typos

src/ZODB/DB.py

@@ -379,16 +379,16 @@ class DB(object):
              When a connection has remained unused in a connection
              pool for more than pool_timeout seconds, it will be
              discarded and it's resources released.
-        :param objects cache_size`: target maximum number of non-ghost
+        :param objects cache_size: target maximum number of non-ghost
              objects in each connection object cache.
-        :param int cache_size_bytes`: target total memory usage of non-ghost
+        :param int cache_size_bytes: target total memory usage of non-ghost
              objects in each connection object cache.
-        :param int historical_pool_size`: expected maximum number of total
+        :param int historical_pool_size: expected maximum number of total
             historical connections
-        :param objects historical_cache_size`: target maximum number
+        :param objects historical_cache_size: target maximum number
              of non-ghost objects in each historical connection object
              cache.
-        :param int historical_cache_size_bytes`: target total memory
+        :param int historical_cache_size_bytes: target total memory
              usage of non-ghost objects in each historical connection
              object cache.
         :param seconds historical_timeout: Maximum age of inactive

src/ZODB/MappingStorage.py

@@ -35,7 +35,7 @@ class MappingStorage(object):
     """In-memory storage implementation
 
     Note that this implementation is somewhat naive and inefficient
-    with regard to locking.  It's implementation is primarily meant to
+    with regard to locking.  Its implementation is primarily meant to
     be a simple illustration of storage implementation. It's also
     useful for testing and exploration where scalability and efficiency
     are unimportant.

src/ZODB/interfaces.py

@@ -472,7 +472,7 @@ class IStorage(Interface):
         Finalize the storage, releasing any external resources.  The
         storage should not be used after this method is called.
 
-        Note that daabses close theor storages when they're closed, so
+        Note that databses close their storages when they're closed, so
         this method isn't generally called from application code.
         """