wesm/pandas — Issue #484: Type inference with list of lists in DataFrame constructor
Author: wesm
Created: 2011-12-13 18:08:37+00:00
State: open
Labels: Bug

```
In [1216]: l = [[1, 'a'], [2, 'b']]
...: df = DataFrame(data = l, columns = ["num", "str"])
...:

In [1217]: df.dtypes
Out[1217]: num object
str object
```