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background function in Python

...em is. I've got a function that downloads the image needed and saves it locally. Right now it's run inline with the code that displays a message to the user, but that can sometimes take over 10 seconds for non-local images. Is there a way I could call this function when it's needed, but run it in t...
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How can i query for null values in entity framework?

...g this bug! For backwards compatibility, it will be opt-in - you need manually enable a setting to make entry == value work. No word yet on what this setting is. Stay tuned! Edit 2: According to this post by the EF team, this issue has been fixed in EF6! Woohoo! We changed the default be...
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How to get name of exception that was caught in Python?

...n't want to catch particular exceptions known in advance. I want to catch all exceptions. – Rob Bednark Apr 27 '18 at 16:10 add a comment  |  ...
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Using Django time/date widgets in custom form

...e many hacks required, probably ought to caution you against doing this at all. It's relying on undocumented internal implementation details of the admin, is likely to break again in future versions of Django, and is no easier to implement than just finding another JS calendar widget and using that....
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UIButton Image + Text IOS

... I see very complicated answers, all of them using code. However, if you are using Interface Builder, there is a very easy way to do this: Select the button and set a title and an image. Note that if you set the background instead of the image then the ima...
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What's a correct and good way to implement __hash__()?

...be integers, and there aren't too many of them, I suppose you could potentially run slightly faster with some home-rolled hash, but it likely wouldn't be as well distributed. hash((self.attr_a, self.attr_b, self.attr_c)) is going to be surprisingly fast (and correct), as creation of small tuples is ...
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Run function from the command line

...ral answer. I have a script defined multiple customer functions, and only call one depending on my need – xappppp Apr 15 '18 at 4:16 1 ...
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Underscore: sortBy() based on multiple attributes

... said, that's pretty hacky. To do this properly you'd probably want to actually use the core JavaScript sort method: patients.sort(function(x, y) { var roomX = x[0].roomNumber; var roomY = y[0].roomNumber; if (roomX !== roomY) { return compare(roomX, roomY); } return compare(x[0].name...
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How do I loop through or enumerate a JavaScript object?

...uilt-in key-value pairs that have meta-information. When you loop through all the key-value pairs for an object you're looping through them too. hasOwnPropery() filters these out. – danieltalsky Jan 27 '12 at 15:56 ...
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Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [

... threads each: then at a given moment no more than 4*768 threads will be really running in parallel (if you planned more threads, they will be waiting their turn). Software threads are organized in blocks. A block is executed by a multiprocessing unit. The threads of a block can be indentified (in...