Merge remote-tracking branch 'upstream/develop' into develop

MANIFEST.in

@@ -1,2 +1,3 @@
 include *.txt
+include bonobo/bonobo.svg
 recursive-include bonobo *.py-tpl

Makefile

@@ -120,7 +120,7 @@ watch-$(SPHINX_SOURCEDIR):   ##
 	$(SPHINX_AUTOBUILD) $(SPHINX_SOURCEDIR) $(shell mktemp -d)
 
 format:   ## Reformats the whole codebase using our standards (requires black and isort).
-	black -l 120 --skip-string-normalization .
+	black -l 120 .
 	isort -rc -o mondrian -o whistle -y .
 
 medikit:   # Checks installed medikit version and updates it if it is outdated.

Projectfile

@@ -87,7 +87,7 @@ def on_make_generate(event):
     makefile.add_target(
         'format',
         '''
-            black -l 120 --skip-string-normalization .
+            black -l 120 .
             isort -rc -o mondrian -o whistle -y .
         ''',
         phony=True,

appveyor.yml

@@ -17,11 +17,19 @@ environment:
       PYTHON_ARCH: "64"
 
     - PYTHON: "C:\\Python36"
-      PYTHON_VERSION: "3.6.1"
+      PYTHON_VERSION: "3.6.7"
       PYTHON_ARCH: "32"
 
     - PYTHON: "C:\\Python36-x64"
-      PYTHON_VERSION: "3.6.1"
+      PYTHON_VERSION: "3.6.7"
+      PYTHON_ARCH: "64"
+
+    - PYTHON: "C:\\Python37"
+      PYTHON_VERSION: "3.7.1"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python37-x64"
+      PYTHON_VERSION: "3.7.1"
       PYTHON_ARCH: "64"
 
 build: false

benchmarks/parameters.py

@@ -16,11 +16,11 @@ import timeit
 
 
 def j1(d):
-    return {'prepend': 'foo', **d, 'append': 'bar'}
+    return {"prepend": "foo", **d, "append": "bar"}
 
 
 def k1(**d):
-    return {'prepend': 'foo', **d, 'append': 'bar'}
+    return {"prepend": "foo", **d, "append": "bar"}
 
 
 def j2(d):
@@ -39,17 +39,17 @@ def k3(**d):
     return None
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     import timeit
 
-    with open('person.json') as f:
+    with open("person.json") as f:
         json_data = json.load(f)
 
     for i in 1, 2, 3:
         print(
-            'j{}'.format(i), timeit.timeit("j{}({!r})".format(i, json_data), setup="from __main__ import j{}".format(i))
+            "j{}".format(i), timeit.timeit("j{}({!r})".format(i, json_data), setup="from __main__ import j{}".format(i))
         )
         print(
-            'k{}'.format(i),
+            "k{}".format(i),
             timeit.timeit("k{}(**{!r})".format(i, json_data), setup="from __main__ import k{}".format(i)),
         )

bin/update_apidoc.py

@@ -2,48 +2,48 @@ import os
 
 from jinja2 import DictLoader, Environment
 
-__path__ = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__), '..'))
+__path__ = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__), ".."))
 
-apidoc_root = 'docs/reference/api'
+apidoc_root = "docs/reference/api"
 
 
 class Module:
     def __init__(self, name, title=None, *, automodule_options=None):
 
         self.name = name
-        self.title = title or ' '.join(map(str.title, self.name.split('.')[1:]))
+        self.title = title or " ".join(map(str.title, self.name.split(".")[1:]))
         self.automodule_options = automodule_options or list()
 
     def __repr__(self):
-        return '<{} ({})>'.format(self.title, self.name)
+        return "<{} ({})>".format(self.title, self.name)
 
     def asdict(self):
-        return {'name': self.name, 'title': self.title, 'automodule_options': self.automodule_options}
+        return {"name": self.name, "title": self.title, "automodule_options": self.automodule_options}
 
     def get_path(self):
-        return os.path.join(__path__, apidoc_root, *self.name.split('.')) + '.rst'
+        return os.path.join(__path__, apidoc_root, *self.name.split(".")) + ".rst"
 
