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Programmatically change log level in Log4j2

...gurator.setLevel("com.example.Foo", Level.DEBUG); // You can also set the root logger: Configurator.setRootLevel(Level.DEBUG); Source EDITED to reflect changes in the API introduced in Log4j2 version 2.0.2 If you wish to change the root logger level, do something like this : LoggerContext ctx ...
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How to use “raise” keyword in Python [duplicate]

... exception chaining, it allows you to preserve the original exception (the root cause) with its traceback. It's very similar to inner exceptions from C#. More info: https://www.python.org/dev/peps/pep-3134/ share ...
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How are feature_importances in RandomForestClassifier determined?

... if normalizer > 0.0: # Avoid dividing by zero (e.g., when root is pure) importances /= normalizer return importances Try calculate the feature importance: print("sepal length (cm)",0) print("sepal width (cm)",(3*0.444-(0+0))) print("petal length (cm)",(54* 0.168 ...
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How do I delete a fixed number of rows with sorting in PostgreSQL?

I'm trying to port some old MySQL queries to PostgreSQL, but I'm having trouble with this one: 6 Answers ...
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How to make node.js require absolute? (instead of relative)

I would like to require my files always by the root of my project and not relative to the current module. 36 Answers ...
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How do I tell Git to ignore everything except a subdirectory?

... This ignores root files & root directories, then un-ignores the root bin directory: /* /*/ !/bin/ This way you get all of the bin directory, including subdirectories and their files. ...
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How to fix HTTP 404 on Github Pages?

...don't use Jekyll, the workaround is to place a file named .nojekyll in the root directory. share | improve this answer | follow | ...
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Custom UITableViewCell from nib in Swift

...rface file and name it MyCustomCell.xib. Add a UITableViewCell as the root of your xib file and any other visual components you want. Create a cocoa touch class file with class name MyCustomCell as a subclass of UITableViewCell. Set the custom class and reuse identifier for your cus...
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Accessing @attribute from SimpleXML

...e object corresponding the the right tag in your XML. Like if you have <root><tag attr="a">b</tag></root> then you need to do $xml->tag->attributes()->attr to access it. – zysoft Sep 12 '15 at 22:30 ...
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Logback to log different messages to two files

... <appender-ref ref="ANALYTICS-FILE"/> </logger> <root> <appender-ref ref="FILE"/> </root> </configuration> Then you'd setup two separate loggers, one for everything and one to log analytics data like so: Logger analytics = LoggerFactory.g...