Miscellaneous utilities

sage.structure.misc.is_extension_type(cls)

Return whether or not instances of cls have a __dict__.

This is deprecated as there should not be any use case for it.

INPUT:

• cls – a class

EXAMPLES:

sage: from sage.structure.misc import is_extension_type
doctest:...: DeprecationWarning: the module sage.structure.misc is deprecated
See https://trac.sagemath.org/27099 for details.
sage: is_extension_type(int)
True
sage: is_extension_type(list)
True
sage: is_extension_type(ZZ.__class__)
True
sage: is_extension_type(QQ.__class__)
False