Style - Re-Apply black following the isort cleanup

Change with isort triggered change with black.

17 files changed, 216 insertions, 201 deletions

diff --git a/doc/conf.py b/doc/conf.py
index 16bfb7eb9..f71c4d341 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -25,204 +25,204 @@ from pylint.__pkginfo__ import version
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.append(os.path.abspath('exts'))
+sys.path.append(os.path.abspath("exts"))
 
 # -- General configuration -----------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
-#needs_sphinx = '1.0'
+# needs_sphinx = '1.0'
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
-    'pylint_features',
-    'pylint_extensions',
-    'sphinx.ext.autosectionlabel',
-    'sphinx.ext.intersphinx',
+    "pylint_features",
+    "pylint_extensions",
+    "sphinx.ext.autosectionlabel",
+    "sphinx.ext.intersphinx",
 ]
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
 # The suffix of source filenames.
-source_suffix = '.rst'
+source_suffix = ".rst"
 
 # The encoding of source files.
-#source_encoding = 'utf-8-sig'
+# source_encoding = 'utf-8-sig'
 
 # The master toctree document.
-master_doc = 'index'
+master_doc = "index"
 
 # General information about the project.
-project = 'Pylint'
+project = "Pylint"
 current_year = datetime.utcnow().year
-copyright = '2003-{year}, Logilab, PyCQA and contributors'.format(year=current_year)
+copyright = "2003-{year}, Logilab, PyCQA and contributors".format(year=current_year)
 
 # The full version, including alpha/beta/rc tags.
 release = version
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
-#language = None
+# language = None
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
-#today = ''
+# today = ''
 # Else, today_fmt is used as the format for a strftime call.
-#today_fmt = '%B %d, %Y'
+# today_fmt = '%B %d, %Y'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
-exclude_patterns = ['_build']
+exclude_patterns = ["_build"]
 
 # The reST default role (used for this markup: `text`) to use for all documents.
-#default_role = None
+# default_role = None
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
+# add_function_parentheses = True
 
 # If true, the current module name will be prepended to all description
 # unit titles (such as .. function::).
-#add_module_names = True
+# add_module_names = True
 
 # If true, sectionauthor and moduleauthor directives will be shown in the
 # output. They are ignored by default.
-#show_authors = False
+# show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = "sphinx"
 
 # A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
+# modindex_common_prefix = []
 
 
 # -- Options for HTML output ---------------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'python_docs_theme'
+html_theme = "python_docs_theme"
 
 # 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 = {
-    'collapsiblesidebar': True,
-    'issues_url': 'https://github.com/pycqa/pylint/issues/new',
-    'root_name': 'PyCQA',
-    'root_url': 'http://meta.pycqa.org/en/latest/',
+    "collapsiblesidebar": True,
+    "issues_url": "https://github.com/pycqa/pylint/issues/new",
+    "root_name": "PyCQA",
+    "root_url": "http://meta.pycqa.org/en/latest/",
 }
 
 # Add any paths that contain custom themes here, relative to this directory.
-#html_theme_path = []
+# html_theme_path = []
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
-#html_title = None
+# html_title = None
 
 # A shorter title for the navigation bar.  Default is the same as html_title.
-#html_short_title = None
+# html_short_title = None
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-#html_logo = None
+# html_logo = None
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
-#html_favicon = None
+# html_favicon = None
 
 # 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']
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
-#html_last_updated_fmt = '%b %d, %Y'
+# html_last_updated_fmt = '%b %d, %Y'
 
 smartquotes = False
 
 # Custom sidebar templates, maps document names to template names.
 html_sidebars = {
-    '**': [
-        'localtoc.html',
-        'globaltoc.html',
-        'relations.html',
-        'sourcelink.html'
-        ]
+    "**": ["localtoc.html", "globaltoc.html", "relations.html", "sourcelink.html"]
 }
 
 # Additional templates that should be rendered to pages, maps page names to
 # template names.
-#html_additional_pages = {}
+# html_additional_pages = {}
 
 # If false, no module index is generated.
-#html_domain_indices = True
+# html_domain_indices = True
 
 # If false, no index is generated.
-#html_use_index = True
+# html_use_index = True
 
 # If true, the index is split into individual pages for each letter.
-#html_split_index = False
+# html_split_index = False
 
 # If true, links to the reST sources are added to the pages.
 html_show_sourcelink = True
 
 # If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
-#html_show_sphinx = True
+# html_show_sphinx = True
 
 # If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
-#html_show_copyright = True
+# html_show_copyright = True
 
 # If true, an OpenSearch description file will be output, and all pages will
 # contain a <link> tag referring to it.  The value of this option must be the
 # base URL from which the finished HTML is served.
-#html_use_opensearch = ''
+# html_use_opensearch = ''
 
 # This is the file name suffix for HTML files (e.g. ".xhtml").
-#html_file_suffix = None
+# html_file_suffix = None
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'Pylintdoc'
+htmlhelp_basename = "Pylintdoc"
 
