diff --git a/python/ql/test/library-tests/frameworks/django-v2-v3/manage.py b/python/ql/test/library-tests/frameworks/django-v2-v3/manage.py
index 0e1a0b64a6e63..9fa5846c95518 100755
--- a/python/ql/test/library-tests/frameworks/django-v2-v3/manage.py
+++ b/python/ql/test/library-tests/frameworks/django-v2-v3/manage.py
@@ -6,7 +6,7 @@
 
 def main():
     """Run administrative tasks."""
-    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings')
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings') # $ threatModelSource[environment]=os.environ
     try:
         from django.core.management import execute_from_command_line
     except ImportError as exc:
@@ -15,7 +15,7 @@ def main():
             "available on your PYTHONPATH environment variable? Did you "
             "forget to activate a virtual environment?"
         ) from exc
-    execute_from_command_line(sys.argv)
+    execute_from_command_line(sys.argv) # $ threatModelSource[commandargs]=sys.argv
 
 
 if __name__ == '__main__':
diff --git a/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/asgi.py b/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/asgi.py
index 33b113ce911d6..4906268e41616 100644
--- a/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/asgi.py
+++ b/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/asgi.py
@@ -11,6 +11,6 @@
 
 from django.core.asgi import get_asgi_application
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings')
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings') # $ threatModelSource[environment]=os.environ
 
 application = get_asgi_application()
diff --git a/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/wsgi.py b/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/wsgi.py
index b466637895b7b..a3f803658abca 100644
--- a/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/wsgi.py
+++ b/python/ql/test/library-tests/frameworks/django-v2-v3/testproj/wsgi.py
@@ -11,6 +11,6 @@
 
 from django.core.wsgi import get_wsgi_application
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings')
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings') # $ threatModelSource[environment]=os.environ
 
 application = get_wsgi_application()
diff --git a/python/ql/test/library-tests/frameworks/rest_framework/manage.py b/python/ql/test/library-tests/frameworks/rest_framework/manage.py
index 0e1a0b64a6e63..9fa5846c95518 100755
--- a/python/ql/test/library-tests/frameworks/rest_framework/manage.py
+++ b/python/ql/test/library-tests/frameworks/rest_framework/manage.py
@@ -6,7 +6,7 @@
 
 def main():
     """Run administrative tasks."""
-    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings')
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproj.settings') # $ threatModelSource[environment]=os.environ
     try:
         from django.core.management import execute_from_command_line
     except ImportError as exc:
@@ -15,7 +15,7 @@ def main():
             "available on your PYTHONPATH environment variable? Did you "
             "forget to activate a virtual environment?"
         ) from exc
-    execute_from_command_line(sys.argv)
+    execute_from_command_line(sys.argv) # $ threatModelSource[commandargs]=sys.argv
 
 
 if __name__ == '__main__':
diff --git a/python/ql/test/library-tests/frameworks/stdlib-py3/FileSystemAccess.py b/python/ql/test/library-tests/frameworks/stdlib-py3/FileSystemAccess.py
index 4de7f3a3c329d..45eff39d82cb9 100644
--- a/python/ql/test/library-tests/frameworks/stdlib-py3/FileSystemAccess.py
+++ b/python/ql/test/library-tests/frameworks/stdlib-py3/FileSystemAccess.py
@@ -17,7 +17,7 @@
 
 name = windows.parent.name
 o = open
-o(name)  # $ getAPathArgument=name
+o(name)  # $ getAPathArgument=name threatModelSource[file]=o(..)
 
 wb = p.write_bytes
 wb(b"hello")  # $ getAPathArgument=p fileWriteData=b"hello"