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What is the most pythonic way to check if an object is a number?
... rather than the duck thing, is preferred when you're multiplying a vector by X. In this case you want to do different things based on what X is. (It might act as something that multiplies, but the result might be nonsensical.)
– Evgeni Sergeev
May 2 '15 at 5:3...
How to raise a ValueError?
...till works plus it illustrates how to raise a ValueError the way you want. By-the-way, I think find_last(), find_last_index(), or something simlar would be a more descriptive name for this function. Adding to the possible confusion is the fact that Python already has a container object method named ...
Why is '397' used for ReSharper GetHashCode override?
...e a math degree so I'm not going to try and explain it, but multiplication by a prime will have a result that's more well distributed than multiplication by any other arbitrary number.
– Ben Randall
Oct 14 '15 at 1:40
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Cron job every three days
...nt "every three days" to be. This will work on any day which is divisible by 3. On month boundaries it won't be exact.
– David
Dec 28 '10 at 21:14
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WKWebView in Interface Builder
... implies that you can't instantiate one from a nib.
You'll have to do it by hand in viewDidLoad or loadView.
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Add and remove multiple classes in jQuery
I'm trying to add and remove multiple classes on a text field by clicking different radio buttons. I'm not able to remove the unwanted classes while switching between different radio buttons.
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Deleting all pending tasks in celery / rabbitmq
...uck I kill the task, empty the queue, and try again. I detect "stuckness" by looking at the message count for the analytics queue, which should be 0 (finished analytics) or 1 (waiting for last night's analytics to finish). 2 or higher is bad, and I get an email.
celery purge offers to erase tasks...
What does PorterDuff.Mode mean in android graphics.What does it do?
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Here's an excellent article with illustrations by a Google engineer:
http://ssp.impulsetrain.com/porterduff.html
PorterDuff is described as a way of combining images as if they were "irregular shaped pieces of cardboard" overlayed on each other, as well as a scheme for ...
Determining the last changelist synced to in Perforce
...ded for things like injecting the changelist number into the revision info by the automatic build system.
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What is the difference between a reference type and value type in c#?
...ype - just like struct and enum are kinds of value types. What do you mean by int, bool being specific types? Everything in C# e.g. int, bool,float, class, interface, delegate is a type( data type to be precise). Data types are segregated as 'Reference Type' and 'Value Type' in C#. Then why are you ...