Error occurred when raising TypeError in mapping function.

[HansBug]

Error occurred when raising TypeError in mapping function.

from treevalue import TreeValue, mapping


def f(x):
    raise TypeError


if __name__ == '__main__':
    t = TreeValue({'a': 1, 'b': 2, 'x': {'c': 3, 'd': 4}})
    t1 = mapping(t, f)

It will cause this wrong error now.

Traceback (most recent call last):
  File "test_p.py", line 10, in <module>
    t1 = mapping(t, f)
  File "treevalue/tree/tree/functional.pyx", line 47, in treevalue.tree.tree.functional.mapping
    cpdef TreeValue mapping(TreeValue tree, object func):
  File "treevalue/tree/tree/functional.pyx", line 77, in treevalue.tree.tree.functional.mapping
    return type(tree)(_c_mapping(tree._detach(), _ValuePathFuncWrapper(func), ()))
  File "treevalue/tree/tree/functional.pyx", line 42, in treevalue.tree.tree.functional._c_mapping
    _d_res[k] = func(v, curpath)
  File "treevalue/tree/tree/functional.pyx", line 20, in treevalue.tree.tree.functional._ValuePathFuncWrapper.__call__
    return self.func()
TypeError: f() missing 1 required positional argument: 'x'