AttributeError: module 'pandas' has no attribute 'tslib'

#### Problem description
I just installed ggplot on my Windows x64  running Python 3.5 using pip. When I try to run:

from ggplot import *
from sklearn.metrics import roc_curve, auc


preds = log_mod.predict_proba(X_test)[:,1]
fpr, tpr, _ = roc_curve(y_test, preds)

df_dummies = pd.DataFrame(dict(fpr=fpr, tpr=tpr))
ggplot(df_dummies, aes(x='fpr', y='tpr')) +\
    geom_line() +\
    geom_abline(linetype='dashed')

I got the error: AttributeError: module 'pandas' has no attribute 'tslib'

Here is the traceback:
AttributeError                            Traceback (most recent call last)
<ipython-input-23-9083c102bdc2> in <module>
----> 1 from ggplot import *
      2 from sklearn.metrics import roc_curve, auc
      3 
      4 
      5 preds = log_mod.predict_proba(X_test)[:,1]

~\Anaconda3\lib\site-packages\ggplot\__init__.py in <module>
     17 
     18 
---> 19 from .geoms import geom_area, geom_blank, geom_boxplot, geom_line, geom_point, geom_jitter, geom_histogram, geom_density, geom_hline, geom_vline, geom_bar, geom_abline, geom_tile, geom_rect, geom_bin2d, geom_step, geom_text, geom_path, geom_ribbon, geom_now_its_art, geom_violin, geom_errorbar, geom_polygon
     20 from .stats import stat_smooth, stat_density
     21 

~\Anaconda3\lib\site-packages\ggplot\geoms\__init__.py in <module>
----> 1 from .geom_abline import geom_abline
      2 from .geom_area import geom_area
      3 from .geom_bar import geom_bar
      4 from .geom_bin2d import geom_bin2d
      5 from .geom_blank import geom_blank

~\Anaconda3\lib\site-packages\ggplot\geoms\geom_abline.py in <module>
----> 1 from .geom import geom
      2 
      3 class geom_abline(geom):
      4     """
      5     Line specified by slope and intercept

~\Anaconda3\lib\site-packages\ggplot\geoms\geom.py in <module>
      1 from __future__ import (absolute_import, division, print_function,
      2                         unicode_literals)
----> 3 from ..ggplot import ggplot
      4 from ..aes import aes
      5 

~\Anaconda3\lib\site-packages\ggplot\ggplot.py in <module>
     11 import warnings
     12 
---> 13 from .aes import aes
     14 from .legend import make_legend
     15 from .themes import theme_gray

~\Anaconda3\lib\site-packages\ggplot\aes.py in <module>
      9 from patsy.eval import EvalEnvironment
     10 
---> 11 from . import utils
     12 
     13 import numpy as np

~\Anaconda3\lib\site-packages\ggplot\utils.py in <module>
     79 
     80 date_types = (
---> 81     pd.tslib.Timestamp,
     82     pd.DatetimeIndex,
     83     pd.Period,

AttributeError: module 'pandas' has no attribute 'tslib'

I have tried to :

change

date_types = (
    pd.tslib.Timestamp,
    pd.DatetimeIndex,
    pd.Period,
    pd.PeriodIndex,
    datetime.datetime,
    datetime.time
)
to

date_types = (
    pd.Timestamp,
    pd.DatetimeIndex,
    pd.Period,
    pd.PeriodIndex,
    datetime.datetime,
    datetime.time
)
Then do the same in the ggplot/stats/smoothers.py file
AND
comment out

from pandas.lib import Timestamp


But It didn't work.

#### Expected Output

#### Output of ``pd.show_versions()``

<details>

[paste the output of ``pd.show_versions()`` here below this line]

</details>
