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What are some (concrete) use-cases for metaclasses?

...Having said that, Python 3.6 introduced the much simpler init_subclass, so now you can manipulate subclasses in a baseclass, and no longer need a metaclass for that purpose. – Dan Gittik Jun 10 '18 at 20:38 ...
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What are these ^M's that keep showing up in my files in emacs?

... For clarification: Mac used CR until version 10 (OS X), now it uses LF. – Mikael S Nov 30 '09 at 22:32 34 ...
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Just what is Java EE really? [closed]

...ely installable as packages. Perhaps one day many or even all classes that now make up Java EE will be such package as well. Time will tell. Why are there so many Java EE offerings when there is really only two main flavors of standard Java (Oracle JVM/SDK | OpenJDK JVM/JDK)? There are more than j...
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This type of CollectionView does not support changes to its SourceCollection from a thread different

... mistaken, in WPF 4.5, you should be able to do this without any problem. Now to solve this, you should use the synchronization context. Before you launch the thread, you have to store the synchronization context in the ui thread. var uiContext = SynchronizationContext.Current; Then you use it i...
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Run batch file as a Windows service

... do you know if there is a way to give nssm all the necessary args at input to avoid the popup data entry -- i am trying to automate the process ? – amphibient Dec 22 '17 at 22:17 ...
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How do you determine the ideal buffer size when using FileInputStream?

...k reads - but those reads will always use a full block - no wasted reads. Now, this is offset quite a bit in a typical streaming scenario because the block that is read from disk is going to still be in memory when you hit the next read (we are doing sequential reads here, after all) - so you wind ...
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Populating a razor dropdownlist from a List in MVC

...s: SelectListItem SelectList Constructor (IEnumerable, String, String) Now that the viewmodel is created the presentation logic is simplified View: @model UserRoleViewModel @Html.LabelFor(m => m.SelectedUserRoleId) @Html.DropDownListFor(m => m.SelectedUserRoleId, Model.UserRoles) Refe...
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Javascript regex returning true.. then false.. then true.. etc [duplicate]

... end. [a-z0-9_-] Whether that would cause this problem or not, I don't know. Additional notes: The first and last characters are allowed to be any character that isn't - or _ rather than being restricted to a-z0-9 a-z0-9 doesn't include uppercase characters. You need a-zA-Z0-9 for that. a-zA-...
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Live-stream video from one android phone to another over WiFi

I have searched the internet for days now on how to implement a video streaming feature from an android phone to another android phone over a WiFi connection but I can't seem to find anything useful. I looked on android developers for sample code, stackoverflow, google, android blogs but nothing. Al...
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Reverse colormap in matplotlib

I would like to know how to simply reverse the color order of a given colormap in order to use it with plot_surface. 7 Answ...