# Psutil issue during installation according to readme instructions

**URL:** <https://opentps.discourse.group/t/psutil-issue-during-installation-according-to-readme-instructions/60>\
**Category:** General\
**Created:** [May 1, 2025, 3:44pm UTC](https://opentps.discourse.group/t/psutil-issue-during-installation-according-to-readme-instructions/60 "2025-05-01T15:44:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![acarabe](https://avatars.discourse-cdn.com/v4/letter/a/f05b48/32.png) [@acarabe](https://opentps.discourse.group/u/acarabe)\
**Post date:** [May 1, 2025, 3:44pm UTC](https://opentps.discourse.group/t/psutil-issue-during-installation-according-to-readme-instructions/60/1 "2025-05-01T15:44:55Z")

</div>

Hello,

I am exploring the use of OpenTPS as a tool to research about proton arc therapy for upright treatments. I have followed the installation instructions offered in the Readme.md file for the installation on Windows with Anaconda. Whe I type ‘opentps’ in the anaconda propmt, I get this:

01/05/2025 10:02:18 AM - root - INFO - Loading logging configuration: C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\core\config\logger\logging\_config.json  
01/05/2025 10:02:18 AM - opentps.core.\_loggingConfig - INFO - Log level set: INFO  
01/05/2025 10:02:19 AM - opentps.core.processing.imageProcessing.cupyImageProcessing - WARNING - Cannot import Cupy module  
01/05/2025 10:02:19 AM - opentps.core.data.images.\_vectorField3D - WARNING - cupy not found.  
01/05/2025 10:02:19 AM - opentps.core.processing.registration.registrationMorphons - WARNING - cupy not found.  
01/05/2025 10:02:19 AM - opentps.core.processing.registration.morphonsCupy - WARNING - cupy not found.  
01/05/2025 10:02:19 AM - opentps.core.processing.C\_libraries.libInterp3\_wrapper - WARNING - cupy not found.  
Traceback (most recent call last):  
File “”, line 198, in _run\_module\_as\_main  
File “”, line 88, in run\_code  
File "C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Scripts\opentps.exe\_main.py", line 4, in   
File "C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\gui\_init_.py", line 2, in   
from opentps.gui.main import run, patientList, viewController, runWithMainWindow  
File “C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\gui\main.py”, line 10, in   
from opentps.gui.viewController import ViewController  
File “C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\gui\viewController.py”, line 7, in   
from opentps.gui.mainWindow import MainWindow  
File “C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\gui\mainWindow.py”, line 6, in   
from opentps.gui.panels.mainToolbar import MainToolbar  
File “C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\gui\panels\mainToolbar.py”, line 10, in   
from opentps.gui.panels.doseComputationPanel import DoseComputationPanel  
File “C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\gui\panels\doseComputationPanel.py”, line 14, in   
from opentps.core.processing.doseCalculation.photons.cccDoseCalculator import CCCDoseCalculator  
File “C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\core\processing\doseCalculation\photons\cccDoseCalculator.py”, line 28, in   
from opentps.core.processing.doseCalculation.photons.\_utils import shiftBeamlets, adjustDoseToScenario  
File “C:\Users\ayc046\AppData\Local\anaconda3\envs\OpenTPS\Lib\site-packages\opentps\core\processing\doseCalculation\photons\_utils.py”, line 12, in   
import psutil  
ModuleNotFoundError: No module named ‘psutil’

Is there a step I missed?  
Thank you

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<div class="post-metadata">

**Author:** ![Eliot-P](https://yyz2.discourse-cdn.com/free1/user_avatar/opentps.discourse.group/eliot-p/32/6_2.png) [@Eliot-P](https://opentps.discourse.group/u/Eliot-P)\
**Post date:** [May 1, 2025, 4:14pm UTC](https://opentps.discourse.group/t/psutil-issue-during-installation-according-to-readme-instructions/60/2 "2025-05-01T16:14:23Z")

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Dear Alejandro,

It appears that your Python Anaconda environment is missing the `psutil` library. To resolve this, please install the library by running the following command:

```auto
pip install psutil

```

Thank you for bringing this issue to our attention — we will work on addressing it as soon as possible.