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Why does Math.round(0.49999999999999994) return 1?

...d%28double%29 2. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6430675 (credits to @SimonNickerson for finding this) 3. http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#round%28double%29 4. http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7u40-b43/jav...
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Disable output buffering

...pper which does a flush after every call. class Unbuffered(object): def __init__(self, stream): self.stream = stream def write(self, data): self.stream.write(data) self.stream.flush() def writelines(self, datas): self.stream.writelines(datas) self.stream.f...
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Django dynamic model fields

...ister(Patient) Attribute.objects.create(name='age', datatype=Attribute.TYPE_INT) Attribute.objects.create(name='height', datatype=Attribute.TYPE_FLOAT) Attribute.objects.create(name='weight', datatype=Attribute.TYPE_FLOAT) Attribute.objects.create(name='city', datatype=Attribute.TYPE_TEXT) Attribute...
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Nested classes' scope?

... class Outer(object): outer_var = 1 class Inner(object): @property def inner_var(self): return Outer.outer_var This isn't quite the same as similar things work in other languages, and uses global lookup instead of sco...
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Filter by property

... them: With a Manager: class CompanyManager(models.Manager): def with_chairs_needed(self): return self.annotate(chairs_needed=F('num_employees') - F('num_chairs')) class Company(models.Model): # ... objects = CompanyManager() Company.objects.with_chairs_needed().filter(chairs...
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AngularJS HTTP post to PHP and undefined

... data value to pass an appropriate query string, so PHP is not populating $_POST as you expect. My suggestion would be to just use the default angularjs setting of application/json as header, read the raw input in PHP, and then deserialize the JSON. That can be achieved in PHP like this: $postdat...
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Link to all Visual Studio $ variables

... on my machine. Probably not all macros are defined for others (e.g. OCTAVE_EXECUTABLE), but I wanted to err on the side of inclusiveness here. For example, this is the first time that I see $(Language) (expanding to C++ for this project) being mentioned outside of the IDE. $(AllowLocalNetworkLoop...
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Are email addresses case sensitive?

...uins it :( – epelc Sep 19 '16 at 17:06 6 @epelc THIS. Cannot agree more. That kind of query build...
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sqlalchemy unique across multiple columns

... declares those in the table definition, or if using declarative as in the __table_args__: # version1: table definition mytable = Table('mytable', meta, # ... Column('customer_id', Integer, ForeignKey('customers.customer_id')), Column('location_code', Unicode(10)), UniqueConstraint...
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ViewDidAppear is not called when opening app from background

...did appear"); } At launch, the output looks like this: 2013-04-07 09:31:06.505 myapp[15459:11303] view did load 2013-04-07 09:31:06.507 myapp[15459:11303] view will appear 2013-04-07 09:31:06.511 myapp[15459:11303] app did become active 2013-04-07 09:31:06.512 myapp[15459:11303] did become active...