switch to use of importlib to avoid imp module deprecation (fixes #119)

Signed-off-by: Karl W Schulz <karl.schulz@amd.com>

tests/test_analyze_commands.py

@@ -2,9 +2,9 @@ import os.path
 from pathlib import Path
 from unittest.mock import patch
 import pytest
-import imp
+from importlib.machinery import SourceFileLoader
 
-omniperf = imp.load_source("omniperf", "src/omniperf")
+omniperf = SourceFileLoader("omniperf", "src/omniperf").load_module()
 
 
 def test_valid_path_mi100():

tests/test_analyze_workloads.py

@@ -1,8 +1,9 @@
 import pytest
 from unittest.mock import patch
-import imp
+from importlib.machinery import SourceFileLoader
+
+omniperf = SourceFileLoader("omniperf", "src/omniperf").load_module()
 
-omniperf = imp.load_source("omniperf", "src/omniperf")
 ##################################################
 ##          Generated tests                     ##
 ##################################################

tests/test_import_workloads.py

@@ -1,8 +1,8 @@
 import pytest
 from unittest.mock import patch
-import imp
+from importlib.machinery import SourceFileLoader
 
-omniperf = imp.load_source("omniperf", "src/omniperf")
+omniperf = SourceFileLoader("omniperf", "src/omniperf").load_module()
 
 ##################################################
 ##          Generated tests                     ##