DataFrame list of dicts example fails
Working through the tutorial labeled pandas 0.7.0.dev-1139a8d documentation, I was having a problem with the list of dicts example

---

In [1]: from pandas import *

In [2]: import numpy as np

In [14]: pandas.version
Out[14]: <module 'pandas.version' from '/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/pandas-0.6.1-py2.7-macosx-10.5-i386.egg/pandas/version.pyc'>
# Prove that I have everything installed correctly

In [15]: data = np.zeros((2,),dtype=[('A', 'i4'),('B', 'f4'),('C', 'a10')])
In [16]: data[:] = [(1,2.,'Hello'),(2,3.,"World")]
In [17]: DataFrame(data)
Out[17]: 
   A  B  C  
0  1  2  Hello
1  2  3  World
# List of dicts example that fails

In [18]: data2 = [{'a': 1, 'b': 2}, {'a': 5, 'b': 10, 'c': 20}]
In [19]: DataFrame(data2)
Out[19]: 
   0  
0  {'a': 1, 'b': 2}  
1  {'a': 5, 'c': 20, 'b': 10}

In [20]: DataFrame(data2, index=['first', 'second'])
Out[20]: 
        0  
first   {'a': 1, 'b': 2}  
second  {'a': 5, 'c': 20, 'b': 10}

In [21]: DataFrame(data2, columns=['a', 'b', 'c'])
## AssertionError:

Looking at the mailing list, you almost have the solution in your post on 9/28/2011 in response to "Re: [pystatsmodels] Getting "stuff" into dataframes..."

In [23]: row_data2 = dict(enumerate(data2))

In [24]: DataFrame.from_dict(row_data2, orient='index'))
Out[24]: 
   a  b   c  
0  1  2   NaN
1  5  10  20 

(which matches the result in the documentation)