 
 modules = [
-    Module('bonobo', title='Bonobo'),
-    Module('bonobo.config'),
-    Module('bonobo.constants', automodule_options=['no-members']),
-    Module('bonobo.execution'),
-    Module('bonobo.execution.contexts'),
-    Module('bonobo.execution.events'),
-    Module('bonobo.execution.strategies'),
-    Module('bonobo.util'),
+    Module("bonobo", title="Bonobo"),
+    Module("bonobo.config"),
+    Module("bonobo.constants", automodule_options=["no-members"]),
+    Module("bonobo.execution"),
+    Module("bonobo.execution.contexts"),
+    Module("bonobo.execution.events"),
+    Module("bonobo.execution.strategies"),
+    Module("bonobo.util"),
 ]
 
 
 def underlined_filter(txt, chr):
-    return txt + '\n' + chr * len(txt)
+    return txt + "\n" + chr * len(txt)
 
 
 env = Environment(
     loader=DictLoader(
         {
-            'module': '''
+            "module": """
 {{ (':mod:`'~title~' <'~name~'>`') | underlined('=') }}
 
 .. currentmodule:: {{ name }}
@@ -52,15 +52,15 @@ env = Environment(
 
 .. automodule:: {{ name }}
 {% for opt in automodule_options %}   :{{ opt }}:{{ "\n" }}{% endfor %}
-    '''[
+    """[
                 1:-1
             ]
-            + '\n'
+            + "\n"
         }
     )
 )
-env.filters['underlined'] = underlined_filter
+env.filters["underlined"] = underlined_filter
 
 for module in modules:
-    with open(module.get_path(), 'w+') as f:
-        f.write(env.get_template('module').render(module.asdict()))
+    with open(module.get_path(), "w+") as f:
+        f.write(env.get_template("module").render(module.asdict()))

bonobo/_api.py

@@ -6,7 +6,6 @@ All objects in this module are considered very safe to use, and backward compati
 to another is maximal.
 
 """
-
 from bonobo.execution.strategies import create_strategy
 from bonobo.nodes import *
 from bonobo.nodes import __all__ as _all_nodes
@@ -187,7 +186,7 @@ def get_examples_path(*pathsegments):
     import os
     import pathlib
 
-    return str(pathlib.Path(os.path.dirname(__file__), 'examples', *pathsegments))
+    return str(pathlib.Path(os.path.dirname(__file__), "examples", *pathsegments))
 
 
 @api.register
@@ -196,3 +195,4 @@ def open_examples_fs(*pathsegments):
 
 
 api.register_group(get_argument_parser, parse_args)
+

bonobo/_version.py

@@ -1 +1 @@
-__version__ = '0.6.3'
+__version__ = "0.6.3"

bonobo/commands/base.py

@@ -4,10 +4,11 @@ import runpy
 import sys
 from contextlib import contextmanager
 
+from mondrian import humanizer
+
 import bonobo.util.environ
 from bonobo.util import get_name
 from bonobo.util.environ import get_argument_parser, parse_args
-from mondrian import humanizer
 
 
 class BaseCommand:

bonobo/commands/convert.py

@@ -1,8 +1,9 @@
+from mondrian import humanizer
+
 import bonobo
 from bonobo.commands import BaseCommand
 from bonobo.registry import READER, WRITER, default_registry
 from bonobo.util.resolvers import _resolve_options, _resolve_transformations
-from mondrian import humanizer
 
 
 class ConvertCommand(BaseCommand):

bonobo/commands/init.py

@@ -1,9 +1,9 @@
 import os
 
 from jinja2 import Environment, FileSystemLoader
+from mondrian import humanizer
 
 from bonobo.commands import BaseCommand
-from mondrian import humanizer
 
 
 class InitCommand(BaseCommand):
@@ -31,16 +31,12 @@ class InitCommand(BaseCommand):
         with open(filename, "w+") as f:
             f.write(template.render(name=name))
 
-        print(
-            humanizer.Success(
-                "Generated {} using template {!r}.".format(filename, template_name)
-            )
-        )
+        print(humanizer.Success("Generated {} using template {!r}.".format(filename, template_name)))
 
     def create_package(self, *, filename):
         _, ext = os.path.splitext(filename)
-        if ext != '':
-            raise ValueError('Package names should not have an extension.')
+        if ext != "":
+            raise ValueError("Package names should not have an extension.")
 
