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Comparing two dictionaries and checking how many (key, value) pairs are equal

...ionaries, you should have said that :) Maybe something like this: shared_items = {k: x[k] for k in x if k in y and x[k] == y[k]} print len(shared_items) share | improve this answer | ...
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Running multiple commands with xargs

...gs -d $'\n' sh -c 'for arg do command1 "$arg"; command2 "$arg"; ...; done' _ ...or, without a Useless Use Of cat: <a.txt xargs -d $'\n' sh -c 'for arg do command1 "$arg"; command2 "$arg"; ...; done' _ To explain some of the finer points: The use of "$arg" instead of % (and the absence of...
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Why does SIGPIPE exist?

... changing global signal dispositions is to temporarily mask it with pthread_sigmask, perform the write, then perform sigtimedwait (with zero timeout) to consume any pending SIGPIPE signal (which is sent to the calling thread, not the process) before unmasking it again. I believe the reason SIGPIPE ...
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How to install the Raspberry Pi cross compiler on my Linux host machine?

...-gcc -v. You should get something like this: Using built-in specs. COLLECT_GCC=arm-linux-gnueabihf-gcc COLLECT_LTO_WRAPPER=/home/tudhalyas/raspberrypi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/../libexec/gcc/arm-linux-gnueabihf/4.7.2/lto-wrapper Target: arm-linux-gnueabihf Confi...
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Razor-based view doesn't see referenced assemblies

... In ASP.NET Core MVC the solution is to add a using in _ViewImports.cshtml, instead of putting it web.config in the View folder when working with ASP.NET MVC 5. _ViewImports.cshtml @using mySolution @using mySolution.ViewModels // <-- Add this, and place your ViewModel (e.g....
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Skip rows during csv import pandas

I'm trying to import a .csv file using pandas.read_csv() , however I don't want to import the 2nd row of the data file (the row with index = 1 for 0-indexing). ...
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Is it possible to ping a server from Javascript?

...dences on other parts of the source but you get the idea). function Pinger_ping(ip, callback) { if(!this.inUse) { this.inUse = true; this.callback = callback this.ip = ip; var _that = this; this.img = new Image(); this.img.onload = function() {_that.good();}; this...
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How do you UrlEncode without using System.Web?

...t; Uri "*" Data "*" '-' -> Uri "-" Data "-" '.' -> Uri "." Data "." '_' -> Uri "_" Data "_" '~' -> Uri "~" Data "~" '0' -> Uri "0" Data "0" ..... '9' -> Uri "9" Data "9" 'A' -> Uri "A" Data "A" ...... 'Z' -> Uri "Z" Data "Z" 'a' -> Uri "a" Data "a" ..... 'z' -> Uri "...
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UISegmentedControl below UINavigationbar in iOS 7

...WillAppear:(BOOL)animated { [super viewWillAppear:animated]; [self _moveHairline:YES]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; [self _moveHairline:NO]; } - (void)_moveHairline:(BOOL)appearing { // move the hairline below the segmentbar ...
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How do I inspect the view hierarchy in iOS?

... I've got: error: cannot find interface declaration for '$__lldb_objc_class' any ideas? (lldb) po [[UIWindow keyWindow] recursiveDescription] error: cannot find interface declaration for '$__lldb_objc_class' error: cannot find interface declaration for '$__lldb_objc_class' error:...