Improved database module structure

src/sh_edraft/service/__init__.py

@@ -20,7 +20,6 @@ __version__ = '2020.12.5'
 from collections import namedtuple
 
 # imports:
-from .service_provider import ServiceProvider
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
 version_info = VersionInfo(major=2020, minor=12, micro=5)

src/sh_edraft/service/base/__init__.py

@@ -21,7 +21,6 @@ from collections import namedtuple
 
 # imports:
 from .service_base import ServiceBase
-from .service_provider_base import ServiceProviderBase
 
 VersionInfo = namedtuple('VersionInfo', 'major minor micro')
 version_info = VersionInfo(major=2020, minor=12, micro=5)

src/sh_edraft/service/providing/__init__.py

@@ -1,3 +1,4 @@
 # imports:
+from .service_provider import ServiceProvider
 
 from .service_provider import ServiceProviderBase