KeyError:“无法删除链接（无法删除自身）”

Question

我试图删除HDF5文件中的数据集。具体地说，我试图从我之前培训和保存的keras深度学习模型中删除优化器层。在

代码如下

f = h5py.File('model.h5', 'r+')
del f['optimizer_weights']
f.close()

错误是

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详细的错误消息

    del f['optimizer_weights']
  File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper (D:\Build\h5py\h5py-2.7.0\h5py\_objects.c:2853)
  File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper (D:\Build\h5py\h5py-2.7.0\h5py\_objects.c:2811)
  File "C:\Users\Anaconda3\envs\tensorflow-keras-gpu\lib\site-packages\h5py\_hl\group.py", line 297, in __delitem__
    self.id.unlink(self._e(name))
  File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper (D:\Build\h5py\h5py-2.7.0\h5py\_objects.c:2853)
  File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper (D:\Build\h5py\h5py-2.7.0\h5py\_objects.c:2811)
  File "h5py\h5g.pyx", line 294, in h5py.h5g.GroupID.unlink (D:\Build\h5py\h5py-2.7.0\h5py\h5g.c:4179)
KeyError: "Couldn't delete link (Can't delete self)"

关于如何解决这个问题有什么建议吗？？在

谢谢！在

Answer 1

这是一个很老的问题，但请尝试将文件置于write或append模式

f = h5py.File('model.h5', 'a')

Answer 2

你确定数据集真的在那里？我在试图删除不存在的数据集时遇到了这个错误。在

def printname(name):
    print(name)

f.visit(printname)

# list of datasets, should contain 'dataset_name'

不幸的是，在代码中，每次删除之前都需要检查是否存在。要“覆盖”可能已经存在的数据集：

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