pyobjc-framework-network

import objc from Foundation import NSObject, NSRunLoop, NSDefaultRunLoopMode, NSDate from Network import NWPathMonitor, NWPathStatus, NWInterfaceType class MyPathMonitorDelegate(NSObject): def init(self): self = super().init() if self: self.monitor = NWPathMonitor.alloc().init() # Define the path update handler as a Python method # PyObjC automatically bridges this to an Objective-C block. self.monitor.setPathUpdateHandler_(self.pathUpdateHandler_) # Start the monitor on a default dispatch queue (None) self.monitor.start_(None) return self def pathUpdateHandler_(self, path): """Called when the network path changes.""" print(f"[Path Update] {path}") if path.status() == NWPathStatus.satisfied: print(" Network path is satisfied (connected).") if path.usesInterfaceType_(NWInterfaceType.wifi): print(" Using Wi-Fi interface.") elif path.usesInterfaceType_(NWInterfaceType.cellular): print(" Using Cellular interface.") else: print(" Using another interface type.") else: print(" Network path is not satisfied (disconnected).") def stopMonitor(self): """Cancels the path monitor.""" self.monitor.cancel() print("NWPathMonitor stopped.") if __name__ == "__main__": print("Starting NWPathMonitor example...") delegate = MyPathMonitorDelegate.alloc().init() print("Monitoring network path for 10 seconds. Press Ctrl+C to stop earlier.") try: for _ in range(10): # Run the current thread's run loop for 1 second intervals # This is crucial for receiving asynchronous updates from NWPathMonitor NSRunLoop.currentRunLoop().runMode_beforeDate_(NSDefaultRunLoopMode, NSDate.dateWithTimeIntervalSinceNow_(1.0)) except KeyboardInterrupt: print("Monitoring interrupted by user.") finally: delegate.stopMonitor() print("Exiting.")