Soy relativamente nuevo en Python y trato de implementar un módulo de multiprocesamiento para mi bucle for.

Tengo una matriz de URL de imágenes almacenadas en img_urls que necesito descargar y aplicar algo de visión de Google.

 if __name__ == '__main__': img_urls = [ALL_MY_Image_URLS] runAll(img_urls) print("--- %s seconds ---" % (time.time() - start_time))

Este es mi método runAll()

 def runAll(img_urls): num_cores = multiprocessing.cpu_count() print("Image URLS {}",len(img_urls)) if len(img_urls) > 2: numberOfImages = 0 else: numberOfImages = 1 start_timeProcess = time.time() pool = multiprocessing.Pool() pool.map(annotate,img_urls) end_timeProcess = time.time() print('\n Time to complete ', end_timeProcess-start_timeProcess) print(full_matching_pages) def annotate(img_path): file = requests.get(img_path).content print("file is",file) """Returns web annotations given the path to an image.""" print('Process Working under ',os.getpid()) image = types.Image(content=file) web_detection = vision_client.web_detection(image=image).web_detection report(web_detection)

Obtengo esto como advertencia cuando lo ejecuto y python falla

 objc[67570]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. objc[67570]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug. objc[67567]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. objc[67567]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug. objc[67568]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. objc[67568]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug. objc[67569]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. objc[67569]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug. objc[67571]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. objc[67571]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug. objc[67572]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. objc[67572]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug.