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Best way to generate random file names in Python

In Python, what is a good, or the best way to generate some random text to prepend to a file(name) that I'm saving to a server, just to make sure it does not overwrite. Thank you! ...
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Best way to give a variable a default value (simulate Perl ||, ||= )

I love doing this sort of thing in Perl: $foo = $bar || $baz to assign $baz to $foo if $bar is empty or undefined. You also have $foo ||= $bletch which will only assign $bletch to $foo if $foo is not defined or empty. ...
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How to “perfectly” override a dict?

How can I make as "perfect" a subclass of dict as possible? The end goal is to have a simple dict in which the keys are lowercase. ...
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How to listen for a WebView finishing loading a URL?

I have a WebView that is loading a page from the Internet. I want to show a ProgressBar until the loading is complete. ...
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Where am I wrong about my project and these Javascript Frameworks?

First off, the barest bones of the project I wish to create is a wiki engine implemented as a single page web app. I plan on having a set of features available from the get-go with plenty of feature additions down the road. ...
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What's the difference between HEAD, working tree and index, in Git?

Can someone tell me the difference between HEAD, working tree and index, in Git? 5 Answers ...
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Invoke a callback at the end of a transition

I need to make a FadeOut method (similar to jQuery) using D3.js . What I need to do is to set the opacity to 0 using transition() . ...
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Oracle Differences between NVL and Coalesce

Are there non obvious differences between NVL and Coalesce in Oracle? 8 Answers 8 ...
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Create Directory When Writing To File In Node.js

I've been tinkering with Node.js and found a little problem. I've got a script which resides in a directory called data . I want the script to write some data to a file in a subdirectory within the data subdirectory. However I am getting the following error: ...
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TypeScript function overloading

Section 6.3 of the TypeScript language spec talks about function overloading and gives concrete examples on how to implement this. However if I try something like this: ...