[hack] Do not use an indirect import

It creates unexpected problems with import of testgres.common on alpine (CI).

Author: d.kovalenko

__init__.py

@@ -1,8 +1,8 @@
 # coding: utf-8
-from .helpers.global_data import OsOpsDescr
-from .helpers.global_data import OsOpsDescrs
-from .helpers.global_data import OsOperations
-from .helpers.run_conditions import RunConditions
+from tests.helpers.global_data import OsOpsDescr
+from tests.helpers.global_data import OsOpsDescrs
+from tests.helpers.global_data import OsOperations
+from tests.helpers.run_conditions import RunConditions
 
 import os
 

tests/__init__.py

@@ -1,6 +1,6 @@
 # coding: utf-8
-from .helpers.global_data import OsOpsDescrs
-from .helpers.global_data import OsOperations
+from tests.helpers.global_data import OsOpsDescrs
+from tests.helpers.global_data import OsOperations
 
 import os
 

tests/helpers/__init__.py

@@ -1,7 +1,7 @@
 # coding: utf-8
 
-from .helpers.global_data import OsOpsDescrs
-from .helpers.global_data import OsOperations
+from tests.helpers.global_data import OsOpsDescrs
+from tests.helpers.global_data import OsOperations
 
 from src.exceptions import ExecUtilException