Worked on the nndeploy/nndeploy repository to improve codebase maintainability by refactoring the import paths for tensor utility functions. Focused on Python development, the approach involved moving create_tensor_from_numpy and create_numpy_from_tensor from the test utilities module to a dedicated tensor module, resulting in a clearer separation of concerns and more reliable testing. This change reduced coupling between test code and core utilities, making future maintenance easier and onboarding smoother for new contributors. Emphasized code organization, refactoring, and testing throughout the process, with minimal behavioral changes to existing functionality and a targeted code fix to stabilize imports in tensor.py.