windows

Python multiprocessing and networking on Windows

主宰稳场 提交于 2021-02-08 13:33:06
问题 I'm trying to implement a tcp 'echo server'. Simple stuff: Client sends a message to the server. Server receives the message Server converts message to uppercase Server sends modified message to client Client prints the response. It worked well, so I decided to parallelize the server; make it so that it could handle multiple clients at time. Since most Python interpreters have a GIL, multithreading won't cut it. I had to use multiproces... And boy, this is where things went downhill. I'm

Tensorflow failed to create a newwriteablefile when retraining inception

故事扮演 提交于 2021-02-08 12:59:13
问题 I am following this tutorial: https://codelabs.developers.google.com/codelabs/tensorflow-for-poets/?utm_campaign=chrome_series_machinelearning_063016&utm_source=gdev&utm_medium=yt-desc#4 I am running this part of the code: python retrain.py \ --bottleneck_dir=bottlenecks \ --how_many_training_steps=500 \ --model_dir=inception \ --summaries_dir=training_summaries/basic \ --output_graph=retrained_graph.pb \ --output_labels=retrained_labels.txt \ --image_dir=flower_photos Here is the error that

Python rapidly creating and removing directories will cause WindowsError [Error 5] intermittently

自古美人都是妖i 提交于 2021-02-08 12:45:06
问题 I encountered this problem while using Scrapy's FifoDiskQueue . In windows, FifoDiskQueue will cause directories and files to be created by one file descriptor and consumed (and if no more message in the queue, removed) by another file descriptor. I will get error messages like the following, randomly: 2015-08-25 18:51:30 [scrapy] INFO: Error while handling downloader output Traceback (most recent call last): File "C:\Python27\lib\site-packages\twisted\internet\defer.py", line 588, in

How to access information in Windows Device Manager from Java?

时光总嘲笑我的痴心妄想 提交于 2021-02-08 12:41:26
问题 I have a serial to USB device and more than one of those can be connected to the computer. I need to query and retrieve a list of COM ports that the devices are connected to. In Windows Device Manager you can get the COM port + friendly name of devices that are connected at the present time. This list is dynamic. Reading from the registry did not work because the information stored is stale and static, not dynamic. Devcon (from Microsoft) does list the ports that devices are connected to, but

Get process name from pid or handle

好久不见. 提交于 2021-02-08 12:22:25
问题 Assuming I already have the handle to a window, I can get the PID with GetWindowThreadProcessId . Is there a way I can get the process name without having to get all the processes and try to match my PID? 回答1: You can use Process.GetProcessById to get Process . Process has a lot of information about the running program. Process.ProcessName gives you the name, Process.MainModule.FileName gives you the name of the executable file. 回答2: Process.GetProcessById(id).ProcessName 回答3: // Here is a

Get process name from pid or handle

心不动则不痛 提交于 2021-02-08 12:22:24
问题 Assuming I already have the handle to a window, I can get the PID with GetWindowThreadProcessId . Is there a way I can get the process name without having to get all the processes and try to match my PID? 回答1: You can use Process.GetProcessById to get Process . Process has a lot of information about the running program. Process.ProcessName gives you the name, Process.MainModule.FileName gives you the name of the executable file. 回答2: Process.GetProcessById(id).ProcessName 回答3: // Here is a

Get process name from pid or handle

痴心易碎 提交于 2021-02-08 12:21:56
问题 Assuming I already have the handle to a window, I can get the PID with GetWindowThreadProcessId . Is there a way I can get the process name without having to get all the processes and try to match my PID? 回答1: You can use Process.GetProcessById to get Process . Process has a lot of information about the running program. Process.ProcessName gives you the name, Process.MainModule.FileName gives you the name of the executable file. 回答2: Process.GetProcessById(id).ProcessName 回答3: // Here is a

Windows critical sections fairness

谁说我不能喝 提交于 2021-02-08 11:58:42
问题 I've a question about the fairness of the critical sections on Windows, using EnterCriticalSection and LeaveCriticalSection methods. The MSDN documentation specifies: "There is no guarantee about the order in which threads will obtain ownership of the critical section, however, the system will be fair to all threads." The problem comes with an application I wrote, which blocks some threads that never enter critical section, even after a long time; so I perfomed some tests with a simple c

Windows critical sections fairness

允我心安 提交于 2021-02-08 11:58:19
问题 I've a question about the fairness of the critical sections on Windows, using EnterCriticalSection and LeaveCriticalSection methods. The MSDN documentation specifies: "There is no guarantee about the order in which threads will obtain ownership of the critical section, however, the system will be fair to all threads." The problem comes with an application I wrote, which blocks some threads that never enter critical section, even after a long time; so I perfomed some tests with a simple c

Can't install TA-lib python issue with Microsoft Visual Studio

让人想犯罪 __ 提交于 2021-02-08 11:15:42
问题 Trying to do a simple pip install TA-lib but am getting errors, in install Microsoft visual studios 14 but still the problem persists. error code http://pastebin.com/h4jHWd1m I tried to install it manually but get this: setup.py:77: UserWarning: Cannot find ta-lib library, installation may fail. warnings.warn('Cannot find ta-lib library, installation may fail.') running install running build running build_py running build_ext building 'talib.common' extension C:\Program Files (x86)\Microsoft