In [38]: pd.Series(1, index=pd.period_range(start='2000', periods=100)).resample('M').count()
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-38-295afa97781f> in <module>()
----> 1 pd.Series(1, index=pd.period_range(start='2000', periods=100)).resample('M').count()
/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pandas/tseries/resample.py in f(self, _method)
473
474 def f(self, _method=method):
--> 475 return self._groupby_and_aggregate(None, _method)
476 f.__doc__ = getattr(GroupBy, method).__doc__
477 setattr(Resampler, method, f)
/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pandas/tseries/resample.py in _groupby_and_aggregate(self, grouper, how, *args, **kwargs)
353
354 if grouper is None:
--> 355 self._set_binner()
356 grouper = self.grouper
357
/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pandas/tseries/resample.py in _set_binner(self)
202
203 if self.binner is None:
--> 204 self.binner, self.grouper = self._get_binner()
205
206 def _get_binner(self):
/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pandas/tseries/resample.py in _get_binner(self)
210 """
211
--> 212 binner, bins, binlabels = self._get_binner_for_time()
213 bin_grouper = BinGrouper(bins, binlabels)
214 return binner, bin_grouper
/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pandas/tseries/resample.py in _get_binner_for_time(self)
538 if self.kind == 'period':
539 return self.groupby._get_time_period_bins(self.ax)
--> 540 return self.groupby._get_time_bins(self.ax)
541
542 def _downsample(self, how, **kwargs):
/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/pandas/tseries/resample.py in _get_time_bins(self, ax)
905 if not isinstance(ax, DatetimeIndex):
906 raise TypeError('axis must be a DatetimeIndex, but got '
--> 907 'an instance of %r' % type(ax).__name__)
908
909 if len(ax) == 0:
TypeError: axis must be a DatetimeIndex, but got an instance of 'PeriodIndex'
Expected:
Out[39]:
2000-01 31
2000-02 29
2000-03 31
2000-04 9
Freq: M, dtype: int64
On pandas 0.18
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