对象名称中不允许使用``/''字符 [英] The ``/`` character is not allowed in object names

问题描述

我正在HDF5文件中使用名称中带有"/"的结构.当我加载上述文件时，会收到以下警告:

I am working with a structure within the HDF5 file that has names with '/' in them. When I load said file, I get this warning:

 ⓔ  develop  In [1]  import pandas as pd

 ⓔ  develop  In [2]  store = pd.HDFStore('data/XXX-20150423-071618.h5')       

 ⓔ  develop  In [3]  store
/home/XXX/virt/env/develop/lib/python2.7/site-packages/tables/group.
py:1156: UserWarning: problems loading leaf ``/log``::

  the ``/`` character is not allowed in object names: 'XXX/align/aft_port_end/extend_pressure'

The leaf will become an ``UnImplemented`` node.
  % (self._g_join(childname), exc))

我们可以进行更改，但这将是主要的PITA，并且涉及破解现有的关键文件.因此，在可能的情况下，我们不希望这样做.

We could change those but it would be a major PITA and would involve hacking existing critical files. So, while possible we would like not to do that.

我们可以通过任何方式在名称中使用"/"吗?

Is there any way we can have '/' in names or is it just not supported?

>>> pd.show_versions()

INSTALLED VERSIONS
------------------
commit: None
python: 2.7.5.final.0
python-bits: 64
OS: Linux
OS-release: 3.10.0-229.1.2.el7.x86_64
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_GB.UTF-8

pandas: 0.16.0
nose: 1.3.6
Cython: 0.22
numpy: 1.9.2
scipy: 0.15.1
statsmodels: None
IPython: 3.0.0
sphinx: 1.2.3
patsy: None
dateutil: 2.4.2
pytz: 2015.2
bottleneck: None
tables: 3.1.1
numexpr: 2.2.2
matplotlib: 1.4.3
openpyxl: None
xlrd: None
xlwt: None
xlsxwriter: None
lxml: None
bs4: None
html5lib: None
httplib2: None
apiclient: None
sqlalchemy: 0.9.7
pymysql: None
psycopg2: None

推荐答案

从技术上说，该文件是非法的HDF5-

Technically the file is illegal HDF5 - the official spec in 5.2. HDF5 Path Names and Navigation clearly defines Names to be strings of non-slash characters. So, PyTables isn't wrong to reject your input here (and it's being rather gracious by simply falling back to an UnImplemented node).

也就是说，如果您不只是担心入侵PyTables，则可以从

That said, if you're not afraid of just hacking PyTables, you could disable the offending check from tables/path.py. As far as I can tell, the only side-effect of this will be that the objects will not be usable using natural naming, but that's not likely to be a big deal.

(注意:我以前没有使用过PyTables，所以这完全是基于我对代码的阅读.)

(Caveat: I have not used PyTables before, so this is based solely on my reading of the code.)

这篇关于对象名称中不允许使用``/''字符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！