I am trying to import tf in my python code, but it is throwing error "AttributeError: 'tuple' object has no attribute 'type'". please help me on this issue.

edit

I am using this code to get the tf of the robot with respect to the map, So I am importing tf in my python code. This code was working fine a few days before. All of a sudden I am getting this strange error. I have attached the error below.

cch-student@Braavos:~/mirnew_ws/src/miriam/multi_robot_action_move/scripts$ rosrun multi_robot_action_move robots_pos_publish.py 
Traceback (most recent call last):
  File "/home/cch-student/mirnew_ws/src/miriam/multi_robot_action_move/scripts/robots_pos_publish.py", line 4, in <module>
    import tf
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf/__init__.py", line 29, in <module>
    from listener import Transformer, TransformListener, TransformerROS
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/tf/listener.py", line 29, in <module>
    import numpy
  File "/home/cch-student/.local/lib/python2.7/site-packages/numpy/__init__.py", line 142, in <module>
    from . import core
  File "/home/cch-student/.local/lib/python2.7/site-packages/numpy/core/__init__.py", line 57, in <module>
    from . import numerictypes as nt
  File "/home/cch-student/.local/lib/python2.7/site-packages/numpy/core/numerictypes.py", line 111, in <module>
    from ._type_aliases import (
  File "/home/cch-student/.local/lib/python2.7/site-packages/numpy/core/_type_aliases.py", line 63, in <module>
    _concrete_types = {v.type for k, v in _concrete_typeinfo.items()}
  File "/home/cch-student/.local/lib/python2.7/site-packages/numpy/core/_type_aliases.py", line 63, in <setcomp>
    _concrete_types = {v.type for k, v in _concrete_typeinfo.items()}
AttributeError: 'tuple' object has no attribute 'type'

please help me with this error.