macos

问题 I purchased a M1 Mac. Is anyone having issues with imshow with opencv. I did pip install opencv-python and brew install opencv and brew install opencv as well. import cv2 import urllib import numpy as np import requests url = 'https://www.visitcalifornia.com/sites/visitcalifornia.com/files/styles/welcome_image/public/vc_crtr_borntobewild_module_mendocino_st_rf_623667652_1280x640.jpg' from skimage import io img = io.imread(url) img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR) cv2.imshow('URL Image',

问题 I am writing to inform that i had installed mongodb-community some time back using brew (High Sierra) and it was running. Then recently i upgraded and it doesn't seem to wire up. When i am running mongo in terminal, I am getting error: MongoDB shell version v4.4.0 connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by

问题 The OperationQueue documentation states for the qualityOfService property: This property specifies the service level applied to operation objects added to the queue However one can simply check that this is not true by just copy & pasting the code below into a new playground. import Foundation let q = OperationQueue() q.qualityOfService = .userInitiated print("QUEUE", q.qualityOfService.rawValue) let op = BlockOperation() op.addExecutionBlock { print("OP", op.qualityOfService.rawValue) } q

问题 I' m using JetBrains Rider on MacOS and experimenting with code from Scott Wlaschin Domain Modelling Made Functional Here are my module definition and it dependencies: module internal DomainModeling.Domain.PlaceOrderWorkflow.Internal open DomainModeling.Domain.Api open DomainModeling.Domain.Primitives open DomainModeling.Domain.Utils I want to generate signature file from this module. But I'm confused of using dotnet builder or fsharp compiler. If I use dotnet command I can't pass flag --sig

问题 I' m using JetBrains Rider on MacOS and experimenting with code from Scott Wlaschin Domain Modelling Made Functional Here are my module definition and it dependencies: module internal DomainModeling.Domain.PlaceOrderWorkflow.Internal open DomainModeling.Domain.Api open DomainModeling.Domain.Primitives open DomainModeling.Domain.Utils I want to generate signature file from this module. But I'm confused of using dotnet builder or fsharp compiler. If I use dotnet command I can't pass flag --sig

问题 I'm attempting to rebuild Apple's XPC "lowerCase" sample code from Objective-C to Swift. I understand XPC will, but I'm relatively new to Swift and Objective-C interoperability. When I use their exact sample code, which passes a String from the app to the target and back, it works. But when I try and replace that with my own custom class, Person , I get the error: NSXPCConnection: ... connection on anonymousListener or serviceListener from pid 4133: Exception caught during decoding of

问题 I'm trying to set the paper feed in a NSPrintInfo object By now, I'm obtaining the paper feed options (from now on trays) from an IPP call ipp_t *request; request = ippNewRequest(IPP_GET_PRINTER_ATTRIBUTES); ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, printer_uri); respose = cupsDoRequest(http, request, "/"); ... string trays = ippGetString(ippFindAttribute(response, "media-source-supported", IPP_TAG_KEYWORD), 0, NULL); This returns me a comma-separated string

问题 I'm trying to set the paper feed in a NSPrintInfo object By now, I'm obtaining the paper feed options (from now on trays) from an IPP call ipp_t *request; request = ippNewRequest(IPP_GET_PRINTER_ATTRIBUTES); ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, printer_uri); respose = cupsDoRequest(http, request, "/"); ... string trays = ippGetString(ippFindAttribute(response, "media-source-supported", IPP_TAG_KEYWORD), 0, NULL); This returns me a comma-separated string

问题 I'm attempting to rebuild Apple's XPC "lowerCase" sample code from Objective-C to Swift. I understand XPC will, but I'm relatively new to Swift and Objective-C interoperability. When I use their exact sample code, which passes a String from the app to the target and back, it works. But when I try and replace that with my own custom class, Person , I get the error: NSXPCConnection: ... connection on anonymousListener or serviceListener from pid 4133: Exception caught during decoding of

问题 I'm attempting to rebuild Apple's XPC "lowerCase" sample code from Objective-C to Swift. I understand XPC will, but I'm relatively new to Swift and Objective-C interoperability. When I use their exact sample code, which passes a String from the app to the target and back, it works. But when I try and replace that with my own custom class, Person , I get the error: NSXPCConnection: ... connection on anonymousListener or serviceListener from pid 4133: Exception caught during decoding of