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Difference between staticmethod and classmethod
What is the difference between a function decorated with @staticmethod and one decorated with @classmethod ?
27 Answers
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What is a servicebus and when do I need one?
...s a language of identifying things, like an IP address in Ethernet. This name isn't something inherently physical.
Next, you have something physical involved on each node, like a queue in the case of a bus for supporting semi-connected communication, or an Ethernet card in the metaphor.
Beyond jus...
How does zip(*[iter(s)]*n) work in Python?
... a list containing n quantity of x, i.e. a list of length n, where each element is x. *arg unpacks a sequence into arguments for a function call. Therefore you're passing the same iterator 3 times to zip(), and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x,...
What's the difference between ASCII and Unicode?
...p to numbers 0–221 (though not all numbers are currently assigned, and some are reserved).
Unicode is a superset of ASCII, and the numbers 0–127 have the same meaning in ASCII as they have in Unicode. For example, the number 65 means "Latin capital 'A'".
Because Unicode characters don't genera...
Enabling error display in PHP via htaccess only
...on
php_flag html_errors on
php_flag log_errors on
php_value error_log /home/path/public_html/domain/PHP_errors.log
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Where do the Python unit tests go?
...ere are several commonly accepted places to put test_module.py:
In the same directory as module.py.
In ../tests/test_module.py (at the same level as the code directory).
In tests/test_module.py (one level under the code directory).
I prefer #1 for its simplicity of finding the tests and importin...
async/await - when to return a Task vs void?
... to disallow having the caller await your task, why disallow it?
2) async methods that return void are special in another aspect: they represent top-level async operations, and have additional rules that come into play when your task returns an exception. The easiest way is to show the difference i...
How do I put a border around an Android textview?
...le (a rectangle) as background for the view.
<TextView android:text="Some text" android:background="@drawable/back"/>
And rectangle drawable back.xml (put into res/drawable folder):
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<s...
What is the difference between association, aggregation and composition?
...ssociation, aggregation, and composition?
Please explain in terms of implementation.
19 Answers
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Partly JSON unmarshal into a map in Go
...
This can be accomplished by Unmarshaling into a map[string]json.RawMessage.
var objmap map[string]json.RawMessage
err := json.Unmarshal(data, &objmap)
To further parse sendMsg, you could then do something like:
var s sendMsg
err = json.Unmarshal(objmap["sendMsg"], &s)
For say, ...