Adds create_reader/create_writer, more expliciteness in root module to avoid loosing IDEs (like jetbrains) in imports.

bonobo/__init__.py

@@ -9,9 +9,12 @@ import sys
 
 assert (sys.version_info >= (3, 5)), 'Python 3.5+ is required to use Bonobo.'
 
-from bonobo._api import *
+from bonobo._api import (
-from bonobo._api import __all__
+    run, inspect, Graph, create_strategy, open_fs, CsvReader, CsvWriter, FileReader, FileWriter, Filter, FixedWindow,
-from bonobo._api import __doc__
+    Format, JsonReader, JsonWriter, LdjsonReader, LdjsonWriter, Limit, OrderFields, PickleReader, PickleWriter,
+    PrettyPrinter, RateLimited, Rename, SetFields, Tee, UnpackItems, count, identity, noop, create_reader,
+    create_writer, get_examples_path, open_examples_fs, get_argument_parser, parse_args, __all__, __doc__
+)
 from bonobo._version import __version__
 
 __all__ = ['__version__'] + __all__

bonobo/_api.py

@@ -8,11 +8,12 @@ to another is maximal.
 """
 
 from bonobo.execution.strategies import create_strategy
-from bonobo.nodes import __all__ as _all_nodes
 from bonobo.nodes import *
+from bonobo.nodes import __all__ as _all_nodes
 from bonobo.structs import Graph
 from bonobo.util.api import ApiHelper
 from bonobo.util.environ import parse_args, get_argument_parser
+from bonobo.registry import create_reader, create_writer
 
 __all__ = []
 
@@ -155,6 +156,12 @@ api.register_group(
     check=_all_nodes,
 )
 
+# registry
+api.register_group(
+    create_reader,
+    create_writer,
+)
+
 
 def _is_interactive_console():
     import sys

bonobo/registry.py

@@ -2,7 +2,7 @@ import mimetypes
 
 import os
 
-from bonobo import JsonReader, CsvReader, PickleReader, FileReader, FileWriter, PickleWriter, CsvWriter, JsonWriter
+from bonobo.nodes import JsonReader, CsvReader, PickleReader, FileReader, FileWriter, PickleWriter, CsvWriter, JsonWriter
 
 FILETYPE_CSV = 'text/csv'
 FILETYPE_JSON = 'application/json'
@@ -88,3 +88,31 @@ class Registry:
 
 
 default_registry = Registry()
+
+def create_reader(name, *args, format=None, registry=default_registry, **kwargs):
+    """
+    Create a reader instance, guessing its factory using filename (and eventually format).
+
+    :param name:
+    :param args:
+    :param format:
+    :param registry:
+    :param kwargs:
+
+    :return: mixed
+    """
+    return registry.get_reader_factory_for(name, format=format)(name, *args, **kwargs)
+
+def create_writer(name, *args, format=None, registry=default_registry, **kwargs):
+    """
+    Create a writer instance, guessing its factory using filename (and eventually format).
+
+    :param name:
+    :param args:
+    :param format:
+    :param registry:
+    :param kwargs:
+
+    :return: mixed
+    """
+    return registry.get_writer_factory_for(name, format=format)(name, *args, **kwargs)