[DOP-20674] Replace ImportError with AttributeError in __getattr__

docs/changelog/next_release/+.bugfix.3.rst

@@ -0,0 +1 @@
+Use ``AttributeError`` instead of ``ImportError`` in module's ``__getattr__`` method, to make code compliant with Python spec.

onetl/connection/__init__.py

@@ -76,4 +76,4 @@ def __getattr__(name: str):
         submodule = file_df_connections_modules[name]
         return getattr(import_module(f"onetl.connection.file_df_connection.{submodule}"), name)
 
-    raise ImportError(f"cannot import name {name!r} from {__name__!r}")
+    raise AttributeError(name)

onetl/core/__init__.py

@@ -40,4 +40,4 @@ def __getattr__(name: str):
         )
         return getattr(import_module(f"onetl.{submodule}"), name)
 
-    raise ImportError(f"cannot import name {name!r} from {__name__!r}")
+    raise AttributeError(name)

onetl/hwm/store/__init__.py

@@ -45,4 +45,4 @@ def __getattr__(name: str):
 
         return getattr(import_module("etl_entities.hwm_store"), name)
 
-    raise ImportError(f"cannot import name {name!r} from {__name__!r}")
+    raise AttributeError(name)

onetl/strategy/hwm_store/__init__.py

@@ -39,7 +39,7 @@
 
 def __getattr__(name: str):
     if name not in __all__:
-        raise ImportError(f"cannot import name {name!r} from {__name__!r}")
+        raise AttributeError(name)
 
     message = f"""
         Imports from module {__name__!r} are deprecated since v0.6.0 and will be removed in v1.0.0.