Creating Edge objects doesn't work

[gdubicki]

The code at:

pypuppetdb/pypuppetdb/api.py

Lines 648 to 649 in 9905db5

	yield Edge(source=self.resources[identifier_source],
	target=self.resources[identifier_target],

...cannot work according to my knowledge (and my IDE) - resources is a method in BaseAPI.

A simple test script:

#!/usr/bin/env python3
from pypuppetdb import connect
from pypuppetdb.QueryBuilder import EqualsOperator

db = connect()
query = EqualsOperator('certname', 'puppetdb01.c.foobar.internal')
edges = db.edges(query=query)
for edge in edges:
    pass

...does in fact fail with:

Traceback (most recent call last):
  File "./test_edges.py", line 8, in <module>
    for edge in edges:
  File "/home/foobar/venv/lib/python3.6/site-packages/pypuppetdb/api.py", line 648, in edges
    yield Edge(source=self.resources[identifier_source],
TypeError: 'method' object is not subscriptable