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How to perform .Max() on a property of all objects in a collection and return the object with maximu

...actly this in MoreLINQ. You can look at the implementation there, but basically it's a case of iterating through the data, remembering the maximum element we've seen so far and the maximum value it produced under the projection. In your case you'd do something like: var item = items.MaxBy(x => ...
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How to use permission_required decorators on django class-based views

...ing how the new CBVs work. My question is this, I need to require login in all the views, and in some of them, specific permissions. In function-based views I do that with @permission_required() and the login_required attribute in the view, but I don't know how to do this on the new views. Is there ...
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python NameError: global name '__file__' is not defined

... I had the same problem with PyInstaller and Py2exe so I came across the resolution on the FAQ from cx-freeze. When using your script from the console or as an application, the functions hereunder will deliver you the "execution path", not the "actual file pa...
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XPath - Selecting elements that equal a value

...the string value of an element as the concatenation (in document order) of all of its text-node descendents. This explains the "strange results". "Better" results can be obtained using the expressions below: //*[text() = 'qwerty'] The above selects every element in the document that has at lea...
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Why not inherit from List?

... What is the correct C# way of representing a data structure, which, "logically" (that is to say, "to the human mind") is just a list of things with a few bells and whistles? Ask any ten non-computer-programmer people who are familiar with the existence of football to fill in the blank: A foot...
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How to join strings in Elixir?

...your list size is arbitrary: Enum.join(["StringA", "StringB"], " ") ... all of the solutions above will return "StringA StringB" share | improve this answer | follow ...
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XPath: How to check if an attribute exists?

...u should use a more specific expression. But with [@attributeName] you get all nodes which have that attribute. share | improve this answer | follow | ...
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Getting number of elements in an iterator in Python

...ve an answer, this answer avoids instantiation of a list, and it is empirically faster by a constant than the reduce method listed above. – Phillip Nordwall Aug 2 '12 at 15:27 5 ...
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ImportError: Cannot import name X

...r different files named: main, vector, entity and physics. I will not post all the code, just the imports, because I think that's where the error is. (If you want, I can post more) ...
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How to disable python warnings

...lter("ignore") fxn() I don't condone it, but you could just suppress all warnings with this: import warnings warnings.filterwarnings("ignore") Ex: >>> import warnings >>> def f(): ... print('before') ... warnings.warn('you are warned!') ... print('after') >>> ...