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How to import a module given its name as string?

... Another problem with this solution, as Denis Malinovsky points out below, is that the python docs themselves recommend not using __import__. The 2.7 docs: "Because this function is meant for use by the Python interpreter and not for general use it is better to use importlib.import_module...
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Need a simple explanation of the inject method

... Thanks for writing out the steps. This helped a lot. Although I was a little confused about whether you mean that the diagram below is how the inject method is implemented underneath in terms of what's passed as arguments to inject. ...
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How do I clone a range of array elements to a new array?

...ContractSerializer, protobuf-net, etc. Note that deep clone is tricky without serialization; in particular, ICloneable is hard to trust in most cases. share | improve this answer | ...
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@synthesize vs @dynamic, what are the differences?

...ith subclasses of NSManagedObject (CoreData) or when you want to create an outlet for a property defined by a superclass that was not defined as an outlet. @dynamic also can be used to delegate the responsibility of implementing the accessors. If you implement the accessors yourself within the clas...
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How to check if a string starts with a specified string? [duplicate]

...e substr() approach is that strncmp() just does what needs to be done, without creating a temporary string. share | improve this answer | follow | ...
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What is the fastest way to check if a class has a function defined?

... So you can go ahead and have an expensive function that figures something out, but then when you call it over and over the subsequent calls are fast; the memoized version of the function looks up the arguments in a dict, finds the result in the dict from when the actual function computed the result...
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How can I remove non-ASCII characters but leave periods and spaces using Python?

...nk a bit, and edit your question to tell us what you are trying to do, without mentioning the word ASCII, and why you think that chars such that ord(char) >= 128 are ignorable. Also: which version of Python? What is the encoding of your input data? Please note that your code reads the whole inpu...
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Creating a custom JButton in Java

...value. I haven't experimented too much with this but, depending on the layout you use for your GUI your button could look completely different. And finally, the source code. In case I missed anything. share | ...
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How to “pretty” format JSON output in Ruby on Rails

I would like my JSON output in Ruby on Rails to be "pretty" or nicely formatted. 18 Answers ...
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Do I need to explicitly call the base virtual destructor?

... What about pure virtual destructors? My linker is trying to call it at the end of my inherited class's non-virtual destructor; – cjcurrie Feb 5 '13 at 5:42 ...