---
title: E40020 Environment_Error_Import_Python_Module_Failed
description: "Failed to import Python module %s. Reason: %s."
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/maintenref/troubleshooting/atlaserrorcode_15_0143.html
sourcePath: /source/zh/canncommercial/900/maintenref/troubleshooting/atlaserrorcode_15_0143.html
indexId: e09f25f6d4e67c142e3ba3c9246b1ad0e185428caa8deaf72d46991a8512d04c84
---
# E40020 Environment_Error_Import_Python_Module_Failed

#### Symptom

Failed to import Python module %s. Reason: %s.


#### Possible Cause

Some required Python modules are not installed.


#### Solution

Check that all required components are properly installed and the specified Python path matches the Python installation directory. If the path does not match the directory, run set_env.sh in the installation package.