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How do I handle the window close event in Tkinter?
...ol handlers. Here, the term protocol refers to the interaction between the application and the window manager. The most commonly used protocol is called WM_DELETE_WINDOW, and is used to define what happens when the user explicitly closes a window using the window manager.
You can use the protocol m...
How do I check if a string is valid JSON in Python?
...
nothing wrong with it, just a noob mistake on my part. It appears I just cant call file.read() twice. But I can set a variable and use it. And thats what I did.
– Joey Blake
Apr 4 '11 at 15:23
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What's the difference between ContentControl and ContentPresenter?
...hat uses ContentPresenter to display it's content.
My rules of thumb (not applicable in every case, use your judgment):
Inside ControlTemplate use ContentPresenter
Outside of ControlTemplate (including DataTemplate and outside templates) try not to use any of them, if you need to, you must prefer...
Random “Element is no longer attached to the DOM” StaleElementReferenceException
...e for WebDriver to make a good guess about all the cases where this might happen - so it throws up its hands and gives control to you, who as the test/app author should know exactly what may or may not happen. What you want to do is explicitly wait until the DOM is in a state where you know things w...
Share data between AngularJS controllers
...controllers work with a reference to the same object:
JS:
// declare the app with no dependencies
var myApp = angular.module('myApp', []);
// Create the factory that share the Fact
myApp.factory('Fact', function(){
return { Field: '' };
});
// Two controllers sharing an object that has a strin...
Adding custom radio buttons in android
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To fit the text instead of overlapping it, set the button drawable, not the background, and make sure it is a 9-patch with stretch points and content areas indicated to fit the text.
– Lance Nanek
Feb 27 '14 at 13:27
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Yii2 data provider default sorting
...g instructions given by end users (through the sort configuration) will be appended to the existing orderBy clause. Any existing limit and offset clauses will be overwritten by the pagination request from end users (through the pagination configuration).
You can detail learn from
Yii2 Guide of Da...
Run R script from command line
...ou really want to use the ./a.R way of calling the script you could add an appropriate #! to the top of the script
#!/usr/bin/env Rscript
sayHello <- function(){
print('hello')
}
sayHello()
I will also note that if you're running on a *unix system there is the useful littler package which ...
How to customize user profile when using django-allauth
I have a django project with the django-allauth app. I need to collect additional data from the user at signup. I came across a similar question here but unfortunately, no one answered the profile customization part.
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How can you find and replace text in a file using the Windows command-line environment?
...on of it on my machine is C:\WINDOWS\system32\WindowsPowerShell\v1.0
UpdateApparently modern windows systems have PowerShell built in allowing you to access this directly using
(Get-Content myFile.txt) -replace 'foo', 'bar' | Out-File -encoding ASCII myFile.txt
...