ipyparallel不允许我将对象推送到引擎

Question

尝试ipyparallel，并在将代码推送到我的引擎的最早阶段陷入困境。启动我的引擎：

ipcluster start -n 4

然后尝试将东西放在引擎上：

import ipyparallel as ipp
from scipy.interpolate import interp1d
import numpy as np

class supersimple:
    def __init__(self):
        self.dummy = 5
    def __call__(self, x):
        return self.dummy + x

def simplefunc(x):
    return x

if __name__ == '__main__':

    rc = ipp.Client()
    dview = rc[:]

    # Instatiate my class and put it on an engine
    myclass = supersimple()
    rc[0].push({'myclass': myclass})
    # Put my function on the engine
    rc[0].push({'simplefunc': simplefunc})

    # Put a scipy object on the engine
    x = np.arange(10)
    y = 3.+3.3*x
    otherobj = interp1d(x, y)
    rc[0].push({'otherobj': otherobj})

    # Check that everything is on the engine
    print(rc[0]['otherobj'])
    print(rc[0]['simplefunc'])
    print(rc[0]['myclass'])

结果：

<scipy.interpolate.interpolate.interp1d object at 0x117913b38>
<function simplefunc at 0x117923b70>

和

blah blah, boring traceback
ipyparallel.error.RemoteError: NameError(name 'myclass' is not defined)

所以，有两个问题： 1）如何让我的课程进入引擎？

（并不重要，但我很好奇）2）为什么当我尝试将东西推送到引擎并且它失败时，是否有任何错误？似乎奇怪的代码只是在没有做某事时说出一些麻烦。