在 Python 中打开 .h5 文件
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Open .h5 file in Python
提问by python_enthusiast
I am trying to read a h5 file in Python.
我正在尝试用 Python 读取 h5 文件。
The file can be found in this linkand it is called 'vstoxx_data_31032014.h5'. The code I am trying to run is from the book Python for Finance, by Yves Hilpisch and goes like this:
该文件可在此链接中找到，名为“vstoxx_data_31032014.h5”。我试图运行的代码来自 Yves Hilpisch 的 Python for Finance 一书，如下所示：
import pandas as pd
h5 = pd.HDFStore('path.../vstoxx_data_31032014.h5', 'r')
futures_data = h5['futures_data'] # VSTOXX futures data
options_data = h5['options_data'] # VSTOXX call option data
h5.close()
I am getting the following error:
我收到以下错误：
h5 = pd.HDFStore('path.../vstoxx_data_31032014.h5', 'r')
Traceback (most recent call last):
File "<ipython-input-692-dc4e79ec8f8b>", line 1, in <module>
h5 = pd.HDFStore('path.../vstoxx_data_31032014.h5', 'r')
File "C:\Users\Laura\Anaconda3\lib\site-packages\pandas\io\pytables.py", line 466, in __init__
self.open(mode=mode, **kwargs)
File "C:\Users\Laura\Anaconda3\lib\site-packages\pandas\io\pytables.py", line 637, in open
raise IOError(str(e))
OSError: HDF5 error back trace
File "C:\aroot\work\hdf5-1.8.15-patch1\src\H5F.c", line 604, in H5Fopen
unable to open file
File "C:\aroot\work\hdf5-1.8.15-patch1\src\H5Fint.c", line 1085, in H5F_open
unable to read superblock
File "C:\aroot\work\hdf5-1.8.15-patch1\src\H5Fsuper.c", line 277, in H5F_super_read
file signature not found
End of HDF5 error back trace
Unable to open/create file 'path.../vstoxx_data_31032014.h5'
where I have substituted my working directory for 'path.../' for the purpose of this question.
出于这个问题的目的，我已将我的工作目录替换为“路径.../”。
Does anyone know where this error might be coming from?
有谁知道这个错误可能来自哪里？
采纳答案by DavidG
In order to open a HDF5 file with the h5pymodule you can use h5py.File(filename). The documentation can be found here.
要h5py使用模块打开 HDF5 文件，您可以使用h5py.File(filename). 文档可以在这里找到。
import h5py
filename = "vstoxx_data_31032014.h5"
h5 = h5py.File(filename,'r')
futures_data = h5['futures_data'] # VSTOXX futures data
options_data = h5['options_data'] # VSTOXX call option data
h5.close()
