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mitogen/econtext/__init__.py

34 lines
1.0 KiB
Python

"""
On the econtext master, this is imported from ``econtext/__init__.py`` as would
be expected. On the slave, it is built dynamically during startup.
"""
#: This is ``True`` in slave contexts. It is used in single-file Python
#: programs to avoid reexecuting the program's :py:func:`main` function in the
#: slave. For example:
#:
#: .. code-block:: python
#:
#: def do_work():
#: os.system('hostname')
#:
#: def main(broker):
#: context = econtext.master.connect(broker)
#: context.call(do_work) # Causes slave to import __main__.
#:
#: if __name__ == '__main__' and not econtext.slave:
#: import econtext.utils
#: econtext.utils.run_with_broker(main)
#:
slave = False
#: This is ``0`` in a master, otherwise it is a master-generated ID unique to
#: the slave context used for message routing.
context_id = 0
#: This is ``None`` in a master, otherwise it is the master-generated ID unique
#: to the slave's parent context.
parent_id = None