Init

im going to bed -=-

lib/invoke/vendor/lexicon/__init__.py

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+from ._version import __version_info__, __version__  # noqa
+from .attribute_dict import AttributeDict
+from .alias_dict import AliasDict
+
+
+class Lexicon(AttributeDict, AliasDict):
+    def __init__(self, *args, **kwargs):
+        # Need to avoid combining AliasDict's initial attribute write on
+        # self.aliases, with AttributeDict's __setattr__. Doing so results in
+        # an infinite loop. Instead, just skip straight to dict() for both
+        # explicitly (i.e. we override AliasDict.__init__ instead of extending
+        # it.)
+        # NOTE: could tickle AttributeDict.__init__ instead, in case it ever
+        # grows one.
+        dict.__init__(self, *args, **kwargs)
+        dict.__setattr__(self, "aliases", {})
+
+    def __getattr__(self, key):
+        # Intercept deepcopy/etc driven access to self.aliases when not
+        # actually set. (Only a problem for us, due to abovementioned combo of
+        # Alias and Attribute Dicts, so not solvable in a parent alone.)
+        if key == "aliases" and key not in self.__dict__:
+            self.__dict__[key] = {}
+        return super(Lexicon, self).__getattr__(key)