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DOC: whatsnew fixes #11280

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Merged
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Oct 10, 2015
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DOC: whatsnew fixes #11280

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34 changes: 23 additions & 11 deletions doc/source/whatsnew/v0.12.0.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -191,7 +191,7 @@ I/O Enhancements
df = DataFrame({'a': range(3), 'b': list('abc')})
print(df)
html = df.to_html()
alist = pd.read_html(html, infer_types=True, index_col=0)
alist = pd.read_html(html, index_col=0)
print(df == alist[0])

Note that ``alist`` here is a Python ``list`` so ``pd.read_html()`` and
Expand Down Expand Up @@ -252,19 +252,31 @@ I/O Enhancements
- Iterator support via ``read_hdf`` that automatically opens and closes the
store when iteration is finished. This is only for *tables*

.. ipython:: python
:okwarning:
.. code-block:: python

path = 'store_iterator.h5'
DataFrame(randn(10,2)).to_hdf(path,'df',table=True)
for df in read_hdf(path,'df', chunksize=3):
print(df)
In [25]: path = 'store_iterator.h5'

In [26]: DataFrame(randn(10,2)).to_hdf(path,'df',table=True)

In [27]: for df in read_hdf(path,'df', chunksize=3):
....: print df
....:
0 1
0 0.713216 -0.778461
1 -0.661062 0.862877
2 0.344342 0.149565
0 1
3 -0.626968 -0.875772
4 -0.930687 -0.218983
5 0.949965 -0.442354
0 1
6 -0.402985 1.111358
7 -0.241527 -0.670477
8 0.049355 0.632633
0 1
9 -1.502767 -1.225492

.. ipython:: python
:suppress:

import os
os.remove(path)

- ``read_csv`` will now throw a more informative error message when a file
contains no columns, e.g., all newline characters
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2 changes: 1 addition & 1 deletion doc/source/whatsnew/v0.17.0.txt
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Expand Up @@ -517,7 +517,7 @@ Other enhancements

- Allow passing `kwargs` to the interpolation methods (:issue:`10378`).

- Improved error message when concatenating an empty iterable of ``Dataframe``s (:issue:`9157`)
- Improved error message when concatenating an empty iterable of ``Dataframe`` objects (:issue:`9157`)

- ``pd.read_csv`` can now read bz2-compressed files incrementally, and the C parser can read bz2-compressed files from AWS S3 (:issue:`11070`, :issue:`11072`).

Expand Down