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Sass - Converting Hex to RGBa for background opacity

I have the following Sass mixin, which is a half complete modification of an RGBa example : 5 Answers ...
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Is there a way to chain multiple value converters in XAML?

I've got a situation in which I need to show an integer value, bound to a property on my data context, after putting it through two separate conversions: ...
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Is it considered bad practice to perform HTTP POST without entity body?

I need to invoke a process which doesn't require any input from the user, just a trigger. I plan to use POST /uri without a body to trigger the process. I want to know if this is considered bad from both HTTP and REST perspectives? ...
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Difference between except: and except Exception as e: in Python

Both the following snippets of code do the same thing. They catch every exception and execute the code in the except: block ...
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Python naming conventions for modules

I have a module whose purpose is to define a class called "nib". (and a few related classes too.) How should I call the module itself? "nib"? "nibmodule"? Anything else? ...
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MySQL: Transactions vs Locking Tables

I'm a bit confused with transactions vs locking tables to ensure database integrity and make sure a SELECT and UPDATE remain in sync and no other connection interferes with it. I need to: ...
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Why can't the tag contain a tag inside it?

... An authoritative place to look for allowed containment relations is the HTML spec. See, for example, http://www.w3.org/TR/html4/sgml/dtd.html. It specifies which elements are block elements and which are inline. For those lists, search for the section marked "HTML content ...
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What exactly is Python's file.flush() doing?

I found this in the Python documentation for File Objects : 4 Answers 4 ...
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What does “mro()” do?

In django.utils.functional.py : 4 Answers 4 ...
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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?

What does going with a document based NoSQL option buy you over a KV store, and vice-versa? 4 Answers ...