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How to get the currently logged in user's user id in Django?

...rs = [{user.id: user.get_name()} for user in logged_in_users] # Query all logged in staff users based on id list all_staff_users = CustomUser.objects.filter(is_resident=False, is_active=True, is_superuser=False) logged_out_users = list() # for some reason exclude() would not work co...
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Sanitizing strings to make them URL and filename safe?

...For example, when someone uploads a file I want to make sure that I remove all dangerous characters from the name. 23 Answe...
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Generate a heatmap in MatPlotLib using a scatter data set

...50 heatmap. If you want, say, 512x384, you can put bins=(512, 384) in the call to histogram2d. Example: share | improve this answer | follow | ...
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jQuery Validate Plugin - Trigger validation of single field

I've got a form that can optionally be pre-populated via facebook connect. Once a user connects, their name and email are automatically filled in. The problem is that this doesn't trigger the remote validation to check if the email already exists. ...
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open read and close a file in 1 line of code

... You don't really have to close it - Python will do it automatically either during garbage collection or at program exit. But as @delnan noted, it's better practice to explicitly close it for various reasons. So, what you can do to keep ...
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Loop through properties in JavaScript object with Lodash

.../lodash.com/docs#forOwn Note that forOwn checks hasOwnProperty, as you usually need to do when looping over an object's properties. forIn does not do this check. share | improve this answer ...
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RegEx for Javascript to allow only alphanumeric

I need to find a reg ex that only allows alphanumeric. So far, everyone I try only works if the string is alphanumeric, meaning contains both a letter and a number. I just want one what would allow either and not require both. ...
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Adding a cross-reference to a subheading or anchor in another page

... because it works across files, when section headings are changed, and for all builders that support cross-references. RST, in General The tools that convert RST files to HTML do not necessarily have a notion of collection. This is the case for instance if you rely on github to convert RST files ...
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Programmatically get the cache line size?

All platforms welcome, please specify the platform for your answer. 8 Answers 8 ...
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Check if all elements in a list are identical

... = next(iterator) except StopIteration: return True return all(first == rest for rest in iterator) One-liner: def checkEqual2(iterator): return len(set(iterator)) <= 1 Also one-liner: def checkEqual3(lst): return lst[1:] == lst[:-1] The difference between the 3 versi...