{"library":"pyobjc","title":"PyObjC","description":"PyObjC is a bridge between Python and Objective-C, allowing Python scripts to use and extend existing Objective-C class libraries, most importantly Apple's Cocoa. It enables the development of full-featured macOS applications in pure Python and seamless integration with Objective-C, C, and C++ code. PyObjC (version 12.1) is actively maintained and typically releases new versions aligning with macOS SDK updates and Python version support.","language":"python","status":"active","last_verified":"Sat May 16","install":{"commands":["pip install pyobjc","pip install pyobjc-core pyobjc-framework-Cocoa pyobjc-framework-AVFoundation"],"cli":null},"imports":["import objc","from Foundation import NSObject, NSString","from AppKit import NSApplication, NSWindow"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import objc\nfrom Foundation import NSString, NSArray\n\n# Working with Objective-C classes\nhello = NSString.stringWithString_(\"Hello, World!\")\nprint(f\"Hello string length: {hello.length()}\") # Expected: 13\n\n# Creating and using Objective-C objects\n# Note the 'None' to signify the end of the variadic arguments for arrayWithObjects_\nmy_array = NSArray.arrayWithObjects_(\"foo\", \"bar\", \"baz\", None)\nprint(f\"Array count: {my_array.count()}\") # Expected: 3\nprint(f\"Object at index 1: {my_array.objectAtIndex_(1)}\") # Expected: bar\n\n# Using the bridge constants\nprint(f\"objc.YES: {objc.YES}\") # Expected: True\nprint(f\"objc.NO: {objc.NO}\")  # Expected: False\nprint(f\"objc.nil: {objc.nil}\") # Expected: None\n\n# Proper memory management with autorelease pools (good practice for intensive ops)\nwith objc.autorelease_pool():\n    temp_strings = []\n    for i in range(5):\n        temp_string = NSString.stringWithFormat_(\"Item %d\", i)\n        temp_strings.append(temp_string)\n    print(f\"Temporary strings created: {len(temp_strings)}\")\n    # Objects are automatically released when the pool exits","lang":"python","description":"This example demonstrates fundamental PyObjC interactions: creating Objective-C `NSString` and `NSArray` objects, calling their methods, accessing PyObjC's `objc.YES`/`NO`/`nil` constants, and using `objc.autorelease_pool` for memory 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