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Simple argparse example wanted: 1 argument, 3 results

The documentation for the argparse python module , while excellent I'm sure, is too much for my tiny beginner brain to grasp right now. I don't need to do math on the command line or meddle with formatting lines on the screen or change option characters. All I want to do is "If arg is A, do this...
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Why is SELECT * considered harmful?

Why is SELECT * bad practice? Wouldn't it mean less code to change if you added a new column you wanted? 15 Answers ...
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How to load/edit/run/save text files (.py) into an IPython notebook cell?

...h the magic command %load. If you execute a cell containing: %load filename.py the content of filename.py will be loaded in the next cell. You can edit and execute it as usual. To save the cell content back into a file add the cell-magic %%writefile filename.py at the beginning of the cell and ...
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Why is using the rails default_scope often recommend against?

Everywhere on the internet people mention that using the rails default_scope is a bad idea, and the top hits for default_scope on stackoverflow are about how to overwrite it. This feels messed up, and merits an explicit question (I think). ...
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What exactly is RESTful programming?

...rchitecture does not require these "pretty URLs". A GET request with a parameter http://myserver.com/catalog?item=1729 is every bit as RESTful. Keep in mind that GET requests should never be used for updating information. For example, a GET request for adding an item to a cart http://myserver.c...
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Curly braces in string in PHP

What is the meaning of { } (curly braces) in string literals in PHP? 5 Answers 5 ...
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How do I parse JSON with Objective-C?

I am new to iPhone. Can anyone tell me the steps to follow to parse this data and get the activity details, first name, and last name? ...
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Using Phonegap for Native Application development [closed]

I recently came across Phonegap . Have anyone of you tried it. Its an incredible tool which claims that developers can use HTML 5 based framework like Sencha touch and Jquery at the same time having access to native features on phone. Also the code is portable from Android to Iphone with some effo...
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Why it's not possible to use regex to parse HTML/XML: a formal explanation in layman's terms

...ich is the data structure underlying a regular expression) does not have memory apart from the state it's in, and if you have arbitrarily deep nesting, you need an arbitrarily large automaton, which collides with the notion of a finite automaton. The definition of regular expressions is equi...
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MIT vs GPL license [closed]

... It seems to me that the chief difference between the MIT license and GPL is that the MIT doesn't require modifications be open sourced whereas the GPL does. True - in general. You don't have to open-source your changes if you're using ...