 
 # -- Options for LaTeX output --------------------------------------------------
 
 # The paper size ('letter' or 'a4').
-#latex_paper_size = 'letter'
+# latex_paper_size = 'letter'
 
 # The font size ('10pt', '11pt' or '12pt').
-#latex_font_size = '10pt'
+# latex_font_size = '10pt'
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass [howto/manual]).
 latex_documents = [
-  ('index', 'Pylint.tex', 'Pylint Documentation',
-   'Logilab, PyCQA and contributors', 'manual'),
+    (
+        "index",
+        "Pylint.tex",
+        "Pylint Documentation",
+        "Logilab, PyCQA and contributors",
+        "manual",
+    )
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
 # the title page.
-#latex_logo = None
+# latex_logo = None
 
 # For "manual" documents, if this is true, then toplevel headings are parts,
 # not chapters.
-#latex_use_parts = False
+# latex_use_parts = False
 
 # If true, show page references after internal links.
-#latex_show_pagerefs = False
+# latex_show_pagerefs = False
 
 # If true, show URL addresses after external links.
-#latex_show_urls = False
+# latex_show_urls = False
 
 # Additional stuff for the LaTeX preamble.
-#latex_preamble = ''
+# latex_preamble = ''
 
 # Documents to append as an appendix to all manuals.
-#latex_appendices = []
+# latex_appendices = []
 
 # If false, no module index is generated.
-#latex_domain_indices = True
+# latex_domain_indices = True
 
 
 # -- Options for manual page output --------------------------------------------
@@ -230,13 +230,12 @@ latex_documents = [
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('index', 'pylint', 'Pylint Documentation',
-     ['Logilab, PyCQA and contributors'], 1)
+    ("index", "pylint", "Pylint Documentation", ["Logilab, PyCQA and contributors"], 1)
 ]
 
 intersphinx_mapping = {
-    'astroid': ('http://astroid.readthedocs.io/en/latest/', None),
-    'python': ('https://docs.python.org/3', None),
+    "astroid": ("http://astroid.readthedocs.io/en/latest/", None),
+    "python": ("https://docs.python.org/3", None),
 }
 
 # Prevent label issues due to colliding section names
diff --git a/doc/exts/pylint_extensions.py b/doc/exts/pylint_extensions.py
index 2e1d82163..dd660767c 100755
--- a/doc/exts/pylint_extensions.py
+++ b/doc/exts/pylint_extensions.py
@@ -18,28 +18,27 @@ from pylint.lint import PyLinter
 # 1) They are deprecated, why document them moving forward?
 # 2) We can't load the deprecated module and the newly renamed module at the
 #    same time without getting naming conflicts
-DEPRECATED_MODULES = [
-    'check_docs',  # ==> docparams
-]
+DEPRECATED_MODULES = ["check_docs"]  # ==> docparams
+
 
 def builder_inited(app):
     """Output full documentation in ReST format for all extension modules"""
     # PACKAGE/docs/exts/pylint_extensions.py --> PACKAGE/
     base_path = os.path.dirname(
-        os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+        os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+    )
     # PACKAGE/ --> PACKAGE/pylint/extensions
-    ext_path = os.path.join(base_path, 'pylint', 'extensions')
+    ext_path = os.path.join(base_path, "pylint", "extensions")
     modules = []
     doc_files = {}
     for filename in os.listdir(ext_path):
         name, ext = os.path.splitext(filename)
-        if name[0] == '_' or name in DEPRECATED_MODULES:
+        if name[0] == "_" or name in DEPRECATED_MODULES:
             continue
-        if ext == '.py':
-            modules.append('pylint.extensions.%s' % name)
-        elif ext == '.rst':
-            doc_files['pylint.extensions.' + name] = os.path.join(ext_path,
-                                                                  filename)
+        if ext == ".py":
+            modules.append("pylint.extensions.%s" % name)
+        elif ext == ".rst":
+            doc_files["pylint.extensions." + name] = os.path.join(ext_path, filename)
     modules.sort()
     if not modules:
         sys.exit("No Pylint extensions found?")
@@ -47,29 +46,35 @@ def builder_inited(app):
     linter = PyLinter()
     linter.load_plugin_modules(modules)
 
