diff --git a/psutil/tests/test_scripts.py b/psutil/tests/test_scripts.py
index 41b5db4d5..79ca8a791 100755
--- a/psutil/tests/test_scripts.py
+++ b/psutil/tests/test_scripts.py
@@ -186,15 +186,26 @@ def test_sensors(self):
     reason="can't find scripts/internal/ directory",
 )
 class TestInternalScripts(PsutilTestCase):
-    def test_syntax_all(self):
+    @staticmethod
+    def ls():
         for name in os.listdir(INTERNAL_SCRIPTS_DIR):
-            if not name.endswith(".py"):
-                continue
-            path = os.path.join(INTERNAL_SCRIPTS_DIR, name)
+            if name.endswith(".py"):
+                yield os.path.join(INTERNAL_SCRIPTS_DIR, name)
+
+    def test_syntax_all(self):
+        for path in self.ls():
             with open(path, encoding="utf8") as f:
                 data = f.read()
             ast.parse(data)
 
+    @pytest.mark.skipif(CI_TESTING, reason="not on CI")
+    def test_import_all(self):
+        for path in self.ls():
+            try:
+                import_module_by_path(path)
+            except SystemExit:
+                pass
+
 
 # ===================================================================
 # --- Tests for setup.py script
diff --git a/scripts/internal/bench_oneshot_2.py b/scripts/internal/bench_oneshot_2.py
index 1076dffc8..aa3ca78d1 100755
--- a/scripts/internal/bench_oneshot_2.py
+++ b/scripts/internal/bench_oneshot_2.py
@@ -11,27 +11,27 @@
 import sys
 
 import pyperf  # requires "pip install pyperf"
-from bench_oneshot import names
 
 import psutil
 
 
 p = psutil.Process()
-funs = [getattr(p, n) for n in names]
 
 
-def call_normal():
+def call_normal(funs):
     for fun in funs:
         fun()
 
 
-def call_oneshot():
+def call_oneshot(funs):
     with p.oneshot():
         for fun in funs:
             fun()
 
 
 def main():
+    from bench_oneshot import names
+
     runner = pyperf.Runner()
 
     args = runner.parse_args()
@@ -43,8 +43,10 @@ def main():
         for name in sorted(names):
             print("    " + name)
 
-    runner.bench_func("normal", call_normal)
-    runner.bench_func("oneshot", call_oneshot)
+    funs = [getattr(p, n) for n in names]
+    runner.bench_func("normal", call_normal, funs)
+    runner.bench_func("oneshot", call_oneshot, funs)
 
 
-main()
+if __name__ == "__main__":
+    main()
diff --git a/scripts/internal/git_pre_commit.py b/scripts/internal/git_pre_commit.py
index 10f6368da..a47d7987e 100755
--- a/scripts/internal/git_pre_commit.py
+++ b/scripts/internal/git_pre_commit.py
@@ -166,4 +166,5 @@ def main():
                 )
 
 
-main()
+if __name__ == "__main__":
+    main()
diff --git a/scripts/internal/purge_installation.py b/scripts/internal/purge_installation.py
index 55b2f5c50..254adabe0 100755
--- a/scripts/internal/purge_installation.py
+++ b/scripts/internal/purge_installation.py
@@ -38,4 +38,5 @@ def main():
                     rmpath(abspath)
 
 
-main()
+if __name__ == "__main__":
+    main()