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Python iterators considered harmful
I just tracked down a nasty bug in my code to a gotcha with Python iterators. Consider the following code... class Numbers(list): def even(self): for val in self: if val % 2 == 0: …
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gotcha
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Python property gotcha
If you like using a single getter/setter function for your properties, watch out if using None for the default. If you do that you won't be able to set your property to None! …
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Prevent double click on form submission
Recently I've been going over the Hub logs and fixing issues which have caused exceptions to be raised in the application. One in particular had me stumped for a while. An …