Failed to Find the Required Installation Package During Image Creation

Symptom

The required installation package cannot be found during image creation.

Cause Analysis

PYTHONPATH may be incorrect.

Solution

If the dependency cannot be found by the existing installation package, check whether the value of PYTHONPATH is correct, for example, the path of Python 3.7 is /usr/local/python3.7.5/lib/python3.7/site-packages.