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What's the difference between Task.Start/Wait and Async/Await?
... windows messages, each one of which does a little bit of work? Now what happens? You return control to the message loop, it starts pulling messages out of the queue, doing a little bit of work each time, and the last job that's done is "execute the continuation of the task". No extra thread!
...
Doing something before program exit
...g/library/atexit.html
For example, if I wanted to print a message when my application was terminating:
import atexit
def exit_handler():
print 'My application is ending!'
atexit.register(exit_handler)
Just be aware that this works great for normal termination of the script, but it won't ge...
How to limit the maximum value of a numeric field in a Django model?
...ore I think about this, I realize how useful this would be for many Django apps. Perhaps a IntegerRangeField type could be submitted as a patch for the Django devs to consider adding to trunk.
This is working for me:
from django.db import models
class IntegerRangeField(models.IntegerField):
d...
How to check edittext's text is email address or not?
...lidation Example" />
</RelativeLayout>
Step 2:
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.EditText;
Step 3:
public class MainActivity extends Activity {
private EditText email;
private ...
How to make a Python script run like a service or daemon in Linux
...GNU/Linux system should have it already installed.
Use some kind of python approach (a library, for example) for your script to be able to daemonize itself. Yes, it will require a simple event loop (where your events are timer triggering, possibly, provided by sleep function).
I wouldn't recommen...
How to call C from Swift?
...
Yes, you can of course interact with Apples C libraries. Here is explained how.
Basically, the C types, C pointers, etc are translated into Swift objects, for example a C int in Swift is a CInt.
I've build a tiny example, for another question, which can be use...
git: How to ignore all present untracked files?
... don't have a .gitignore file yet your gitignore will ignore itself! This happens because the file .gitignore gets created before the git status --porcelain is executed. So if you don't have a .gitignore file yet I recommend using:
echo "$(git status --porcelain | grep '^??' | cut -c4-)" > .giti...
The model backing the context has changed since the database was created
...
Ps, this goes in Global.asax Application_Start()
– BritishDeveloper
Feb 23 '13 at 0:08
48
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How to generate keyboard events in Python?
...__name__ == "__main__":
AltTab()
hexKeyCode is the virtual keyboard mapping as defined by the Windows API. The list of codes is available on MSDN: Virtual-Key Codes (Windows)
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improve t...
How to explore web-based Google Play in another country?
...gle.com, it automatically recognizes my country and allow me to browse the apps for that country. I can change the language through the dropdown in the footer, or I can add &hl=code in the querystring...but that only changes the language...not the store content (the app lists and rankings remain the...