         try:
             import medikit.commands
@@ -60,16 +56,16 @@ class InitCommand(BaseCommand):
         print(
             humanizer.Success(
                 'Package "{}" has been created.'.format(package_name),
-                '',
+                "",
                 "Install it...",
-                '',
+                "",
                 "    $ `pip install --editable {}`".format(filename),
-                '',
+                "",
                 "Then maybe run the example...",
-                '',
+                "",
                 "    $ `python -m {}`".format(package_name),
-                '',
-                "Enjoy!"
+                "",
+                "Enjoy!",
             )
         )
 

bonobo/commands/version.py

@@ -1,6 +1,7 @@
-from bonobo.commands import BaseCommand
 from mondrian import humanizer
 
+from bonobo.commands import BaseCommand
+
 
 def get_versions(*, all=False, quiet=None):
     import bonobo

bonobo/config/__init__.py

@@ -5,7 +5,7 @@ configurable transformations, either class-based or function-based.
 """
 
 from bonobo.config.configurables import Configurable
-from bonobo.config.functools import transformation_factory
+from bonobo.config.functools import transformation_factory, partial
 from bonobo.config.options import Method, Option
 from bonobo.config.processors import ContextProcessor, use_context, use_context_processor, use_raw_input, use_no_input
 from bonobo.config.services import Container, Exclusive, Service, use, create_container
@@ -23,6 +23,7 @@ __all__ = [
     "Option",
     "Service",
     "create_container",
+    "partial",
     "requires",
     "transformation_factory",
     "use",

bonobo/config/functools.py

@@ -1,6 +1,9 @@
 import functools
 import itertools
 
+from bonobo.config.services import use
+from bonobo.util import get_name
+
 
 def transformation_factory(f):
     @functools.wraps(f)
@@ -14,3 +17,11 @@ def transformation_factory(f):
     _transformation_factory._partial = True
 
     return _transformation_factory
+
+
+class partial(functools.partial):
+    @property
+    def __name__(self):
+        return get_name(self.func)
+    def using(self, *service_names):
+        return use(*service_names)(self)

bonobo/config/processors.py

@@ -1,4 +1,4 @@
-from collections import Iterable
+from collections.abc import Iterable
 from contextlib import contextmanager
 from functools import partial
 from inspect import signature

bonobo/config/services.py

@@ -68,7 +68,7 @@ class Container(dict):
         if len(args) == 1:
             if len(kwargs):
                 raise ValueError(
-                    'You can either use {} with one positional argument or with keyword arguments, not both.'.format(
+                    "You can either use {} with one positional argument or with keyword arguments, not both.".format(
                         cls.__name__
                     )
                 )

bonobo/nodes/io/csv.py

@@ -127,8 +127,7 @@ class CsvWriter(FileWriter, CsvHandler):
                 )
             context.writer(values)
         else:
-            for arg in values:
-                context.writer(ensure_tuple(arg))
+            context.writer(ensure_tuple(values))
 
         return NOT_MODIFIED
 

bonobo/util/bags.py

@@ -134,7 +134,7 @@ def BagType(typename, fields, *, verbose=False, module=None):
         if type(name) is not str:
             raise TypeError("Type names and field names must be strings, got {name!r}".format(name=name))
         if not isinstance(name, str):
-            raise TypeError('Type names and field names must be strings, got {name!r}'.format(name=name))
+            raise TypeError("Type names and field names must be strings, got {name!r}".format(name=name))
         if not i:
             if not name.isidentifier():
                 raise ValueError("Type names must be valid identifiers: {name!r}".format(name=name))

bonobo/util/environ.py

@@ -6,7 +6,7 @@ import warnings
 from contextlib import contextmanager
 
 __escape_decoder = codecs.getdecoder("unicode_escape")
-__posix_variable = re.compile("\$\{[^\}]*\}")
+__posix_variable = re.compile(r"\$\{[^\}]*\}")
 
 
 def parse_var(var):

bonobo/util/errors.py

@@ -24,7 +24,7 @@ def sweeten_errors():
             length = len(pre_re.sub("\\1\\2\\3", arg))
 
