# paraview vs python installation - causing problems with python calculator

**URL:** https://discourse.paraview.org/t/paraview-vs-python-installation-causing-problems-with-python-calculator/6904
**Category:** ParaView Support
**Tags:** python
**Created:** [April 8, 2021, 8:52pm UTC](https://discourse.paraview.org/t/paraview-vs-python-installation-causing-problems-with-python-calculator/6904 "2021-04-08T20:52:49Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![garcfd](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/g/ccd318/32.png) [@garcfd](https://discourse.paraview.org/u/garcfd)
#### Post date: [April 8, 2021, 8:52pm UTC](https://discourse.paraview.org/t/paraview-vs-python-installation-causing-problems-with-python-calculator/6904/1 "2021-04-08T20:52:49Z")

</div>

paraview compatibility with python installation causing problems with python calculator. I cant seem to use the python calculator filter (at the moment) and getting this error message. Its something to do with the import of numpy…

Traceback (most recent call last):  
File “”, line 4, in   
File “C:\Program Files (x86)\ParaView 3.98.1\lib\paraview-3.98\site-packages\paraview\vtk\dataset\_adapter.py”, line 2, in   
import numpy  
File “C:\Python36\Lib\site-packages\numpy\__init_\_.py”, line 292  
SyntaxError: Non-ASCII character ‘\xef’ in file C:\Python36\Lib\site-packages\numpy\__init_\_.py on line 293, but no encoding declared; see [http://www.python.org/peps/pep-0263.html](http://www.python.org/peps/pep-0263.html) for details

 ![Capture](https://discourse.paraview.org/uploads/default/original/2X/4/44fa3e1683f49db362adddff24a708e0daa26879.png) ![Capture1](https://discourse.paraview.org/uploads/default/original/2X/9/94566c3ec2883c0239cf34d6f50c7b2e81e24785.png)