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How to check if a python module exists without importing it

... After a year I came across the same problem I mentioned just above and was digging for a solution for Python 2: pkgutil.find_loader("my.package.module") returns a loader if the package/module exists and None if not. Please update your answer for Python 2, as masking the ImportError drove me ...
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How to import a module given the full path?

...rom_spec(spec) spec.loader.exec_module(foo) foo.MyClass() For Python 3.3 and 3.4 use: from importlib.machinery import SourceFileLoader foo = SourceFileLoader("module.name", "/path/to/file.py").load_module() foo.MyClass() (Although this has been deprecated in Python 3.4.) For Python 2 use: im...
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What optimizations can GHC be expected to perform reliably?

...ut I don't know what they all are, nor how likely they are to be performed and under what circumstances. 3 Answers ...
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What are some good Python ORM solutions? [closed]

I'm evaluating and looking at using CherryPy for a project that's basically a JavaScript front-end from the client-side (browser) that talks to a Python web service on the back-end. So, I really need something fast and lightweight on the back-end that I can implement using Python that then speaks to...
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Where do “pure virtual function call” crashes come from?

...e general case can't catch it since the flow from the ctor can go anywhere and anywhere can call the pure virtual function. This is Halting problem 101. – shoosh Sep 19 '08 at 4:20 ...
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Label Alignment in iOS 6 - UITextAlignment deprecated

... It's possible that the enum MAY change at some time in the future and cause unexpected results. That's all. No doomsday scenario in this case, but better practices should prevail. – Brenden Nov 2 '12 at 19:36 ...
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ARC and bridged cast

...ained <CFType>) op or alternatively CFBridgingRetain(op) is used to hand an NSObject over to CF-land while giving it a +1 retain count. You should handle a CFTypeRef you create this way the same as you would handle a result of CFStringCreateCopy(). This could also be represented by CFRetain((_...
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How to create a new database after initally installing oracle database 11g Express Edition?

I have installed Oracle Database 11g Express Edition on my pc (windows 7) and I have installed Oracle SQL Developer as well. ...
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Given a view, how do I get its viewController?

...r, because that would break MVC principles. The controller, on the other hand, knows which view it's responsible for (self.view = myView), and usually, this view delegates methods/events for handling to the controller. Typically, instead of a pointer to your view, you should have a pointer to your...
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Use numpy array in shared memory for multiprocessing

...he multiprocessing module. The difficulty is using it like a numpy array, and not just as a ctypes array. 5 Answers ...