             arg = pre_re.sub(w("\\1") + term.bold("\\2") + w("\\3"), arg)
-            arg = re.sub("^  \$ (.*)", term.lightblack("  $ ") + term.reset("\\1"), arg)
+            arg = re.sub(r"^  \$ (.*)", term.lightblack("  $ ") + term.reset("\\1"), arg)
 
             return (arg, length)
 

bonobo/util/term.py

@@ -1,2 +1,2 @@
 CLEAR_EOL = "\033[0K"
-MOVE_CURSOR_UP = '\033[{}A'.format
+MOVE_CURSOR_UP = "\033[{}A".format

docs/_templates/alabaster/__init__.py

@@ -12,13 +12,13 @@ def get_path():
 
 
 def update_context(app, pagename, templatename, context, doctree):
-    context['alabaster_version'] = version.__version__
+    context["alabaster_version"] = version.__version__
 
 
 def setup(app):
     # add_html_theme is new in Sphinx 1.6+
-    if hasattr(app, 'add_html_theme'):
+    if hasattr(app, "add_html_theme"):
         theme_path = os.path.abspath(os.path.dirname(__file__))
-        app.add_html_theme('alabaster', theme_path)
-    app.connect('html-page-context', update_context)
-    return {'version': version.__version__, 'parallel_read_safe': True}
+        app.add_html_theme("alabaster", theme_path)
+    app.connect("html-page-context", update_context)
+    return {"version": version.__version__, "parallel_read_safe": True}

docs/_templates/alabaster/_version.py

@@ -1,2 +1,2 @@
 __version_info__ = (0, 7, 10)
-__version__ = '.'.join(map(str, __version_info__))
+__version__ = ".".join(map(str, __version_info__))

docs/conf.py

@@ -7,43 +7,43 @@ import sys
 
 import bonobo
 
-sys.path.insert(0, os.path.abspath('..'))
-sys.path.insert(0, os.path.abspath('_themes'))
+sys.path.insert(0, os.path.abspath(".."))
+sys.path.insert(0, os.path.abspath("_themes"))
 
 
 # -- General configuration ------------------------------------------------
 
 extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.autosummary',
-    'sphinx.ext.doctest',
-    'sphinx.ext.intersphinx',
-    'sphinx.ext.todo',
-    'sphinx.ext.coverage',
-    'sphinx.ext.ifconfig',
-    'sphinx.ext.viewcode',
-    'sphinx.ext.graphviz',
-    'sphinx_sitemap',
+    "sphinx.ext.autodoc",
+    "sphinx.ext.autosummary",
+    "sphinx.ext.doctest",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.todo",
+    "sphinx.ext.coverage",
+    "sphinx.ext.ifconfig",
+    "sphinx.ext.viewcode",
+    "sphinx.ext.graphviz",
+    "sphinx_sitemap",
 ]
 
-site_url = 'http://docs.bonobo-project.org/en/master/'
+site_url = "http://docs.bonobo-project.org/en/master/"
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
 # The suffix(es) of source filenames.
 # You can specify multiple suffix as a list of string:
 #
 # source_suffix = ['.rst', '.md']
-source_suffix = '.rst'
+source_suffix = ".rst"
 
 # The master toctree document.
-master_doc = 'index'
+master_doc = "index"
 
 # General information about the project.
-project = 'Bonobo'
-author = 'Romain Dorgueil'
-copyright = '2012-{}, {}'.format(datetime.datetime.now().year, author)
+project = "Bonobo"
+author = "Romain Dorgueil"
+copyright = "2012-{}, {}".format(datetime.datetime.now().year, author)
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -60,14 +60,14 @@ language = None
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This patterns also effect to html_static_path and html_extra_path
-exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
 
-autoclass_content = 'both'
-autodoc_member_order = 'groupwise'
-autodoc_default_flags = ['members', 'undoc-members', 'show-inheritance']
+autoclass_content = "both"
+autodoc_member_order = "groupwise"
+autodoc_default_flags = ["members", "undoc-members", "show-inheritance"]
 
 add_module_names = False
-pygments_style = 'sphinx'
+pygments_style = "sphinx"
 
