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add get_security_file() function to utils.path...
add get_security_file() function to utils.path This makes it easier for third party tools to retrieve security files (e.g. json connection files) by name and [optional] profile name alone, without knowledge of IPython's directory structure. For example, whenever ipkernel outputs: ` --existing kernel-12345.json --profile foo` that file can be found with: get_security_file('kernel-12345.json', profile='foo')

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logtopics.rst
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Log Topic Specification

we use pyzmq to broadcast log events over a PUB socket. Engines, Controllers, etc. can all broadcast. SUB sockets can be used to view the logs, and ZMQ topics are used to help select out what to follow.

the PUBHandler object that emits the logs can ascribe topics to log messages. The order is:

<root_topic>.<loglevel>.<subtopic>[.<etc>]

root_topic is specified as an attribute