DatetimeIndex from Series worked in 0.12.x?

[jseabold]

I'm fairly certain this worked before a recent upgrade. Too busy to check right now. Maybe it shouldn't work and it's just been fixed, but ... I have something like this in a lot of places in my code.

df = pd.DataFrame(np.random.rand(5,3))
df['date'] = ['1-1-1990', '2-1-1990', '3-1-1990', '4-1-1990', '5-1-1990']
pd.DatetimeIndex(df['date'], freq='MS')

Raises about Series not having an attribute inferred_freq. Why is it trying to infer a frequency when I passed freq? Is it a new check?

[22]: pd.version.version
[22]: '0.13.0-472-g9109812'

[jreback]

Their weren't any tests for this; and I think that to_datetime changed so that it returns a Series (which how DatetimeIndex internally parses it).

workaround for 0.13/0.13.1 (this will be fixed in master as soon as I merge)

is

DatetimeIndex(df['date'].values,freq='MS')

[jseabold]

Thanks, yeah, I started working with underlying .values.