diff --git a/snakemake/common/__init__.py b/snakemake/common/__init__.py
index b09feb91d..878966c7a 100644
--- a/snakemake/common/__init__.py
+++ b/snakemake/common/__init__.py
@@ -23,7 +23,7 @@
 
 
 MIN_PY_VERSION = (3, 7)
-DYNAMIC_FILL = "__othernakemake_dynamic__"
+DYNAMIC_FILL = "__snakemake_dynamic__"
 SNAKEMAKE_SEARCHPATH = str(Path(__file__).parent.parent.parent)
 UUID_NAMESPACE = uuid.uuid5(uuid.NAMESPACE_URL, "https://snakemake.readthedocs.io")
 NOTHING_TO_BE_DONE_MSG = (
@@ -172,7 +172,7 @@ class Mode:
 
 
 class lazy_property(property):
-    __otherlots__ = ["method", "cached", "__doc__"]
+    __slots__ = ["method", "cached", "__doc__"]
 
     @staticmethod
     def clean(instance, method):
diff --git a/snakemake/io.py b/snakemake/io.py
index ffd144e78..44fecc5aa 100755
--- a/snakemake/io.py
+++ b/snakemake/io.py
@@ -1065,7 +1065,7 @@ def pipe(value):
     if is_flagged(value, "remote"):
         raise SyntaxError("Pipes may not be remote files.")
     if ON_WINDOWS:
-        logger.warning("Pipes is not yet supported on Windows.")
+        logger.warning("Pipes are not yet supported on Windows.")
     return flag(value, "pipe", not ON_WINDOWS)