DataFrame.keys()

pandas.DataFrame.keys

DataFrame.keys()

Get the ‘info axis’ (see Indexing for more)

This is index for Series, columns for DataFrame and major_axis for Panel.

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© 2008–2014 the pandas development team
Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.DataFrame.keys.html