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How can I represent an 'Enum' in Python?

... in PEP 435. It has also been backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4 on pypi. For more advanced Enum techniques try the aenum library (2.7, 3.3+, same author as enum34. Code is not perfectly compatible between py2 and py3, e.g. you'll need __order__ in python 2). To use enum34, do...
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Possibility of duplicate Mongo ObjectId's being generated in two different collections?

...collection-independent; it's global. The Java driver, for example, uses a randomly initialized, static AtomicInteger. So why, in the Mongo docs, do they say that the IDs are "highly likely" to be unique, instead of outright saying that they WILL be unique? Three possibilities can occur where you w...
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Error “library not found for” after putting application in AdMob

... Sometimes you just remove the reference of the library and add reference again. Apart from adding the Google Mobile Ads SDK and other libraries again from scratch, I would recommend you checking the Library Search Paths. There are instances when you copy or duplicate a target, ...
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HTTPS setup in Amazon EC2

...TTPS port (443). To do that, you go to https://console.aws.amazon.com/ec2/ and click on the Security Groups link on the left, then create a new security group with also HTTPS available. Then, just update the security group of a running instance or create a new instance using that group. After thes...
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How much does it cost to develop an iPhone application? [closed]

... I'm one of the developers for Twitterrific and to be honest, I can't tell you how many hours have gone into the product. I can tell you everyone who upvoted the estimate of 160 hours for development and 40 hours for design is fricken' high. (I'd use another phrase, bu...
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Generate array of all letters and digits

Using ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily? 7 Answers ...
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Compression/Decompression string with C#

I am newbie in .net. I am doing compression and decompression string in C#. There is a XML and I am converting in string and after that I am doing compression and decompression.There is no compilation error in my code except when I decompression my code and return my string, its returning only half ...
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JRuby on Rails vs. Ruby on Rails, what's difference?

I'm looking to try out JRuby and JRuby on Rails. I'm having trouble finding information on what's difference between JRuby on Rails and Ruby on Rails. ...
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What's the difference between window.location= and window.location.replace()?

...n item to your history in that you can (or should be able to) click "Back" and go back to the current page. window.location.replace replaces the current history item so you can't go back to it. See window.location: assign(url): Load the document at the provided URL. replace(url):Replace...
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add created_at and updated_at fields to mongoose schemas

Is there a way to add created_at and updated_at fields to a mongoose schema, without having to pass them in everytime new MyModel() is called? ...