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Formatting floats without trailing zeros

...is: '%g'%(3.140) or, for Python 2.6 or better: '{0:g}'.format(3.140) From the docs for format: g causes (among other things) insignificant trailing zeros [to be] removed from the significand, and the decimal point is also removed if there are no remaining digits following it. ...
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Random number generator only generating one random number

... the internal state of the Random instance. If we do that at the same time from multiple threads, you could argue "we've just made the outcome even more random", but what we are actually doing is potentially breaking the internal implementation, and we could also start getting the same numbers from ...
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Using IPython notebooks under version control

...e.ipynb, although it would at least keep git diff notebook_file.ipynb free from base64 garbage). that said, incidentally if you do pull code (i.e. committed by someone else not using this approach) which contains some output, the output is checked out normally. Only the locally produced output is lo...
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“android.view.WindowManager$BadTokenException: Unable to add window” on buider.show()

From my main activity , I need to call an inner class and in a method within the class, I need to show AlertDialog . After dismissing it, when the OK button is pressed, forward to Google Play for purchase. ...
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What is managed or unmanaged code in programming?

... Here is some text from MSDN about unmanaged code. Some library code needs to call into unmanaged code (for example, native code APIs, such as Win32). Because this means going outside the security perimeter for managed code, due caution is ...
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How to Get a Layout Inflater Given a Context?

... You can use the static from() method from the LayoutInflater class: LayoutInflater li = LayoutInflater.from(context); share | improve this answ...
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Ruby on Rails - Import Data from a CSV file

I would like to import data from a CSV file into an existing database table. I do not want to save the CSV file, just take the data from it and put it into the existing table. I am using Ruby 1.9.2 and Rails 3. ...
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In Docker, what's the difference between a container and an image? [duplicate]

...ile to stick around when you exit and restart the image. You're restarting from exactly the same defined state as you started in before, not where you left off. $ docker run -i -t ubuntu /bin/bash root@abf181be4379:/# ls bin boot dev etc home lib lib64 media mnt opt proc root run sbin...
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How to mock ConfigurationManager.AppSettings with moq

...ppSettings["User"]; } } } (You can just extract an interface from your configuration class and then use that interface everywhere in your code) Then you just mock the IConfiguration. You might be able to implement the facade itself in a few different ways. Above I chose just to wrap th...
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How do I keep Python print from adding newlines or spaces? [duplicate]

... You can from __future__ import print_function in Python 2.6 – jfs Nov 2 '08 at 18:10 14 ...