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C# 5 async CTP: why is internal “state” set to 0 in generated code before EndAwait call?
... from the VB part of the team confirmed that there really is a good reason for it. Many thanks to him - and please visit his blog, which rocks.
The value 0 here is only special because it's not a valid state which you might be in just before the await in a normal case. In particular, it's not a sta...
Django filter queryset __in for *every* item in list
...ion is, as suggested by jpic and sgallen in the comments, to add .filter() for each category. Each additional filter adds more joins, which should not be a problem for small set of categories.
There is the aggregation approach. This query would be shorter and perhaps quicker for a large set of cate...
iPhone get SSID without private library
... of the network it is connected to: If it is connected to a Adhoc network for a 3rd party hardware device it needs to be functioning in a different manner than if it is connected to the internet.
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Python: Is it bad form to raise exceptions within __init__?
Is it considered bad form to raise exceptions within __init__ ? If so, then what is the accepted method of throwing an error when certain class variables are initialized as None or of an incorrect type?
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How to uninstall the “Microsoft Advertising SDK” Visual Studio extension?
One of the extensions listed in Visual Studio (2012 for me) is the "Microsoft Advertising SDK for Windows 8.1". I like to uninstall extensions I don't need, but this one won't allow me. if I hover the (enabled!) button it says in a tooltip:
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Python nested functions variable scoping [duplicate]
...I get this error:
UnboundLocalError: local variable '_total' referenced before assignment
This problem is caused by this line:
_total += PRICE_RANGES[key][0]
The documentation about Scopes and Namespaces says this:
A special quirk of Python is that – if no global statement is in effect ...
Why does running the Flask dev server run itself twice?
I'm using Flask for developing a website and while in development I run flask using the following file:
6 Answers
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Does Flask support regular expressions in its URL routing?
...regex will be evaluated directly at runtime. This shouldn't be problematic for smaller apps (or apps that reuse regex's multiple times, I'd think) as the last couple of regex patterns are stored compiled in memory.
– bbenne10
Jul 18 '13 at 14:13
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What exactly does += do in python?
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In Python, += is sugar coating for the __iadd__ special method, or __add__ or __radd__ if __iadd__ isn't present. The __iadd__ method of a class can do anything it wants. The list object implements it and uses it to iterate over an iterable object append...
How can you encode a string to Base64 in JavaScript?
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Note that this also works for webkit browsers, such as Safari.
– Daniel Von Fange
Sep 2 '10 at 9:59
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