Synopsis

Dagopoly: Directed Acyclic Graph Merchant

Etymology

Dag, for "Directed Acyclic Graph", plus "opoly" from Ancient Greek πωλέω (pōleō, "I barter, sell")

See also: https://www.wordnik.com/words/monopoly

Running tests

python -m unittest discover test/micro

Running a minimal standalone example

python test/autobin/test1.py 

On logging

The library does not couple to any logging mechanism. Instead, we can register a listener to recieve structured events. If you would like to couple the structure events to the python logging mechanism, add this to your application:

from dagopoly.micro.emit import add_emit_listener
import logging
logging.basicConfig(level=logging.DEBUG)
def on_event(msg):
    kmsg=msg[0]
    if kmsg=='warning':
        logging.warning(msg[1:])
    else:
        logging.info(msg[1:])
add_emit_listener(on_event)

For example, adding this to test/autobin/test1.py produces the following output:

count_to_n=<class 'dagopoly.micro.block.count_to_n'>
INFO:root:['computing', ['v0.0', 'count_to_n', 10]]
count_to_n.get()=[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
INFO:root:['computing', ['v0.0', 'square', ['v0.0', 'count_to_n', 10]]]
INFO:root:['remembering', ['v0.0', 'count_to_n', 10], 'derived/0910a7f76852aa2f6040f1daf9b1bfac4996ba76']
calculated 10 results

Take care not to throw an unhandled exception in the handler.