Antti Rasinen arsatiki
arsatiki
/ gist:55527
Created
January 31, 2009 12:42
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| class Additive(type): | |
| def __add__(self, x): | |
| return type("Additive", (self, x), {}) | |
| class A(object): | |
| __metaclass__ = Additive | |
| def foo(self): | |
| print "foo" | |
| class B(object): |
arsatiki
/ gist:66262
Created
February 18, 2009 08:52
Do not use functions as metaclasses. It makes inheritance super-painful.
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| # class Foo(object): | |
| # ... | |
| # is syntactic sugar for | |
| # Foo = type('Foo', (object,), {...}) | |
| # And with a metaclass Meta: | |
| # Bar = Meta('Bar', (object,), {...}) | |
| def metafunc(name, bases, dict): | |
| print "I created a new class %s%s from %s" % (name, bases, dict) | |
| return type(name, bases, dict) |
arsatiki
/ gist:68991
Created
February 23, 2009 15:27
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| def is_true(self, request): | |
| items = Item.objects.filter(content_type=ContentType.objects.get_for_model(User), | |
| object_id=self.get_owner(request).pk, | |
| owner=request.user) | |
| return bool(items) | |
| # vs | |
| def is_true(self, request): | |
| ctype = ContentType.objects.get_for_model(User) |
arsatiki
/ gist:70179
Created
February 25, 2009 13:52
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| def find_maxlen(values, count): | |
| for i in range(count): | |
| yield max(len(v[i][1]) for v in values) | |
| shit = find_maxlen(marks.values(), len(data)) # Ehkä list() ympärille | |
arsatiki
/ gist:85410
Created
March 25, 2009 10:19
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| from django.http import HttpResponseNotAllowed | |
| METHODS = ('get', 'post', 'delete', 'head') | |
| class ViewDispatcher(object): | |
| def __init__(self): | |
| self.supported = [m for m in METHODS if hasattr(self, m)] | |
| def __call__(self, request, *args, **kwargs): | |
| method_func = getattr(self, request.method.lower(), None) |
arsatiki
/ gist:99665
Created
April 22, 2009 08:41
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| def choices(name, choicemap): | |
| """{name: value} -> C.name = value """ | |
| members = choicemap.copy() | |
| members[name] = tuple((k, k) for k in choicemap.values()) | |
| return type('%s_choices' % name, (), members) | |
| # sexes = {'MALE': 'male', 'FMLE': 'female'} | |
| # class FooModel(models.Model, choices('SEXES', sexes)) |
arsatiki
/ cartesian.py
Created
April 24, 2009 11:46
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| def cartesian(*lists): | |
| if not lists: | |
| yield () | |
| return | |
| for item in lists[0]: | |
| for tup in cartesian(*lists[1:]): | |
| yield (item,) + tup | |
| # >>> list(cartesian('abc', [1, 2])) | |
| # [('a', 1), ('a', 2), ('b', 1), ('b', 2), ('c', 1), ('c', 2)] |
arsatiki
/ gist:106478
Created
May 4, 2009 14:23
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| // Alustus: | |
| var dict:Dictionary = new Dictionary(); | |
| var keys = new Array("tekniikka", "..."); | |
| for (var key in keys) { | |
| dict[key] = {"name": key, "score": 0} | |
| } | |
arsatiki
/ gist:109958
Created
May 11, 2009 12:36
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| <html> | |
| <head> | |
| <title>This is shit</title> | |
| <style type="text/css"> | |
| #box { | |
| position: absolute; | |
| top: 50px; | |
| bottom: 20px; | |
| background: #f77; | |
| color: white; |
arsatiki
/ gist:131216
Created
June 17, 2009 12:42
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| class W(object): | |
| def __init__(self, i): | |
| self.i = iter(i) | |
| def __iter__(self): return self | |
| def next(self): return self.i.next() | |
| def __getslice__(self, start, end): | |
| return islice(self.i, start, end) | |
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