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Django select only rows with duplicate field values
...ango. The problem is that this will return a ValuesQuerySet with only name and count. However, you can then use this to construct a regular QuerySet by feeding it back into another query:
dupes = Literal.objects.values('name')
.annotate(Count('id'))
.or...
python list by value not by reference [duplicate]
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what is the difference between a regular copy and a deep copy? Why does what happens above happen? I think I have a general understanding, it seems to be like the same problem encountered by the op at the second layer. How does it work internally?
–...
clang: how to list supported target architectures?
Currently I am interested in ARM in general and specifically iphone/android targets. But I just want to know more about clang, since it feels to play important role in the years to come.
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Flexbox not giving equal width to elements
Attempting a flexbox nav that has up to 5 items and as little as 3, but it's not dividing the width equally between all the elements.
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Why aren't Java Collections remove methods generic?
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Josh Bloch and Bill Pugh refer to this issue in Java Puzzlers IV: The
Phantom Reference Menace, Attack of the Clone, and Revenge of The
Shift.
Josh Bloch says (6:41) that they attempted to generify the get method
of Map, remove meth...
How to create Windows EventLog source from command line?
...events.
Type eventcreate /? in CMD prompt
Microsoft TechNet: Windows Command-Line Reference: Eventcreate
SS64: Windows Command-Line Reference: Eventcreate
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HTML input - name vs. id [duplicate]
... <input> tag, what is the difference between the use of the name and id attributes especially that I found that they are sometimes named the same?
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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...lues. As I iterate over the data set, I need to detect such missing values and handle them in special ways.
2 Answers
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How to cast an Object to an int
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Beware, it can throw a ClassCastException if your object isn't an Integer and a NullPointerException if your object is null.
This way you assume that your Object is an Integer (the wrapped int) and you unbox it into an int.
int is a primitive so it can't be stored as an Object, the only way is to...
The thread has exited with code 0 (0x0) with no unhandled exception
... message. You can switch that off by right clicking into the output window and uncheck Thread Exit Messages.
http://msdn.microsoft.com/en-us/library/bs4c1wda.aspx
In addition to program out from your application, the Output window
can display the information about:
Modules the debugg...