 # If true, `todo` and `todoList` produce output, else they produce nothing.
 todo_include_todos = True
@@ -77,56 +77,56 @@ todo_include_todos = True
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
+html_theme = "alabaster"
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
 html_theme_options = {
-    'github_user': 'python-bonobo',
-    'github_repo': 'bonobo',
-    'github_button': 'true',
-    'github_banner': 'true',
-    'show_powered_by': 'false',
-    'show_related': 'true',
+    "github_user": "python-bonobo",
+    "github_repo": "bonobo",
+    "github_button": "true",
+    "github_banner": "true",
+    "show_powered_by": "false",
+    "show_related": "true",
 }
 
 html_sidebars = {
-    'index': [
-        'sidebarlogo.html',
-        'navigation.html',
-        'localtoc.html',
-        'sidebarintro.html',
-        'sourcelink.html',
-        'searchbox.html',
-        'sidebarinfos.html',
+    "index": [
+        "sidebarlogo.html",
+        "navigation.html",
+        "localtoc.html",
+        "sidebarintro.html",
+        "sourcelink.html",
+        "searchbox.html",
+        "sidebarinfos.html",
     ],
-    '**': [
-        'sidebarlogo.html',
-        'navigation.html',
-        'localtoc.html',
-        'relations.html',
-        'sourcelink.html',
-        'searchbox.html',
-        'sidebarinfos.html',
+    "**": [
+        "sidebarlogo.html",
+        "navigation.html",
+        "localtoc.html",
+        "relations.html",
+        "sourcelink.html",
+        "searchbox.html",
+        "sidebarinfos.html",
     ],
 }
 
-html_theme_path = ['_themes']
-html_additional_pages = {'index': 'index.html'}
+html_theme_path = ["_themes"]
+html_additional_pages = {"index": "index.html"}
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+html_static_path = ["_static"]
 html_show_sphinx = False
 
-graphviz_output_format = 'svg'
+graphviz_output_format = "svg"
 
 # -- Options for HTMLHelp output ------------------------------------------
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'Bonobodoc'
+htmlhelp_basename = "Bonobodoc"
 
 # -- Options for LaTeX output ---------------------------------------------
 
@@ -148,13 +148,13 @@ latex_elements = {
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
-latex_documents = [(master_doc, 'Bonobo.tex', 'Bonobo Documentation', 'Romain Dorgueil', 'manual')]
+latex_documents = [(master_doc, "Bonobo.tex", "Bonobo Documentation", "Romain Dorgueil", "manual")]
 
 # -- Options for manual page output ---------------------------------------
 
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
-man_pages = [(master_doc, 'bonobo', 'Bonobo Documentation', [author], 1)]
+man_pages = [(master_doc, "bonobo", "Bonobo Documentation", [author], 1)]
 
 # -- Options for Texinfo output -------------------------------------------
 
@@ -164,12 +164,12 @@ man_pages = [(master_doc, 'bonobo', 'Bonobo Documentation', [author], 1)]
 texinfo_documents = [
     (
         master_doc,
-        'Bonobo',
-        'Bonobo Documentation',
+        "Bonobo",
+        "Bonobo Documentation",
         author,
-        'Bonobo',
-        'One line description of project.',
-        'Miscellaneous',
+        "Bonobo",
+        "One line description of project.",
+        "Miscellaneous",
     )
 ]
 
@@ -191,14 +191,14 @@ epub_copyright = copyright
 # epub_uid = ''
 
 # A list of files that should not be packed into the epub file.
-epub_exclude_files = ['search.html']
+epub_exclude_files = ["search.html"]
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {
-    'django': ('https://docs.djangoproject.com/en/2.0/', 'https://docs.djangoproject.com/en/2.0/_objects/'),
-    'fs': ('https://docs.pyfilesystem.org/en/latest/', None),
-    'python': ('https://docs.python.org/3', None),
-    'requests': ('http://docs.python-requests.org/en/master/', None),
+    "django": ("https://docs.djangoproject.com/en/2.0/", "https://docs.djangoproject.com/en/2.0/_objects/"),
+    "fs": ("https://docs.pyfilesystem.org/en/latest/", None),
+    "python": ("https://docs.python.org/3", None),
+    "requests": ("http://docs.python-requests.org/en/master/", None),
 }
 
 rst_epilog = """

docs/install.rst

@@ -89,7 +89,7 @@ of your python interpreter.
 
