Import error for rospy in Python3.6 script

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I've tried import rospy into a python script that requires python3.6, but it gives me the error: ModuleNotFoundError: No module named 'rospy'

I'm able to successfully import the rospy into a python3.5 script.

So how can I install rospy package for python3.6 ?? When running in python 3.6 I first remove the path to the python2.7 link.

This works:

 dev@dev:~/tool_system$ python3.5
Python 3.5.2 (default, Oct  8 2019, 13:06:37) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import rospy
>>>

This does not work:

 dev@dev:~/tool_system$ python3.6
  Python 3.6.10 (default, Dec 19 2019, 23:04:32) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path.remove('/opt/ros/kinetic/lib/python2.7/dist-packages')
>>> import rospy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'rospy'
>>>