move db module back to be more backwards compatible

example/example.py

@@ -9,7 +9,7 @@
 from db_layouts import tank_rc_if_db_layout
 
 from snap7 import Client, Row, DB
-from snap7.db import print_row
+from util.db import print_row
 
 client = Client()
 client.connect("192.168.200.24", 0, 3)

example/write_multi.py

@@ -1,7 +1,7 @@
 import ctypes
 import snap7
 from snap7.types import Area, S7DataItem, WordLen
-from snap7.db import set_int, set_real, get_int, get_real, get_s5time
+from util.db import set_int, set_real, get_int, get_real, get_s5time
 
 
 client = snap7.client.Client()

snap7/__init__.py

@@ -8,7 +8,7 @@
 from .server import Server
 from .logo import Logo
 from .partner import Partner
-from .db import Row, DB
+from .util.db import Row, DB
 from .types import Area, Block, WordLen, SrvEvent, SrvArea
 
 __all__ = ["Client", "Server", "Logo", "Partner", "Row", "DB", "Area", "Block", "WordLen", "SrvEvent", "SrvArea"]

snap7/client.py

@@ -407,7 +407,7 @@ def write_area(self, area: Area, db_number: int, start: int, data: bytearray) ->
             Snap7 error code.
 
         Exmaple:
-            >>> from db import DB
+            >>> from util.db import DB
             >>> import snap7
             >>> client = snap7.client.Client()
             >>> client.connect("192.168.0.1", 0, 0)

snap7/db.py → snap7/util/db.py

@@ -745,4 +745,4 @@ def read(self, client: Client) -> None:
 
 
 # backwards compatible alias
-DBRow = Row
+DB_Row = Row

tests/test_mainloop.py

@@ -7,10 +7,8 @@
 
 import snap7.error
 import snap7.server
-import snap7.db
-from snap7.db import get_bool, get_dint, get_dword, get_int, get_real, get_sint, get_string, get_usint, get_word
+from snap7.util import get_bool, get_dint, get_dword, get_int, get_real, get_sint, get_string, get_usint, get_word
 from snap7.client import Client
-import snap7.types
 
 logging.basicConfig(level=logging.WARNING)