Remove use of imp

Author: MHendricks

tests.py

@@ -5,7 +5,7 @@
 import os
 import re
 import sys
-import imp
+import importlib.util
 import shutil
 import tempfile
 import textwrap
@@ -452,11 +452,15 @@ def test_environment():
 
     if sys.version_info >= (3, 11):
         # NOTE: Qt6 is only available for python 3.11 and above
-        imp.find_module("PySide6")
-        imp.find_module("PyQt6")
+        if importlib.util.find_spec("PySide6") is None:
+            raise ImportError("No module named 'PySide6'")
+        if importlib.util.find_spec("PyQt6") is None:
+            raise ImportError("No module named 'PyQt6'")
     else:
-        imp.find_module("PySide2")
-        imp.find_module("PyQt5")
+        if importlib.util.find_spec("PySide2") is None:
+            raise ImportError("No module named 'PySide2'")
+        if importlib.util.find_spec("PyQt5") is None:
+            raise ImportError("No module named 'PyQt5'")
 
 
 def test_load_ui_returntype():