On 4/1/21 5:50 AM, Alexey wrote:
Found it. As I said before the problem was lurking in the cache. Few days ago I read about circular references and things like that and I thought to myself that it might be the case. To build the cache I was using lots of 'setdefault' methods chained together self.__cache.setdefault(cluster_name, {}).setdefault(database_name, {})... and instead of wring a long lines I decided to divide it to increase readability cluster = self.__cache.setdefault(cluster_name, {}) database = database.setdefault(database_name, {}) ... and I guess that was the problem.
I guess it is worth mentioning here that there are people who feel you shouldn't use setdefault() this way. setdefault is primarily a "getter", which has the side effect of filling in dict entry if one did not exist before returning it, and there some folks feel that using it primarily as a "setter" is abusing the interface...
Do with that what you will :) -- https://mail.python.org/mailman/listinfo/python-list