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What is a clean, pythonic way to have multiple constructors in Python?
...': 'a'}
>>> f(1,2,param=3)
args: (1, 2) kwargs: {'param': 3}
http://docs.python.org/reference/expressions.html#calls
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Python function overloading
...
A possible option is to use the multipledispatch module as detailed here:
http://matthewrocklin.com/blog/work/2014/02/25/Multiple-Dispatch
Instead of doing this:
def add(self, other):
if isinstance(other, Foo):
...
elif isinstance(other, Bar):
...
else:
raise N...
Django rest framework, use different serializers in the same ModelViewSet
...ifferent serializers, why is nobody going for the approach that checks the HTTP method? It's clearer IMO and requires no extra checks.
def get_serializer_class(self):
if self.request.method == 'POST':
return NewRackItemSerializer
return RackItemSerializer
Credits/source: https://g...
Find running median from a stream of integers
...n optimized generator version with the indexable skiplist code inlined):
http://code.activestate.com/recipes/576930-efficient-running-median-using-an-indexable-skipli/
http://code.activestate.com/recipes/577073 .
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Best algorithm for detecting cycles in a directed graph [closed]
...bly "use a library", but failing that the following Wikipedia article:
http://en.wikipedia.org/wiki/Topological_sorting
has the pseudo-code for one algorithm, and a brief description of another from Tarjan. Both have O(|V| + |E|) time complexity.
...
Creating a JSON response using Django and Python
I'm trying to convert a server side Ajax response script into a Django HttpResponse, but apparently it's not working.
15 An...
How do I find the location of Python module sources?
...memodule.c
You can also find the latest Mercurial version on the web at
https://hg.python.org/cpython/file/tip/Modules/_datetimemodule.c
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foll...
Sending HTML email using Python
...an HTML version).
text = "Hi!\nHow are you?\nHere is the link you wanted:\nhttp://www.python.org"
html = """\
<html>
<head></head>
<body>
<p>Hi!<br>
How are you?<br>
Here is the <a href="http://www.python.org">link</a> you w...
How do I include a file over 2 directories back?
...e so:
define('BD', '/home/user/public_html/example/');
define('HTMLBD', 'http://example.com/');
When using 'BD' or my 'base directory' it looks like so:
file(BD.'location/of/file.php');
define(); reference
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Mongoose populate after save
...
You should be able to use the Model's populate function to do this: http://mongoosejs.com/docs/api.html#model_Model.populate In the save handler for book, instead of:
book._creator = user;
you'd do something like:
Book.populate(book, {path:"_creator"}, function(err, book) { ... });
Pro...