minor PEP8 cleanup, remove unused imports

Author: Ivan Dlugos

objectbox/c.py

@@ -204,8 +204,6 @@ def c_voidp_as_bytes(voidp, size):
     return memoryview(ctypes.cast(voidp, ctypes.POINTER(ctypes.c_ubyte * size))[0]).tobytes()
 
 
-
-
 # OBX_model* (void);
 obx_model_create = fn('obx_model_create', OBX_model_p, [])
 

objectbox/model/entity.py

@@ -1,5 +1,4 @@
 import flatbuffers
-from typing import List
 from objectbox.c import *
 from objectbox.model.properties import Property
 

objectbox/model/model.py

@@ -1,8 +1,6 @@
 from objectbox.model.entity import _Entity
 from objectbox.c import *
 
-from typing import List
-
 
 class IdUid:
     __slots__ = 'id', 'uid'
@@ -26,7 +24,7 @@ def __init__(self):
     def entity(self, entity: _Entity, last_property_id: IdUid):
         if not isinstance(entity, _Entity):
             raise Exception("Given type is not an Entity. Are you passing an instance instead of a type or did you "
-                             "forget the '@Entity' annotation?")
+                            "forget the '@Entity' annotation?")
 
         entity.last_property_id = last_property_id
 
@@ -37,7 +35,6 @@ def entity(self, entity: _Entity, last_property_id: IdUid):
             if v._flags != 0:
                 obx_model_property_flags(self._c_model, v._flags)
 
-
         obx_model_entity_last_property_id(self._c_model, last_property_id.id, last_property_id.uid)
 
     # called by Builder

objectbox/objectbox.py

@@ -6,4 +6,4 @@ def __init__(self, c_store: OBX_store_p):
         self._c_store = c_store
 
     def __del__(self):
-        obx_store_close(self._c_store)
+        obx_store_close(self._c_store)