Lint the code.

Add support for Python 3.9.

1 files changed, 12 insertions, 6 deletions

diff --git a/src/zope/security/tests/module.py b/src/zope/security/tests/module.py
index 5b26ff5..a4f9e73 100644
--- a/src/zope/security/tests/module.py
+++ b/src/zope/security/tests/module.py
@@ -21,23 +21,28 @@ modules, themselves.
 from zope.interface import Interface
 from zope.schema import Text
 
-class I(Interface):
+
+class I(Interface):  # noqa: E742 ambiguous class definition 'I'
     def m1():
-        "m1"
+        """m1"""
+
     def m2():
-        "m2"
+        """m2"""
+
 
 class I2(I):
     def m4():
-        "m4"
+        """m4"""
+
 
 class I3(Interface):
     def m3():
-        "m3"
+        """m3"""
+
 
 class I4(Interface):
     def m2():
-        "m2"
+        """m2"""
 
 
 class S(Interface):
@@ -45,6 +50,7 @@ class S(Interface):
     bar = Text()
     baro = Text(readonly=True)
 
+
 class S2(Interface):
     foo2 = Text()
     bar2 = Text()