Module: parallel.apps.baseapp

The Base Application class for IPython.parallel apps

Authors:

• Brian Granger
• Min RK

3 Classes

class IPython.parallel.apps.baseapp.PIDFileError

Bases: exceptions.Exception

class IPython.parallel.apps.baseapp.ParallelCrashHandler(app)

Bases: IPython.core.crashhandler.CrashHandler

sys.excepthook for IPython itself, leaves a detailed report on disk.

__init__(app)

class IPython.parallel.apps.baseapp.BaseParallelApplication(**kwargs)

Bases: IPython.core.application.BaseIPythonApplication

The base Application for IPython.parallel apps

Principle extensions to BaseIPyythonApplication:

• work_dir
• remote logging via pyzmq
• IOLoop instance

crash_handler_class

alias of ParallelCrashHandler

get_pid_from_file()

Get the pid from the pid file.

If the pid file doesn’t exist a PIDFileError is raised.

initialize(argv=None)

initialize the app

remove_pid_file()

Remove the pid file.

This should be called at shutdown by registering a callback with reactor.addSystemEventTrigger(). This needs to return None.

write_pid_file(overwrite=False)

Create a .pid file in the pid_dir with my pid.

This must be called after pre_construct, which sets self.pid_dir. This raises PIDFileError if the pid file exists already.