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Is there a NumPy function to return the first index of something in an array?

...eals naturally with multidimensional arrays: >>> arr1 = np.ones((100, 100, 100)) >>> arr1[2, 2, 2] = 2 >>> index(arr1, 2) (2, 2, 2) >>> arr2 = np.ones(20) >>> arr2[5] = 2 >>> index(arr2, 2) (5,) This can be much faster (because it's short-c...
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Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=3

...t;runtime> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> <dependentAssembly> <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30AD4FE6B2A6AEED" culture="neutral"/> <bindingRedirect oldVersion="0.0.0.0-6.0.0....
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What is the difference between “px”, “dip”, “dp” and “sp”?

...een space. If running on an hdpi device, a 150 x 150 px image will take up 100 * 100 dp of screen space. If running on an xhdpi device, a 150x150 px image will take up 75 * 75 dp of screen space. The other way around: say, you want to add an image to your application and you need it to fill a 100 ...
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Associating enums with strings in C#

...e extension model: public enum MyEnum { [Description("String 1")] V1= 1, [Description("String 2")] V2= 2 } Your Extension Class public static class MyEnumExtensions { public static string ToDescriptionString(this MyEnum val) { DescriptionAttribute[] attributes = ...
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How to install Google Play Services in a Genymotion VM (with no drag and drop support)?

...o the latest version. Download two zip files: - ARM Translation Installer v1.1 - Google Apps for your Android version: 2.3.7 - 4.4.4 or 4.4 - 6.0 (with platform and variant) You can also find the GApps list in the wbroek user GitHubGist page. Open Genymotion emulator and go to home screen then dra...
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Is it worth using Python's re.compile?

... I've had a lot of experience running a compiled regex 1000s of times versus compiling on-the-fly, and have not noticed any perceivable difference. Obviously, this is anecdotal, and certainly not a great argument against compiling, but I've found the difference to be negligible....
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data.table vs dplyr: can one do something well the other can't or does poorly?

...ncluding benchmarks by Matt on grouping from 10 million to 2 billion rows (100GB in RAM) on 100 - 10 million groups and varying grouping columns, which also compares pandas. See also updated benchmarks, which include Spark and pydatatable as well. On benchmarks, it would be great to cover these rem...
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Get java.nio.file.Path object from java.io.File

... As many have suggested, JRE v1.7 and above has File.toPath(); File yourFile = ...; Path yourPath = yourFile.toPath(); On Oracle's jdk 1.7 documentation which is also mentioned in other posts above, the following equivalent code is described in the de...
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Can someone explain how to implement the jQuery File Upload plugin?

...e of the upload var progress = parseInt(data.loaded / data.total * 100, 10); // Update the hidden input field and trigger a change // so that the jQuery knob plugin knows to update the dial data.context.find('input').val(progress).change(); if(progress == 10...
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How to retry after exception?

I have a loop starting with for i in range(0, 100) . Normally it runs correctly, but sometimes it fails due to network conditions. Currently I have it set so that on failure, it will continue in the except clause (continue on to the next number for i ). ...