类型错误：无法腌制 PyCapsule 对象

I use dill将 ML 模型保存到文件。

当我运行测试时python -m unittest有用。但是如果我尝试运行测试python setup.py test它出现错误TypeError: can't pickle PyCapsule objects在原始中我尝试保存模型。

我在 setup.py 中进行测试的设置：

test_suite='tests', tests_require=['pytest']

Error:

  File "/Users/anna/anaconda3/lib/python3.6/site-packages/dill/_dill.py", line 1055, in save_builtin_method
    pickler.save_reduce(_get_attr, (module, obj.__name__), obj=obj)
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 610, in save_reduce
    save(args)
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 476, in save
    f(self, obj) # Call unbound method with explicit self
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 736, in save_tuple
    save(element)
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 476, in save
    f(self, obj) # Call unbound method with explicit self
  File "/Users/anna/anaconda3/lib/python3.6/site-packages/dill/_dill.py", line 1260, in save_module
    state=_main_dict)
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 634, in save_reduce
    save(state)
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 476, in save
    f(self, obj) # Call unbound method with explicit self
  File "/Users/anna/anaconda3/lib/python3.6/site-packages/dill/_dill.py", line 893, in save_module_dict
    StockPickler.save_dict(pickler, obj)
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 821, in save_dict
    self._batch_setitems(obj.items())
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 847, in _batch_setitems
    save(v)
  File "/Users/anna/anaconda3/lib/python3.6/pickle.py", line 496, in save
    rv = reduce(self.proto)
TypeError: can't pickle PyCapsule objects

你能帮我知道为什么它不起作用吗？

I'm the dill作者。这是一个已知的开放问题dill. See: https://github.com/uqfoundation/dill/issues/106。本质上，序列化函数PyCapsule对象尚未注册dill.

Update: As of https://github.com/uqfoundation/dill/pull/477 PyCapsule现在已支持。