 .. note:: Once again, we use `develop` here. New features should go to `develop`, while bugfixes can go to `master`.
 
-If you can't find the "source" directory, try trunning this:
+If you can't find the "source" directory, try running this:
 
 .. code-block:: shell-session
 
@@ -122,7 +122,7 @@ Preview versions
 ----------------
 
 Sometimes, there are pre-versions available (before a major release, for example). By default, pip does not target
-pre-versions to avoid accidental upgrades to a potentially instable software, but you can easily opt-in:
+pre-versions to avoid accidental upgrades to a potentially unstable version, but you can easily opt-in:
 
 .. code-block:: shell-session
 
@@ -135,10 +135,10 @@ Supported platforms
 Linux, OSX and other Unixes
 ---------------------------
 
-Bonobo test suite runs continuously on Linux, and core developpers use both OSX and Linux machines. Also, there are jobs
+Bonobo test suite runs continuously on Linux, and core developers use both OSX and Linux machines. Also, there are jobs
 running on production linux machines everyday, so the support for those platforms should be quite excellent.
 
-If you're using some esotheric UNIX machine, there can be surprises (although we're not aware, yet). We do not support
+If you're using some esoteric UNIX machine, there can be surprises (although we're not aware, yet). We do not support
 officially those platforms, but if you can actually fix the problems on those systems, we'll be glad to integrate
 your patches (as long as it is tested, for both existing linux environments and your strange systems).
 

requirements-dev.txt

@@ -20,7 +20,6 @@ jinja2==2.10
 markupsafe==1.0
 more-itertools==4.3.0
 packaging==17.1
-pathlib2==2.3.2
 pluggy==0.7.1
 poyo==0.4.1
 py==1.5.4

requirements-docker.txt

@@ -23,7 +23,6 @@ requests==2.19.1
 semantic-version==2.6.0
 six==1.11.0
 stevedore==1.29.0
-typing==3.6.4
 unidecode==1.0.22
 urllib3==1.23
 websocket-client==0.48.0

requirements-sqlalchemy.txt

@@ -21,7 +21,6 @@ requests==2.19.1
 six==1.11.0
 sqlalchemy==1.2.10
 stevedore==1.29.0
-typing==3.6.4
 unidecode==1.0.22
 urllib3==1.23
 whistle==1.0.1

requirements.txt

@@ -19,7 +19,6 @@ pytz==2018.5
 requests==2.19.1
 six==1.11.0
 stevedore==1.29.0
-typing==3.6.4
 unidecode==1.0.22
 urllib3==1.23
 whistle==1.0.1

setup.py

@@ -2,10 +2,11 @@
 # All changes will be overriden.
 # Edit Projectfile and run “make update” (or “medikit update”) to regenerate.
 
-from setuptools import setup, find_packages
 from codecs import open
 from os import path
 
+from setuptools import find_packages, setup
+
 here = path.abspath(path.dirname(__file__))
 
 # Py3 compatibility hacks, borrowed from IPython.
@@ -20,76 +21,88 @@ except NameError:
 
 # Get the long description from the README file
 try:
-    with open(path.join(here, 'README.rst'), encoding='utf-8') as f:
+    with open(path.join(here, "README.rst"), encoding="utf-8") as f:
         long_description = f.read()
 except:
-    long_description = ''
+    long_description = ""
 
 # Get the classifiers from the classifiers file
-tolines = lambda c: list(filter(None, map(lambda s: s.strip(), c.split('\n'))))
+tolines = lambda c: list(filter(None, map(lambda s: s.strip(), c.split("\n"))))
 try:
-    with open(path.join(here, 'classifiers.txt'), encoding='utf-8') as f:
+    with open(path.join(here, "classifiers.txt"), encoding="utf-8") as f:
         classifiers = tolines(f.read())
 except:
     classifiers = []
 
 version_ns = {}
 try:
-    execfile(path.join(here, 'bonobo/_version.py'), version_ns)
+    execfile(path.join(here, "bonobo/_version.py"), version_ns)
 except EnvironmentError:
-    version = 'dev'
+    version = "dev"
 else:
-    version = version_ns.get('__version__', 'dev')
+    version = version_ns.get("__version__", "dev")
 
