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Diffstat (limited to 'jinja2/_compat.py')
| -rw-r--r-- | jinja2/_compat.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/jinja2/_compat.py b/jinja2/_compat.py index 5d4fba5..2a0e6ed 100644 --- a/jinja2/_compat.py +++ b/jinja2/_compat.py @@ -82,6 +82,15 @@ except NameError: def with_metaclass(meta, *bases): + # This requires a bit of explanation: the basic idea is to make a + # dummy metaclass for one level of class instanciation that replaces + # itself with the actual metaclass. Because of internal type checks + # we also need to make sure that we downgrade the custom metaclass + # for one level to something closer to type (that's why __call__ and + # __init__ comes back from type etc.). + # + # This has the advantage over six.with_metaclass in that it does not + # introduce dummy classes into the final MRO. class __metaclass__(meta): __call__ = type.__call__ __init__ = type.__init__ |