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How to filter a dictionary according to an arbitrary condition function?
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Nowadays, in Python 2.7 and up, you can use a dict comprehension:
{k: v for k, v in points.iteritems() if v[0] < 5 and v[1] < 5}
And in Python 3:
{k: v for k, v in points.items() if v[0] < 5 and v[1] < 5}
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Why do I need to do `--set-upstream` all the time?
...t branch. Or, to push to the current branch to a branch of the same name (handy for an alias):
git push -u origin HEAD
You only need to use -u once, and that sets up the association between your branch and the one at origin in the same way as git branch --set-upstream does.
Personally, I think i...
How to handle code when app is killed by swiping in android?
If my app is running and i press home button, the app goes in background. Now if a long press the home button and kill the app by swiping it from the recent app list, none of the events like onPause() , onStop() or onDestroy() gets called rather the process is terminated. So if i want my servic...
What is the difference between `after_create` and `after_save` and when to use which?
Are after_create and after_save the same as per functionality?
3 Answers
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Difference between android.app.Fragment and android.support.v4.app.Fragment
What is the difference between android.app.Fragment and android.support.v4.app.Fragment , and what are the circumstances in which each should be used?
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How to test if a string is basically an integer in quotes using Ruby
...!!(str =~ /^[-+]?[0-9]+$/) would do that. Then you could add it to String and leave out the argument, using "self" instead of "str", and then you could change the name to "is_i?" ...
– janm
Aug 5 '09 at 22:16
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How to make IPython notebook matplotlib plot inline
I am trying to use IPython notebook on MacOS X with Python 2.7.2 and IPython 1.1.0.
10 Answers
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Grab a segment of an array in Java without creating a new array on heap
... of an array. An example would be to get the byte array containing the 4th and 5th bytes of a byte array. I don't want to have to create a new byte array in the heap memory just to do that. Right now I have the following code:
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jQuery's .click - pass parameters to user function
...f the functionality introduced in version 1.4.3 of the jQuery click event handler.
It allows you to pass a data map to the event object that automatically gets fed back to the event handler function by jQuery as the first parameter. The data map would be handed to the .click() function as the first...
How to fix 'sudo: no tty present and no askpass program specified' error?
...ile some sources using a makefile. In the makefile there is a bunch of commands that need to be ran as sudo .
26 Answers
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