Merge pull request #53 from zopefoundation/slice_as_safe_builtin

Add `slice()` to safe_builtins.

src/RestrictedPython/Guards.py

@@ -51,6 +51,7 @@
     'range',
     'repr',
     'round',
+    'slice',
     'str',
     'tuple',
     'zip'
@@ -180,7 +181,6 @@
 # object
 # property
 # reload
-# slice
 # staticmethod
 # super
 # type

tests/builtins/test_utilities.py

@@ -1,4 +1,5 @@
 from RestrictedPython._compat import IS_PY3
+
 import pytest
 
 

tests/test_Guards.py

@@ -0,0 +1,11 @@
+from RestrictedPython.Guards import safe_builtins
+from tests import e_eval
+
+import pytest
+
+
+@pytest.mark.parametrize(*e_eval)
+def test_Guards__safe_builtins__1(e_eval):
+    """It contains `slice()`."""
+    restricted_globals = dict(__builtins__=safe_builtins)
+    assert e_eval('slice(1)', restricted_globals) == slice(1)

tests/transformer/test_async.py

@@ -5,6 +5,7 @@
 
 import pytest
 
+
 pytestmark = pytest.mark.skipif(
     not IS_PY35_OR_GREATER,
     reason="async statement was first introduced in Python 3.5")