Execute python script not working

The execute python script plugin is not working in my process studio. It is showing running status only continuously. Please check out this issue.

WF_UserDefinedJavaClass_Assignment1.psw (12.3 KB)

EmployeeDetails.xlsx (9.6 KB)

ProjectDetails.xlsx (8.4 KB)

Please can you share the Python script?

Here it is.

inputfile.py (517 Bytes)