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Does it lazy-create leaf dicts on access? It would be preferable if they were only created on assignment, and failed if it’s just a get. For example, if I cal

• Izkata 3y ago
  Code looks like it's on access, but I didn't test it.
• kzrdude 3y ago
  I don't think it's possible in Python to detect the difference between access or write (when it's nested attributes).
• heisenzombie 3y ago
  Yeah it does. If you do: x = dd() print(x.tyypo.a.b) you'll get "DotDict()" The problem is that an object can't know whether you're getting a node that you're later going to assign a leaf to... or whether you're getting the node because you want to get the node. x = dd() x.a.b.c = "Foo" is equivalent to: x = dd() y = x.a.b y.c = "Foo" So "x.a.b" can't raise an exception. Now, it's python, so you can do unholy things to make pretty much anything work. But I think it would be ugly.
  • samwillis 3y ago
    They could add a __bool__ method to the class the returns false when that level of the namespace is empty. That would allow: if a.b.c: print("c:", a.b.c)
    • rozab 3y ago
      The __contains__ method should be used (and indeed is). What if a.b.c = False?