.speech.synthesis.voice.Hysterical",
    "com.apple.speech.synthesis.voice.Junior",
    "com.apple.speech.synthesis.voice.Kathy",
    "com.apple.speech.synthesis.voice.Organ",
    "com.apple.speech.synthesis.voice.Princess",
    "com.apple.speech.synthesis.voice.Ralph",
    "com.apple.speech.synthesis.voice.Trinoids",
    "com.apple.speech.synthesis.voice.Vicki",
    "com.apple.speech.synthesis.voice.Victoria",
    "com.apple.speech.synthesis.voice.Whisper",
    "com.apple.speech.synthesis.voice.Zarvox"
)

(a bridged NSCFArray) on my SL machine.

9
ответ дан 3 December 2019 в 14:11
поделиться

Mac OS X начиная с 10.5 поставляется с Python и модулем objc, который позволит вам делать то, что вы хотите.

Пример: 

from Foundation import *

thing = NSKeyedUnarchiver.unarchiveObjectWithFile_(some_plist_file)

Вы можете найти дополнительную документацию здесь .

4
ответ дан 3 December 2019 в 14:11
поделиться

Вероятно, вам понадобится PyObjC . Тем не менее, я сам никогда не использовал его (я видел только демо-версии), поэтому я не уверен, что он будет делать то, что вам нужно.

3
ответ дан 3 December 2019 в 14:11
поделиться

As others have mentioned, PyObjC is the way to go. But, for completeness' sake, here's how you can do it with ctypes, in case you need it to work on versions of OS X prior to 10.5 that do not have PyObjC installed:

import ctypes
import ctypes.util

# Need to do this to load the NSSpeechSynthesizer class, which is in AppKit.framework
appkit = ctypes.cdll.LoadLibrary(ctypes.util.find_library('AppKit'))
objc = ctypes.cdll.LoadLibrary(ctypes.util.find_library('objc'))

objc.objc_getClass.restype = ctypes.c_void_p
objc.sel_registerName.restype = ctypes.c_void_p
objc.objc_msgSend.restype = ctypes.c_void_p
objc.objc_msgSend.argtypes = [ctypes.c_void_p, ctypes.c_void_p]

# Without this, it will still work, but it'll leak memory
NSAutoreleasePool = objc.objc_getClass('NSAutoreleasePool')
pool = objc.objc_msgSend(NSAutoreleasePool, objc.sel_registerName('alloc'))
pool = objc.objc_msgSend(pool, objc.sel_registerName('init'))

NSSpeechSynthesizer = objc.objc_getClass('NSSpeechSynthesizer')
availableVoices = objc.objc_msgSend(NSSpeechSynthesizer, objc.sel_registerName('availableVoices'))

count = objc.objc_msgSend(availableVoices, objc.sel_registerName('count'))
voiceNames = [
  ctypes.string_at(
    objc.objc_msgSend(
      objc.objc_msgSend(availableVoices, objc.sel_registerName('objectAtIndex:'), i),
      objc.sel_registerName('UTF8String')))
  for i in range(count)]
print voiceNames

objc.objc_msgSend(pool, objc.sel_registerName('release'))

It ain't pretty, but it gets the job done. The final list of available names is stored in the voiceNames variable above.

2012-4-28 Update: Fixed to work in 64-bit Python builds by making sure all parameters and return types are passed as pointers instead of 32-bit integers.

20
ответ дан 3 December 2019 в 14:11
поделиться