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How can I upgrade specific packages using pip and a requirements file?

...de Django to 1.2.4 - I was always finishing with 1.2.3 version, so I uninstalled Django with: <virtualenv>/bin/pip uninstall Django Then I removed <virtualenv>/build/Django directory and finally I installed the proper version with: <virtualenv>/bin/pip install Django ...
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Best practice for nested fragments in Android 4.0, 4.1 (

...previous fragment transaction has finished. And of course it was only naturally supported in 4.2 or the support library. Nesting without ChildManager - Solution Solution, Sure! I have been doing this for a long time now, (since the ViewPager was announced). See below; This is a Fragment that defe...
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How can i tell if an object has a key value observer attached

... Put a try catch around your removeObserver call @try{ [someObject removeObserver:someObserver forKeyPath:somePath]; }@catch(id anException){ //do nothing, obviously it wasn't attached because an exception was thrown } ...
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LINQ Using Max() to select a single row

I'm using LINQ on an IQueryable returned from NHibernate and I need to select the row with the maximum value(s) in a couple of fields. ...
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How to filter a dictionary according to an arbitrary condition function?

... And here is a good explanation why the function call dict() is slower than the constructor/literal syntax {} doughellmann.com/2012/11/… – dorvak Jul 10 '13 at 9:37 ...
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How to Query an NTP Server using C#?

All I need is a way to query an NTP Server using C# to get the Date Time of the NTP Server returned as either a string or as a DateTime . ...
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How to get a list of repositories apt-get is checking? [closed]

...y << current.repos.list Regarding getting repo from a package (installed or available), this will do the trick apt-cache policy package_name |grep -m1 http| awk '{ print $2 " " $3 }' However, that will show you the repository of the latest version available of that package, you may have m...
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How to convert Strings to and from UTF8 byte arrays in Java

... US-ASCII is actually not a very common encoding nowadays. Windows-1252 and ISO-8859-1 (which are supersets of ASCII) are far more widespread. – Michael Borgwardt Oct 9 '09 at 13:26 ...
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jQuery trigger file input

...e and top:-100px; and voilà it works. see http://jsfiddle.net/DSARd/1/ call it a hack. Hope that works for you. share | improve this answer | follow | ...
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Getting attributes of a class

...gt;> inspect.getmembers(MyClass, lambda a:not(inspect.isroutine(a))) [('__class__', type), ('__dict__', <dictproxy {'__dict__': <attribute '__dict__' of 'MyClass' objects>, '__doc__': None, '__module__': '__main__', '__weakref__': <attribute '__weakref__' of 'MyClass' obje...