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| -rw-r--r-- | pym/portage/cache/mappings.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pym/portage/cache/mappings.py b/pym/portage/cache/mappings.py index 118592597..c09760fb0 100644 --- a/pym/portage/cache/mappings.py +++ b/pym/portage/cache/mappings.py @@ -105,6 +105,17 @@ class LazyLoad(UserDict.DictMixin): _slot_dict_classes = weakref.WeakValueDictionary() def slot_dict_class(keys): + """ + Generates mapping classes that behave similar to a dict but store values + as object attributes that are allocated via __slots__. Instances of these + objects have a smaller memory footprint than a normal dict object. + + @param keys: Fixed set of allowed keys + @type keys: iterable + @rtype: SlotDict + @returns: A class that constructs SlotDict instances + having the specified keys. + """ if isinstance(keys, frozenset): keys_set = keys else: |