Moved original posted by @Bklyn in #2658 to here
I find I need to call tz_convert() on my DataFrame before I can plot it. By default the index tz is a "tzoffset" I get an exception when plottng.
AttributeError: 'module' object has no attribute 'tz'
d=pd.read_csv('vix.dlmp.csv', parse_dates=[0], index_col=0)
d.index.tz
Out[23]: tzoffset(None, -18000)
d['2012-12-28 09:30:15-05:00':]
Out[24]:
<class 'pandas.core.frame.DataFrame'>
DatetimeIndex: 981 entries, 2012-12-28 09:30:16.311000-05:00 to 2012-12-28 09:59:46.518000-05:00
Data columns:
Und 981 non-null values
BidPrice 981 non-null values
AskPrice 981 non-null values
TradePrice 981 non-null values
BidSize 981 non-null values
AskSize 981 non-null values
TradeSize 981 non-null values
T0 981 non-null values
T1 981 non-null values
T2 981 non-null values
T3 981 non-null values
T4 981 non-null values
T5 981 non-null values
dtypes: float64(9), int64(3), object(1)
d['2012-12-28 09:30:15-05:00':].plot(y=['BidPrice', 'AskPrice', 'TradePrice', 'T0', 'T1'],style=['g', 'b', 'r', 'k--', 'g--'],drawstyle='steps',figsize=(16,9))

---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-25-d7985a840c41> in <module>()
----> 1 d['2012-12-28 09:30:15-05:00':].plot(y=['BidPrice', 'AskPrice', 'TradePrice', 'T0', 'T1'],style=['g', 'b', 'r', 'k--', 'g--'],drawstyle='steps',figsize=(16,9))
/usr/local/lib/python2.7/dist-packages/pandas/tools/plotting.pyc in plot_frame(frame, x, y, subplots, sharex, sharey, use_index, figsize, grid, legend, rot, ax, style, title, xlim, ylim, logy, xticks, yticks, kind, sort_columns, fontsize, secondary_y, **kwds)
1419 grid=grid, logy=logy, secondary_y=secondary_y,
1420 title=title, figsize=figsize, fontsize=fontsize,
-> 1421 **kwds)
1422
1423 plot_obj = klass(frame, kind=kind, subplots=subplots, rot=rot,
/usr/local/lib/python2.7/dist-packages/pandas/tools/plotting.pyc in plot_series(series, label, kind, use_index, rot, xticks, yticks, xlim, ylim, ax, style, grid, legend, logy, secondary_y, **kwds)
1504 secondary_y=secondary_y, **kwds)
1505
-> 1506 plot_obj.generate()
1507 plot_obj.draw()
1508
/usr/local/lib/python2.7/dist-packages/pandas/tools/plotting.pyc in generate(self)
731 self._compute_plot_data()
732 self._setup_subplots()
--> 733 self._make_plot()
734 self._post_plot_logic()
735 self._adorn_subplots()
/usr/local/lib/python2.7/dist-packages/pandas/tools/plotting.pyc in _make_plot(self)
1063 lines = []
1064 labels = []
-> 1065 x = self._get_xticks(convert_period=True)
1066
1067 plotf = self._get_plot_function()
/usr/local/lib/python2.7/dist-packages/pandas/tools/plotting.pyc in _get_xticks(self, convert_period)
878 values for xaxis, several actions are already taken by plt.
879 """
--> 880 x = index._mpl_repr()
881 else:
882 self._need_to_set_index = True
/usr/local/lib/python2.7/dist-packages/pandas/tseries/index.pyc in _mpl_repr(self)
474 def _mpl_repr(self):
475 # how to represent ourselves to matplotlib
--> 476 return tslib.ints_to_pydatetime(self.asi8, self.tz)
477
478 def __repr__(self):
/usr/local/lib/python2.7/dist-packages/pandas/tslib.so in pandas.tslib.ints_to_pydatetime (pandas/tslib.c:2998)()
AttributeError: 'tzoffset' object has no attribute '_transition_info'
In [26]: d=d.tz_convert('US/Eastern')
In [27]: d['2012-12-28 09:30:15-05:00':].plot(y=['BidPrice', 'AskPrice', 'TradePrice', 'T0', 'T1'],style=['g', 'b', 'r', 'k--', 'g--'],drawstyle='steps',figsize=(16,9))
Out[27]: <matplotlib.axes.AxesSubplot at 0x4c25a50>
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