pretty.py 文件源码

def _type_pprint(obj, p, cycle):
    """The pprint for classes and types."""
    # Heap allocated types might not have the module attribute,
    # and others may set it to None.

    # Checks for a __repr__ override in the metaclass. Can't compare the
    # type(obj).__repr__ directly because in PyPy the representation function
    # inherited from type isn't the same type.__repr__
    if [m for m in _get_mro(type(obj)) if "__repr__" in vars(m)][:1] != [type]:
        _repr_pprint(obj, p, cycle)
        return

    mod = _safe_getattr(obj, '__module__', None)
    try:
        name = obj.__qualname__
        if not isinstance(name, str):
            # This can happen if the type implements __qualname__ as a property
            # or other descriptor in Python 2.
            raise Exception("Try __name__")
    except Exception:
        name = obj.__name__
        if not isinstance(name, str):
            name = '<unknown type>'

    if mod in (None, '__builtin__', 'builtins', 'exceptions'):
        p.text(name)
    else:
        p.text(mod + '.' + name)