 setup(
-    author='Romain Dorgueil',
-    author_email='romain@dorgueil.net',
-    data_files=[('share/jupyter/nbextensions/bonobo-jupyter', [
-        'bonobo/contrib/jupyter/static/extension.js',
-        'bonobo/contrib/jupyter/static/index.js',
-        'bonobo/contrib/jupyter/static/index.js.map'
-    ])],
-    description=(
-        'Bonobo, a simple, modern and atomic extract-transform-load toolkit for '
-        'python 3.5+.'),
-    license='Apache License, Version 2.0',
-    name='bonobo',
-    python_requires='>=3.5',
+    author="Romain Dorgueil",
+    author_email="romain@dorgueil.net",
+    data_files=[
+        (
+            "share/jupyter/nbextensions/bonobo-jupyter",
+            [
+                "bonobo/contrib/jupyter/static/extension.js",
+                "bonobo/contrib/jupyter/static/index.js",
+                "bonobo/contrib/jupyter/static/index.js.map",
+            ],
+        )
+    ],
+    description=("Bonobo, a simple, modern and atomic extract-transform-load toolkit for " "python 3.5+."),
+    license="Apache License, Version 2.0",
+    name="bonobo",
+    python_requires=">=3.5",
     version=version,
     long_description=long_description,
     classifiers=classifiers,
-    packages=find_packages(exclude=['ez_setup', 'example', 'test']),
+    packages=find_packages(exclude=["ez_setup", "example", "test"]),
     include_package_data=True,
     install_requires=[
-        'cached-property (~= 1.4)', 'fs (~= 2.0)', 'graphviz (>= 0.8, < 0.9)',
-        'jinja2 (~= 2.9)', 'mondrian (~= 0.8)', 'packaging (~= 17.0)',
-        'psutil (~= 5.4)', 'python-slugify (~= 1.2.0)', 'requests (~= 2.0)',
-        'stevedore (~= 1.27)', 'whistle (~= 1.0)'
+        "cached-property (~= 1.4)",
+        "fs (~= 2.0)",
+        "graphviz (>= 0.8, < 0.9)",
+        "jinja2 (~= 2.9)",
+        "mondrian (~= 0.8)",
+        "packaging (~= 17.0)",
+        "psutil (~= 5.4)",
+        "python-slugify (~= 1.2.0)",
+        "requests (~= 2.0)",
+        "stevedore (~= 1.27)",
+        "whistle (~= 1.0)",
     ],
     extras_require={
-        'dev': [
-            'cookiecutter (>= 1.5, < 1.6)', 'coverage (~= 4.4)',
-            'pytest (~= 3.4)', 'pytest-cov (~= 2.5)',
-            'pytest-timeout (>= 1, < 2)', 'sphinx (~= 1.7)',
-            'sphinx-sitemap (>= 0.2, < 0.3)'
+        "dev": [
+            "cookiecutter (>= 1.5, < 1.6)",
+            "coverage (~= 4.4)",
+            "pytest (~= 3.4)",
+            "pytest-cov (~= 2.5)",
+            "pytest-timeout (>= 1, < 2)",
+            "sphinx (~= 1.7)",
+            "sphinx-sitemap (>= 0.2, < 0.3)",
         ],
-        'docker': ['bonobo-docker (~= 0.6.0a1)'],
-        'jupyter': ['ipywidgets (~= 6.0)', 'jupyter (~= 1.0)'],
-        'sqlalchemy': ['bonobo-sqlalchemy (~= 0.6.0a1)']
+        "docker": ["bonobo-docker (~= 0.6.0a1)"],
+        "jupyter": ["ipywidgets (~= 6.0)", "jupyter (~= 1.0)"],
+        "sqlalchemy": ["bonobo-sqlalchemy (~= 0.6.0a1)"],
     },
     entry_points={
-        'bonobo.commands': [
-            'convert = bonobo.commands.convert:ConvertCommand',
-            'download = bonobo.commands.download:DownloadCommand',
-            'examples = bonobo.commands.examples:ExamplesCommand',
-            'init = bonobo.commands.init:InitCommand',
-            'inspect = bonobo.commands.inspect:InspectCommand',
-            'run = bonobo.commands.run:RunCommand',
-            'version = bonobo.commands.version:VersionCommand'
+        "bonobo.commands": [
+            "convert = bonobo.commands.convert:ConvertCommand",
+            "download = bonobo.commands.download:DownloadCommand",
+            "examples = bonobo.commands.examples:ExamplesCommand",
+            "init = bonobo.commands.init:InitCommand",
+            "inspect = bonobo.commands.inspect:InspectCommand",
+            "run = bonobo.commands.run:RunCommand",
+            "version = bonobo.commands.version:VersionCommand",
         ],
-        'console_scripts': ['bonobo = bonobo.commands:entrypoint']
+        "console_scripts": ["bonobo = bonobo.commands:entrypoint"],
     },
-    url='https://www.bonobo-project.org/',
-    download_url='https://github.com/python-bonobo/bonobo/tarball/{version}'.
-    format(version=version),
+    url="https://www.bonobo-project.org/",
+    download_url="https://github.com/python-bonobo/bonobo/tarball/{version}".format(version=version),
 )

