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How to use a custom comparison function in Python 3?
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Use the key argument (and follow the recipe on how to convert your old cmp function to a key function).
functools has a function cmp_to_key mentioned at docs.python.org/3.6/library/functools.html#functools.cmp_to_key
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How does the vim “write with sudo” trick work?
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In :w !sudo tee %...
% means "the current file"
As eugene y pointed out, % does indeed mean "the current file name", which is passed to tee so that it knows which file to overwrite.
(In substitution commands, it's slightly different; as :help :% ...
How to get first record in each group using Linq
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var res = from element in list
group element by element.F1
into groups
select groups.OrderBy(p => p.F2).First();
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Closing Hg Branches
When using hg branch FeatureBranchName and publishing it to a central repo that is shared amongst developers, is there a way to eventually close the FeatureBranchName when its development has officially been merged with the default branch?
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Count lines of code in all java classes in Android Studio
...c
and install the latest version
To install
Run Android Studio
From the menu bar, select File-->Settings
Under IDE Settings, click Plugins, and then click Install plugin from disk
Navigate to the folder where you downloaded the plugin and double-click it
Restart Android Studio
To count the l...
What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?
In Java you can suspend the current thread's execution for an amount of time using Thread.sleep() . Is there something like this in Objective-C?
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AngularJS: ng-repeat list is not updated when a model element is spliced from the model array
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Whenever you do some form of operation outside of AngularJS, such as doing an Ajax call with jQuery, or binding an event to an element like you have here you need to let AngularJS know to update itself. Here is the code change you need to do:
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How to dynamically build a JSON object with Python?
...ith JSON data. I would like to dynamically build a JSON object by adding some key-value to an existing JSON object.
5 Answe...
Flatten nested dictionaries, compressing keys
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Basically the same way you would flatten a nested list, you just have to do the extra work for iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step.
import collections
def fla...
How could I use requests in asyncio?
... @scoarescoare That's where the 'if you do it right' part comes in - the method you run in the executor should be self-contained ((mostly) like requests.get in the above example). That way you don't have to deal with shared memory, locking, etc., and the complex parts of your program ...