1.参考资料

课程地址：
http://zh.gluon.ai/chapter_gluon-basics/custom-layer.html#%E5%B8%A6%E6%A8%A1%E5%9E%8B%E5%8F%82%E6%95%B0%E7%9A%84%E8%87%AA%E5%AE%9A%E4%B9%89%E5%B1%82

image.png
其中在In[7]中报错：

/home/deeplearning/anaconda3/bin/python /home/deeplearning/PycharmProjects/pyworker/com/xiuhong/mxnet/gression/demo.py
/home/deeplearning/anaconda3/lib/python3.6/site-packages/urllib3/contrib/pyopenssl.py:46: DeprecationWarning: OpenSSL.rand is deprecated - you should use os.urandom instead
import OpenSSL.SSL
Traceback (most recent call last):
File “/home/deeplearning/PycharmProjects/pyworker/com/xiuhong/mxnet/gression/demo.py”, line 11, in 
print(pd)
File “/home/deeplearning/anaconda3/lib/python3.6/site-packages/mxnet/gluon/parameter.py”, line 484, in repr
for v in self.values()]))
File “/home/deeplearning/anaconda3/lib/python3.6/site-packages/mxnet/gluon/parameter.py”, line 484, in 
for v in self.values()]))
File “/home/deeplearning/anaconda3/lib/python3.6/site-packages/mxnet/gluon/parameter.py”, line 120, in repr
return s.format(**self.dict)
KeyError: ‘shape’

Process finished with exit code 1

2.解决

是mxnet1.0的parameter的bug。如果你不想从源码再安装一遍的话，可以在源代码parametr.py里面把报错那行换成pull request里面的那句就行了：
return s.format(**self.__dict__)换成return s.format(name=self.name, shape=self.shape, dtype=self.dtype)
参考地址：
https://discuss.gluon.ai/t/topic/3626/2
https://github.com/apache/incubator-mxnet/commit/d77d937eaf7e13a30320368d316516bd9da52ca5