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Access nested dictionary items via a list of keys?

...ataDict, mapList): return reduce(operator.getitem, mapList, dataDict) and reuse getFromDict to find the location to store the value for setInDict(): def setInDict(dataDict, mapList, value): getFromDict(dataDict, mapList[:-1])[mapList[-1]] = value All but the last element in mapList is need...
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How do I add spacing between columns in Bootstrap?

...sistent so that all of your columns line up correctly. To get even spacing and column size I would do the following: <div class="row"> <div class="col-md-5"></div> <div class="col-md-5 col-md-offset-2"></div> </div> In Bootstrap 4 use: offset-2 or offset-md-2...
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HTML5 Canvas Resize (Downscale) Image High Quality?

... : to build the smaller image, they will just pick ONE pixel in the source and use its value for the destination. which 'forgets' some details and adds noise. Yet there's an exception to that : since the 2X image downsampling is very simple to compute (average 4 pixels to make one) and is used fo...
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Creating and throwing new exception

How I can create and throw a new exception in PowerShell? 1 Answer 1 ...
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How to pass a URI to an intent?

...re the uri as string intent.putExtra("imageUri", imageUri.toString()); and then just convert the string back to uri like this Uri myUri = Uri.parse(extras.getString("imageUri")); share | impro...
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undefined reference to boost::system::system_category() when compiling

...do.) Assuming you use gcc, try adding -lboost_system to your compiler command line in order to link against that library. share | improve this answer | follow ...
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Spring Boot: How can I set the logging level with application.properties?

...config file (log4j.xml or logback.xml) to the src/main/resources directory and configure to your liking. You can enable debug logging by specifying --debug when starting the application from the command-line. Spring Boot provides also a nice starting point for logback to configure some defaults, col...
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Strings as Primary Keys in SQL Database [closed]

I am not very familiar with databases and the theories behind how they work. Is it any slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers? ...
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Git: can I suppress listing of 'modified content'/dirty submodule entries in status, diff, etc?

...module within the .gitmodules file. Just today I encountered this problem and immediately wrote an article in my blog about it after finding a solution: How to ignore changes in git submodules The gist of it: Once you added a submodule there will be a file named .gitmodules in the root of your...
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Could not open a connection to your authentication agent

...h-agent? You might need to start ssh-agent before you run the ssh-add command: eval `ssh-agent -s` ssh-add Note that this will start the agent for msysgit Bash on Windows. If you're using a different shell or operating system, you might need to use a variant of the command, such as those listed ...