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BUG: to_hdf failing with integer columns and data_columns=True #9057

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jreback opened this issue Dec 11, 2014 · 1 comment · Fixed by #10098
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BUG: to_hdf failing with integer columns and data_columns=True #9057

jreback opened this issue Dec 11, 2014 · 1 comment · Fixed by #10098
Labels
Bug Dtype Conversions Unexpected or buggy dtype conversions IO HDF5 read_hdf, HDFStore
Milestone
0.16.2

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@jreback
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jreback commented Dec 11, 2014 

In [39]: N = 1000

In [40]: df = DataFrame(np.random.randint(0,8,size=N*400).astype('uint8').reshape(N,-1),index=pd.date_range('20130206',periods=N,freq='ms'))

In [41]: df.to_hdf('test.h5','df',mode='w',format='table')

In [42]: df.to_hdf('test.h5','df',mode='w',format='table',data_columns=True)
AttributeError: 'numpy.int64' object has no attribute 'startswith'
@jreback jreback added Bug Dtype Conversions Unexpected or buggy dtype conversions IO HDF5 read_hdf, HDFStore labels Dec 11, 2014
@jreback jreback added this to the 0.16.0 milestone Dec 11, 2014
@jreback jreback modified the milestones: 0.16.0, Next Major Release Mar 6, 2015
@jameshiebert
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Looking at this as part of the PyCon Sprints.

@jameshiebert jameshiebert mentioned this issue Apr 14, 2015
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@jreback jreback modified the milestones: 0.16.1, Next Major Release, 0.17.0 Apr 17, 2015
@jameshiebert jameshiebert mentioned this issue May 11, 2015
Merged
jameshiebert added a commit to jameshiebert/pandas that referenced this issue Jun 2, 2015
@jameshiebert
BUG: invalid column names in a HDF5 table format
8273356 
Have DataFrame.to_hdf() raise an error when using pytables with non-string
column types. Fixes pandas-dev#9057
@jreback jreback modified the milestones: 0.16.2, 0.17.0 Jun 2, 2015
jameshiebert added a commit to jameshiebert/pandas that referenced this issue Jun 3, 2015
@jameshiebert
BUG: invalid column names in a HDF5 table format
56fcc9d 
Have DataFrame.to_hdf() raise an error when using pytables with non-string
column types. Fixes pandas-dev#9057
jameshiebert added a commit to jameshiebert/pandas that referenced this issue Jun 6, 2015
@jameshiebert
BUG: invalid column names in a HDF5 table format
33cfaea 
Have DataFrame.to_hdf() raise an error when using pytables with non-string
column types. Fixes pandas-dev#9057
jreback added a commit that referenced this issue Jun 7, 2015
@jreback
Merge pull request #10098 from jameshiebert/bugfix-9057-error-only
d142452 
BUG: invalid column names in a HDF5 table format #9057
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Bug Dtype Conversions Unexpected or buggy dtype conversions IO HDF5 read_hdf, HDFStore
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Milestone
0.16.2
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@jreback @jameshiebert