import pandas as pd 
I am getting the following error while importing pandas. Could anyone please help me i am relatively new to python. I am using raspberry for this and the os installed is raspbian os.
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ImportError                               Traceback (most recent call last)
/usr/local/lib/python3.5/dist-packages/pandas/__init__.py in <module>()
     25 try:
---> 26     from pandas._libs import (hashtable as _hashtable,
     27                              lib as _lib,
/usr/local/lib/python3.5/dist-packages/pandas/_libs/__init__.py in <module>()
      3 
----> 4 from .tslib import iNaT, NaT, Timestamp, Timedelta, OutOfBoundsDatetime
      5 
ImportError: cannot import name 'iNaT'
During handling of the above exception, another exception occurred:
ImportError                               Traceback (most recent call last)
<ipython-input-3-7dd3504c366f> in <module>()
----> 1 import pandas as pd
/usr/local/lib/python3.5/dist-packages/pandas/__init__.py in <module>()
     33                       "pandas from the source directory, you may need to run "
     34                       "'python setup.py build_ext --inplace --force' to build "
---> 35                       "the C extensions first.".format(module))
     36 
     37 from datetime import datetime
ImportError: C extension: 'iNaT' not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace --force' to build the C extensions first.
 
    