It is not a CodecRegistryError, but SyntaxError.
Looks like you have Python 27 installed on your machine. That can cause a conflict.
First of all I suggest to install Python 34 the latest official Python 3 package instead of 27. Then install required package.
Finally you should be able to use this code in your TC scripts:
from os import sys
sys.path.insert(0, '%PATH_TO_PYTHON_DIRECTORY%\Lib\site-packages') import yourModuleName
Should we have to install Python 3.x msi even thoug TestComplete as python? After this we have to install thord party packages?
1. TestComplete has built-in Python interpreter and you don't need to install something additionally.
2. However to setup some third party libraries you need to have Python "registered" in your operation system.
The easiest way is to install official package from python.org.
Also you can register TC package in system %PATH%
