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What is the 'cls' variable used for in Python classes?
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The distinction between "self" and "cls" is defined in PEP 8 . As Adrien said, this is not a mandatory. It's a coding style. PEP 8 says:
Function and method arguments:
Always use self for the first argument to instance methods.
Always use cls for the firs...
CORS - How do 'preflight' an httprequest?
...domain scripting limitations. Because my service must accommodate both GET and POST requests I cannot implement some dynamic script tag whose src is the URL of a GET request. Since I am free to make changes at the server I have begun to try to implement a workaround that involves configuring the ser...
Calling a function every 60 seconds
...nction, delay)
That fires the function passed in as first parameter over and over.
A better approach is, to use setTimeout along with a self-executing anonymous function:
(function(){
// do some stuff
setTimeout(arguments.callee, 60000);
})();
that guarantees, that the next call is not...
How do I merge my local uncommitted changes into another Git branch?
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Stashing, temporary commits and rebasing may all be overkill. If you haven't added the changed files to the index, yet, then you may be able to just checkout the other branch.
git checkout branch2
This will work so long as no files that you are editi...
SmtpException: Unable to read data from the transport connection: net_io_connectionclosed
...anted to also offer encryption they were assigned a different port number, and on that port number they immediately initiated an SSL connection. As time went on they realized it was silly to waste two port numbers for one service and they devised a way for services to allow plaintext and encryption ...
How do I make an Android EditView 'Done' button and hide the keyboard when clicked?
When the user clicks on the EditView , Android opens the keyboard so that user can write in the EditView .
17 Answers
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How to convert a DOM node list to an array in Javascript?
...es, but it expects a Javascript array (it runs some Array methods on that) and I want to feed it the output of Document.getElementsByTagName that returns a DOM node list.
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Is there an easy way to request a URL in python and NOT follow redirects?
...2 it looks like the easiest way to do it would be to subclass HTTPRedirectHandler and then use build_opener to override the default HTTPRedirectHandler, but this seems like a lot of (relatively complicated) work to do what seems like it should be pretty simple.
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Split string into array of character strings
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How and why? Is this a regex meaning any character? Because in my mind, with the way split works, this should split on only the actual characters (, ?, !, ^, and ). However, it works as you say it does.
– Ty...
What is the difference between client-side and server-side programming?
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Your code is split into two entirely separate parts, the server side and the client side.
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---------->
HTTP request
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+--------------+ | +--------------+
| | | | |
| browser | ...