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 * Serving Flask app "test" (lazy loading)
 * Environment: production
   WARNING: Do not use the development server in a production environment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://127.0.0.1:8001/ (Press CTRL+C to quit)
Hello World
127.0.0.1 - - [18/Jun/2018 20:00:45] "GET / HTTP/1.1" 200 -
/usr/local/lib/python2.7/site-packages/pandas/core/computation/expressions.py:65: FutureWarning: Floor division between integer array and Timedelta is
deprecated. Use 'array // timedelta.value' instead.
If you want to obtain epochs from an array of timestamps,
you can rather use
'array - pd.Timestamp("1970-01-01")) // pd.Timedelta("1s")'.

  return op(a, b)
Exception in thread Thread-2:
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/local/Cellar/python@2/2.7.15/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "amrith_code.py", line 103, in do_work
    df6 = df6.append(process_file(df).compute())
  File "amrith_code.py", line 75, in process_file
    df2.day_date = df2.day_date.dt.date
  File "/usr/local/lib/python2.7/site-packages/dask/dataframe/core.py", line 2433, in __getattr__
    raise AttributeError("'DataFrame' object has no attribute %r" % key)
AttributeError: 'DataFrame' object has no attribute 'day_date'