tests/config/test_services.py

@@ -131,20 +131,20 @@ def test_requires():
 
 
 def test_constructor():
-    c1 = Container(foo='foo', bar='bar')
+    c1 = Container(foo="foo", bar="bar")
     assert 2 == len(c1)
 
-    c2 = Container({'foo': 'foo', 'bar': 'bar'})
+    c2 = Container({"foo": "foo", "bar": "bar"})
     assert 2 == len(c2)
 
-    assert c1['foo'] == c2['foo']
-    assert c1['bar'] == c2['bar']
+    assert c1["foo"] == c2["foo"]
+    assert c1["bar"] == c2["bar"]
 
     with pytest.raises(ValueError):
-        Container({'bar': 'bar'}, foo='foo')
+        Container({"bar": "bar"}, foo="foo")
 
 
-@pytest.mark.parametrize('services', [None, {}])
+@pytest.mark.parametrize("services", [None, {}])
 def test_create_container_empty_values(services):
     c = create_container(services)
     assert len(c) == 2

tests/nodes/io/test_csv.py

@@ -63,9 +63,9 @@ class CsvReaderTest(Csv, ReaderTest, TestCase):
     def test_output_type(self, context):
         context.write_sync(EMPTY)
         context.stop()
-        self.check_output(context, prepend=[('id', 'name')])
+        self.check_output(context, prepend=[("id", "name")])
 
-    @incontext(output_fields=('x', 'y'), skip=1)
+    @incontext(output_fields=("x", "y"), skip=1)
     def test_output_fields(self, context):
         context.write_sync(EMPTY)
         context.stop()
@@ -100,10 +100,10 @@ class CsvWriterTest(Csv, WriterTest, TestCase):
     @incontext()
     def test_nofields_multiple_args(self, context):
         # multiple args are iterated onto and flattened in output
-        context.write_sync((L1, L2), (L3, L4))
+        context.write_sync(L1, L2, L3, L4)
         context.stop()
 
-        assert self.readlines() == ('a,hey', 'b,bee', 'c,see', 'd,dee')
+        assert self.readlines() == ("a,hey", "b,bee", "c,see", "d,dee")
 
     @incontext()
     def test_nofields_multiple_args_length_mismatch(self, context):
@@ -111,18 +111,10 @@ class CsvWriterTest(Csv, WriterTest, TestCase):
         with pytest.raises(TypeError):
             context.write_sync((L1, L2), (L3,))
 
-    @incontext()
-    def test_nofields_single_arg(self, context):
-        # single args are just dumped, shapes can vary.
-        context.write_sync((L1,), (LL,), (L3,))
-        context.stop()
-
-        assert self.readlines() == ("a,hey", "i,have,more,values", "c,see")
-
     @incontext()
     def test_nofields_empty_args(self, context):
         # empty calls are ignored
         context.write_sync(EMPTY, EMPTY, EMPTY)
         context.stop()
 
-        assert self.readlines() == ()
+        assert self.readlines() == ('', '', '')