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Creating an empty Pandas DataFrame, then filling it?

...utocompletion), but that works with strings as date format, right? The overall approach works though (I changed index to something else). – Matthias Kauer Dec 15 '12 at 8:42 ...
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Android: failed to convert @drawable/picture into a drawable

In my drawable folder I have a few images and they all reference perfect, but when I try and add any more images with the exact same size in the same folder, and try to reference it, is flags up an error "Failed to convert @drawable/picture into a drawable" . I have tried the same image with a diff...
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Python: How do I make a subclass from a superclass?

... # Initialize using Parent # class MySubClass(MySuperClass): def __init__(self): MySuperClass.__init__(self) Or, even better, the use of Python's built-in function, super() (see the Python 2/Python 3 documentation for it) may be a slightly better method of calling the parent for ...
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Get item in the list in Scala?

... Use parentheses: data(2) But you don't really want to do that with lists very often, since linked lists take time to traverse. If you want to index into a collection, use Vector (immutable) or ArrayBuffer (mutable) or possibly Array (which is just a Java array, exc...
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PHP - Move a file into a different folder on the server

I need to allow users on my website to delete their images off the server after they have uploaded them if they no longer want them. I was previously using the unlink function in PHP but have since been told that this can be quite risky and a security issue. (Previous code below:) ...
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Is there a short contains function for lists?

...her have said, you may also be interested to know that what in does is to call the list.__contains__ method, that you can define on any class you write and can get extremely handy to use python at his full extent.   A dumb use may be: >>> class ContainsEverything: def __init__(self):...
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Python executable not finding libpython shared library

I am installing Python 2.7 on CentOS 5. I built and installed Python as follows 9 Answers ...
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How do I make calls to a REST api using C#?

...and this thread is one of the top results when doing a Google search for "call restful service c#". Current guidance from Microsoft is to use the Microsoft ASP.NET Web API Client Libraries to consume a RESTful service. This is available as a NuGet package, Microsoft.AspNet.WebApi.Client. You will n...
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WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings

... RoutedCommand I've defined. The associated CommandBinding provides a callback for the evaluation of CanExecute which controls the enabled state of each MenuItem . ...
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Measuring elapsed time with the Time module

... start_time = time.time() # your code elapsed_time = time.time() - start_time You can also write simple decorator to simplify measurement of execution time of various functions: import time from functools import wraps PROF_DATA...