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Clarify need for WeakSet

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blitzmann 2020-09-18 21:52:45 -04:00
parent 76c724c783
commit 0480edce2a
1 changed files with 2 additions and 1 deletions
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cps/db.py
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@ -413,9 +413,10 @@ class AlchemyEncoder(json.JSONEncoder):
class CalibreDB(): class CalibreDB():
_init = False _init = False
engine = None engine = None
log = None # todo: ??? this isn't used, and even then, not sure if it's supposed to be per session or what
config = None config = None
session_factory = None session_factory = None
# This is a WeakSet so that references here don't keep other CalibreDB
# instances alive once they reach the end of their respective scopes
instances = WeakSet() instances = WeakSet()
def __init__(self): def __init__(self):