[core] Moves bonobo.execution context related package to new bonobo.execution.contexts package, also moves bonobo.strategies to new bonobo.execution.strategies package, so everything related to execution is now contained under the bonobo.execution package.

tests/io/test_csv.py

@@ -1,7 +1,7 @@
 import pytest
 
 from bonobo import CsvReader, CsvWriter, settings
-from bonobo.execution.node import NodeExecutionContext
+from bonobo.execution.contexts.node import NodeExecutionContext
 from bonobo.util.testing import FilesystemTester, BufferingNodeExecutionContext
 
 csv_tester = FilesystemTester('csv')

tests/io/test_file.py

@@ -2,7 +2,7 @@ import pytest
 
 from bonobo import Bag, FileReader, FileWriter
 from bonobo.constants import BEGIN, END
-from bonobo.execution.node import NodeExecutionContext
+from bonobo.execution.contexts.node import NodeExecutionContext
 from bonobo.util.testing import BufferingNodeExecutionContext, FilesystemTester
 
 txt_tester = FilesystemTester('txt')

tests/io/test_json.py

@@ -2,7 +2,7 @@ import pytest
 
 from bonobo import JsonReader, JsonWriter, settings
 from bonobo import LdjsonReader, LdjsonWriter
-from bonobo.execution.node import NodeExecutionContext
+from bonobo.execution.contexts.node import NodeExecutionContext
 from bonobo.util.testing import FilesystemTester, BufferingNodeExecutionContext
 
 json_tester = FilesystemTester('json')

tests/io/test_pickle.py

@@ -3,7 +3,7 @@ import pickle
 import pytest
 
 from bonobo import Bag, PickleReader, PickleWriter
-from bonobo.execution.node import NodeExecutionContext
+from bonobo.execution.contexts.node import NodeExecutionContext
 from bonobo.util.testing import BufferingNodeExecutionContext, FilesystemTester
 
 pickle_tester = FilesystemTester('pkl', mode='wb')