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Catching an exception while using a Python 'with' statement
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What does do?
... release of Internet Explorer supported a higher compatibility mode, pages set to edge mode would appear in the highest mode supported by that version. Those same pages would still appear in IE9 mode when viewed with Internet Explorer 9.
Internet Explorer supports a number of document compatibilit...
Numbering rows within groups in a data frame
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another data.table method is setDT(df)[, id:=rleid(val), by=.(cat)]
– chinsoon12
May 23 '18 at 0:14
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Method Syntax in Objective-C
...ver, it is only 1/2 of the method name. A better example may be [myObject setX:foo Y:bar], where the method is setX:Y:.
– locriani
Mar 25 '09 at 21:20
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Threading in a PyQt application: Use Qt threads or Python threads?
...text of a QT thread still acquires the GIL, and now you have to manage two sets of logic for locking your code.
In the end, both QT threads and Python threads are wrappers around system threads. Python threads are marginally safer to use, since those parts that are not written in Python (implicitly...
Asserting successive calls to a mock method
...re two main differences. The first one is that when mocking a function we setup our expected calls using call, instead of using call.some_method. The second one is that we call assert_has_calls on mock_work_function, instead of on mock_work_function.return_value.
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When is “i += x” different from “i = i + x” in Python?
...'t rebind the result… so i=1; operator.iadd(i, 1) returns 2 and leaves i set to 1. Which is a bit confusing.
– abarnert
Mar 13 '13 at 3:34
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Easiest way to convert a List to a Set in Java
What is the easiest way to convert a List to a Set in Java?
16 Answers
16
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Iterate keys in a C++ map
...osed to be fast and not allocate anything. Also, it will be slow for large sets.
– Kevin Chen
Nov 14 '18 at 22:29
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What is the purpose of flush() in Java streams?
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