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Best way to handle list.index(might-not-exist) in python?
I have code which looks something like this:
12 Answers
12
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A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
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Yes, the code is standard conforming. The + triggers a conversion to a plain old function pointer for the lambda.
What happens is this:
The compiler sees the first lambda ([]{}) and generates a closure object according to §5.1.2. As the l...
How to get the input from the Tkinter Text Widget?
...es to the normal .get() function. If we have a text box myText_Box, then this is the method for retrieving its input.
def retrieve_input():
input = self.myText_Box.get("1.0",END)
The first part, "1.0" means that the input should be read from line one, character zero (ie: the very first charac...
How do I parse command line arguments in Bash?
Say, I have a script that gets called with this line:
37 Answers
37
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Location Manager Error : (KCLErrorDomain error 0)
Why does this error occur?
15 Answers
15
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ASP.NET MVC: What is the purpose of @section? [closed]
For an ASP.NET MVC application, I saw this blog article .
The author ScottGu adds @section to the Index.cshtml.
4 Answe...
Get the time difference between two datetimes
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This approach will work ONLY when the total duration is less than 24 hours:
var now = "04/09/2013 15:00:00";
var then = "04/09/2013 14:20:30";
moment.utc(moment(now,"DD/MM/YYYY HH:mm:ss").diff(moment(then,"DD/MM/YYYY HH:mm:s...
How do you test that a Python function throws an exception?
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Use TestCase.assertRaises (or TestCase.failUnlessRaises) from the unittest module, for example:
import mymod
class MyTestCase(unittest.TestCase):
def test1(self):
self.assertRaises(SomeCoolException, mymod.myfunc)
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Why do I need an IoC container as opposed to straightforward DI code? [closed]
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Wow, can't believe that Joel would favor this:
var svc = new ShippingService(new ProductLocator(),
new PricingService(), new InventoryService(),
new TrackingRepository(new ConfigProvider()),
new Logger(new EmailLogger(new ConfigProvider())));
over this:...
Retain cycle on `self` with blocks
I'm afraid this question is pretty basic, but I think it's relevant to a lot of Objective-C programmers who are getting into blocks.
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