Move all builtin transformations to the bonobo.nodes package, as the number grows.

bonobo/_api.py

@@ -1,10 +1,10 @@
 import warnings
 
-from bonobo.basics import Limit, PrettyPrint, Tee, count, identity, noop, pprint
+from bonobo.structs import Bag, Graph, Token
+from bonobo.nodes import CsvReader, CsvWriter, FileReader, FileWriter, Filter, JsonReader, JsonWriter, Limit, \
+    PrettyPrint, Tee, count, identity, noop, pprint
 from bonobo.strategies import create_strategy
-from bonobo.structs import Bag, Graph
 from bonobo.util.objects import get_name
-from bonobo.io import CsvReader, CsvWriter, FileReader, FileWriter, JsonReader, JsonWriter
 
 __all__ = []
 
@@ -63,7 +63,7 @@ def run(graph, *chain, strategy=None, plugins=None, services=None):
 
 
 # bonobo.structs
-register_api_group(Bag, Graph)
+register_api_group(Bag, Graph, Token)
 
 # bonobo.strategies
 register_api(create_strategy)
@@ -88,8 +88,15 @@ def open_fs(fs_url, *args, **kwargs):
     return _open_fs(str(fs_url), *args, **kwargs)
 
 
-# bonobo.basics
+# bonobo.nodes
 register_api_group(
+    CsvReader,
+    CsvWriter,
+    FileReader,
+    FileWriter,
+    Filter,
+    JsonReader,
+    JsonWriter,
     Limit,
     PrettyPrint,
     Tee,
@@ -99,9 +106,6 @@ register_api_group(
     pprint,
 )
 
-# bonobo.io
-register_api_group(CsvReader, CsvWriter, FileReader, FileWriter, JsonReader, JsonWriter)
-
 
 def _is_interactive_console():
     import sys

bonobo/config/configurables.py

@@ -54,6 +54,7 @@ class Configurable(metaclass=ConfigurableMeta):
             wrapped, args = args[0], args[1:]
             return type(wrapped.__name__, (cls, ), {cls.__wrappable__: wrapped})
 
+        # XXX is that correct ??? how does it pass args/kwargs to __init__ ???
         return super().__new__(cls)
 
     def __init__(self, *args, **kwargs):

bonobo/core/inputs.py

@@ -15,11 +15,12 @@
 # limitations under the License.
 
 from abc import ABCMeta, abstractmethod
+
 from queue import Queue
 
-from bonobo.errors import AbstractError, InactiveWritableError, InactiveReadableError
 from bonobo.constants import BEGIN, END
-from bonobo.basics import noop
+from bonobo.errors import AbstractError, InactiveReadableError, InactiveWritableError
+from bonobo.nodes import noop
 
 BUFFER_SIZE = 8192
 

bonobo/nodes/__init__.py

@@ -0,0 +1,9 @@
+from bonobo.nodes.io import __all__ as _all_io
+from bonobo.nodes.io import *
+
+from bonobo.nodes.basics import __all__ as _all_basics
+from bonobo.nodes.basics import *
+
+from bonobo.nodes.filter import Filter
+
+__all__ = _all_basics + _all_io + ['Filter']

bonobo/nodes/filter.py

@@ -24,5 +24,3 @@ class Filter(Configurable):
     def call(self, *args, **kwargs):
         if self.filter(*args, **kwargs):
             return NOT_MODIFIED
-
-