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What does the slash mean in help() output?
...self after the last parameter, indented the same as the parameter lines.
and the (very recent addition to) the Python FAQ:
A slash in the argument list of a function denotes that the parameters prior to it are positional-only. Positional-only parameters are the ones without an externally-usabl...
Create RegExps on the fly using string variables
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And omit the / regex delimiters when using this form too.
– cdhowie
Dec 6 '10 at 22:28
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Autowiring two beans implementing same interface - how to set default bean to autowire?
...plements DeviceDao
This way it will be selected as the default autowire candididate, with no need to autowire-candidate on the other bean.
Also, rather than using @Autowired @Qualifier, I find it more elegant to use @Resource for picking specific beans, i.e.
@Resource(name="jdbcDeviceDao")
Devic...
How to construct a set out of list items in python?
I have a list of filenames in python and I would want to construct a set out of all the filenames.
6 Answers
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Java: using switch statement with enum under subclass
First I'll state that I'm much more familiar with enums in C# and it seems like enums in java is a quite mess.
6 Answers
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Inheritance and Overriding __init__ in python
I was reading 'Dive Into Python' and in the chapter on classes it gives this example:
5 Answers
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MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
as the title says, I want to perform a find (one) for a document, by _id, and if doesn't exist, have it created, then whether it was found or was created, have it returned in the callback.
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How to Test a Concern in Rails
...test your concerns against the actual classes that use them (e.g., models) and you'll be able to test them everywhere they're used. And you only have to write the tests once and then just include them in any model spec that uses your concern. In your case, this might look something like this:
# app...
ASP.NET MVC - Should business logic exist in controllers?
.....}
}
This assumes that tax is calculate by an external service, and requires your model to know about interfaces to your external services.
This would make your controller look something like:
public class OrdersController{
public OrdersController(ITaxService taxService, IOrdersRepo...
Convert Object to JSON string
... answered Oct 11 '10 at 7:35
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