Curious: df.ix[False] returns the first row

[ghost]

In [21]: df=pd.DataFrame({"a":[1,2,3]})
    ...: df.ix[False]
Out[21]: 
a    1
Name: 0

Don't know if this is a bug or intentiional.

[wesm]

Getting coerced to 0 I guess. Buglet

[changhiskhan]

In [9]: com.is_integer(True)
Out[9]: True

[cpcloud]

In the Python source (Include/boolobject.h I believe) you have,

typedef PyIntObject PyBoolObject;

thus it is a subclass of int and will be auto-coerced to 0.

[ghost]

FAIL: test_getitem_setitem_ix_bool_keyerror (pandas.tests.test_frame.TestDataFrame)

Traceback (most recent call last):
File "/home/user1/src/pandas/pandas/tests/test_frame.py", line 1115, in test_getitem_setitem_ix_bool_keyerror
self.assertRaises(KeyError, df.ix.getitem, False)
AssertionError: KeyError not raised

[wesm]

That's interesting. Did you rebuild the C extensions?

[ghost]

that was it. thanks.