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How to get all of the immediate subdirectories in Python
...;dr:
Always use scandir:
list_subfolders_with_paths = [f.path for f in os.scandir(path) if f.is_dir()]
Bonus: With scandir you can also simply only get folder names by using f.name instead of f.path.
This (as well as all other functions below) will not use natural sorting. This means results w...
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
...ws that no other session has locked, and keep them locked until you commit confirmation that the work is done. It even works with two-phase transactions for when external co-ordination is required.
External queueing systems remain useful, providing canned functionality, proven performance, integrat...
【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ted)
sk_dst_set(sk, dst_clone(&rt->dst));
}
if (msg->msg_flags&MSG_CONFIRM) //设置MSG_CONFIRM，表示确认ip地址到mac地址的映射不会过期，不用定时发送arp
goto do_confirm;
back_from_confirm:
saddr = fl4->saddr; //获取路由源地址
if (!ipc.addr) //如果选...
How to delete the contents of a folder?
...
import os, shutil
folder = '/path/to/folder'
for filename in os.listdir(folder):
file_path = os.path.join(folder, filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(file_p...
How do I remove the passphrase for the SSH key without having to create a new key?
...or default location.
Enter old passphrase
Enter new passphrase - BLANK
Confirm new passphrase - BLANK
BOOM the pain of entering passphrase for git push was gone.
Thanks!
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Is it possible to run JavaFX applications on iOS, Android or Windows Phone 8?
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
ASP.Net MVC Html.HiddenFor with wrong value
... accepted a valid view model and done something with it then redirect to a confirmation action, even if this also simply retreives and displays an equivalent model. This means you have a fresh ModelState. blogs.msdn.com/b/simonince/archive/2010/05/05/… (linked from a post I wrote on this today: ...
How should the ViewModel close the form?
...will raise the RequestClose event.
In order to get the window closed, the OnLoaded method of your window should be overridden:
void CustomerWindow_Loaded(object sender, RoutedEventArgs e)
{
CustomerViewModel customer = CustomerViewModel.GetYourCustomer();
DataContext = customer;
custom...
How to refer to relative paths of resources when working with a code repository
We are working with a code repository which is deployed to both Windows and Linux - sometimes in different directories. How should one of the modules inside the project refer to one of the non-Python resources in the project (CSV files, etc.)?
...
第一个Hello,OS World操作系统 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
第一个Hello,OS World操作系统hello_os_word_my_first_os操作系统并非我们想象中的深不可测、遥不可及，只要你对它感兴趣并随我一起动手实践，你也能开发出属于自己的os。本文通过一个最简单的os，完成Hello, OS World文字的输出来演示os...