Cython函数在Kaggle笔记本中返回错误的值

如何解决Cython函数在Kaggle笔记本中返回错误的值

我最近了解了cython，并试图在我的kaggle笔记本上对其进行测试。我在一个单元格中有以下代码：

%%cython
cpdef foo(int x):
    cdef bar
    bar = x**(x**9)
    return bar
print(foo(12))

虽然这应该返回一些怪物数字，但它会返回0，而当我将函数更改为bar = x**(x+1)时，会出现以下错误：

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-34-6b0330de29c7> in <module>
----> 1 get_ipython().run_cell_magic('cython','','cpdef foo(int x):\n    cdef bar\n    bar = x**(x+1)\n    return bar\nprint(foo(12))\n\n\n\n\n\n')

/opt/conda/lib/python3.7/site-packages/IPython/core/interactiveshell.py in run_cell_magic(self,magic_name,line,cell)
   2360             with self.builtin_trap:
   2361                 args = (magic_arg_s,cell)
-> 2362                 result = fn(*args,**kwargs)
   2363             return result
   2364 

<decorator-gen-130> in cython(self,cell)

/opt/conda/lib/python3.7/site-packages/IPython/core/magic.py in <lambda>(f,*a,**k)
    185     # but it's overkill for just that one bit of state.
    186     def magic_deco(arg):
--> 187         call = lambda f,**k: f(*a,**k)
    188 
    189         if callable(arg):

/opt/conda/lib/python3.7/site-packages/Cython/Build/IpythonMagic.py in cython(self,cell)
    349             return None
    350 
--> 351         module = imp.load_dynamic(module_name,module_path)
    352         self._import_all(module)
    353 

/opt/conda/lib/python3.7/imp.py in load_dynamic(name,path,file)
    340         spec = importlib.machinery.ModuleSpec(
    341             name=name,loader=loader,origin=path)
--> 342         return _load(spec)
    343 
    344 else:

/opt/conda/lib/python3.7/importlib/_bootstrap.py in _load(spec)

/opt/conda/lib/python3.7/importlib/_bootstrap.py in _load_unlocked(spec)

/opt/conda/lib/python3.7/importlib/_bootstrap.py in module_from_spec(spec)

/opt/conda/lib/python3.7/importlib/_bootstrap_external.py in create_module(self,spec)

/opt/conda/lib/python3.7/importlib/_bootstrap.py in _call_with_frames_removed(f,*args,**kwds)

ImportError: /root/.cache/ipython/cython/_cython_magic_b55c72433f8906b1db36ac770a0d81a7.cpython-37m-x86_64-linux-gnu.so: file too short

我尝试删除代码，并将此简化的函数编写到新的单元格中：

%%cython
cpdef some(int x):
    return (x**20 + x**9)
print(some(12))

，但这将返回-3162774878951833600，这是不可能的。我真的很困惑，很抱歉，如果以前曾问过这个问题，但我真的找不到任何与此相关的问题。