-    extensions_doc = os.path.join(base_path, 'doc', 'technical_reference', 'extensions.rst')
-    with open(extensions_doc, 'w') as stream:
+    extensions_doc = os.path.join(
+        base_path, "doc", "technical_reference", "extensions.rst"
+    )
+    with open(extensions_doc, "w") as stream:
         stream.write("Optional Pylint checkers in the extensions module\n")
         stream.write("=================================================\n\n")
         stream.write("Pylint provides the following optional plugins:\n\n")
         for module in modules:
             stream.write("- :ref:`{}`\n".format(module))
         stream.write("\n")
-        stream.write("You can activate any or all of these extensions "
-                     "by adding a ``load-plugins`` line to the ``MASTER`` "
-                     "section of your ``.pylintrc``, for example::\n")
-        stream.write("\n    load-plugins=pylint.extensions.docparams,"
-                     "pylint.extensions.docstyle\n\n")
+        stream.write(
+            "You can activate any or all of these extensions "
+            "by adding a ``load-plugins`` line to the ``MASTER`` "
+            "section of your ``.pylintrc``, for example::\n"
+        )
+        stream.write(
+            "\n    load-plugins=pylint.extensions.docparams,"
+            "pylint.extensions.docstyle\n\n"
+        )
         by_module = get_plugins_info(linter, doc_files)
         for module, info in sorted(by_module.items()):
-            linter._print_checker_doc(info['name'], info, stream=stream)
+            linter._print_checker_doc(info["name"], info, stream=stream)
 
 
 def get_plugins_info(linter, doc_files):
     by_module = {}
 
     for checker in linter.get_checkers():
-        if checker.name == 'master':
+        if checker.name == "master":
             continue
         module = checker.__module__
         # Plugins only - skip over core checkers
@@ -80,32 +85,32 @@ def get_plugins_info(linter, doc_files):
         doc = ""
         doc_file = doc_files.get(module)
         if doc_file:
-            with open(doc_file, 'r') as f:
+            with open(doc_file, "r") as f:
                 doc = f.read()
 
         try:
-            by_module[module]['options'] += checker.options_and_values()
-            by_module[module]['msgs'].update(checker.msgs)
-            by_module[module]['reports'] += checker.reports
-            by_module[module]['doc'] += doc
-            by_module[module]['name'] += checker.name
-            by_module[module]['module'] += module
+            by_module[module]["options"] += checker.options_and_values()
+            by_module[module]["msgs"].update(checker.msgs)
+            by_module[module]["reports"] += checker.reports
+            by_module[module]["doc"] += doc
+            by_module[module]["name"] += checker.name
+            by_module[module]["module"] += module
         except KeyError:
             by_module[module] = {
-                'options': list(checker.options_and_values()),
-                'msgs':    dict(checker.msgs),
-                'reports': list(checker.reports),
-                'doc':     doc,
-                'name':    checker.name,
-                'module':  module,
+                "options": list(checker.options_and_values()),
+                "msgs": dict(checker.msgs),
+                "reports": list(checker.reports),
+                "doc": doc,
+                "name": checker.name,
+                "module": module,
             }
 
     return by_module
 
 
 def setup(app):
-    app.connect('builder-inited', builder_inited)
-    return {'version': sphinx.__display_version__}
+    app.connect("builder-inited", builder_inited)
+    return {"version": sphinx.__display_version__}
 
 
 if __name__ == "__main__":
diff --git a/doc/exts/pylint_features.py b/doc/exts/pylint_features.py
index 2ff0e52a7..4803efc9a 100755
--- a/doc/exts/pylint_features.py
+++ b/doc/exts/pylint_features.py
@@ -15,12 +15,13 @@ from pylint.lint import PyLinter
 def builder_inited(app):
     # PACKAGE/docs/exts/pylint_extensions.py --> PACKAGE/
     base_path = os.path.dirname(
-        os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+        os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+    )
     linter = PyLinter()
     linter.load_default_plugins()
 
-    features = os.path.join(base_path, 'doc', 'technical_reference', 'features.rst')
-    with open(features, 'w') as stream:
+    features = os.path.join(base_path, "doc", "technical_reference", "features.rst")
+    with open(features, "w") as stream:
         stream.write("Pylint features\n")
         stream.write("===============\n\n")
         stream.write(".. generated by pylint --full-documentation\n\n")
@@ -28,8 +29,9 @@ def builder_inited(app):
 
 
 def setup(app):
-    app.connect('builder-inited', builder_inited)
-    return {'version': sphinx.__display_version__}
+    app.connect("builder-inited", builder_inited)
+    return {"version": sphinx.__display_version__}
+
 
 if __name__ == "__main__":
     builder_inited(None)
diff --git a/examples/custom.py b/examples/custom.py
index 039b018b8..7ee97bb5f 100644
--- a/examples/custom.py
+++ b/examples/custom.py
@@ -14,7 +14,7 @@ class MyAstroidChecker(BaseChecker):
     __implements__ = IAstroidChecker
 
     # The name defines a custom section of the config for this checker.
-    name = 'custom'
+    name = "custom"
     # The priority indicates the order that pylint will run the checkers.
     priority = -1
     # This class variable declares the messages (ie the warnings and errors)
@@ -24,9 +24,7 @@ class MyAstroidChecker(BaseChecker):
         # a unique symbol that identifies the message,
         # and a detailed help message
         # that will be included in the documentation.
-        'W0001': ('Message that will be emitted',
-                  'message-symbol',
-                  'Message help')
+        "W0001": ("Message that will be emitted", "message-symbol", "Message help")
     }
     # This class variable declares the options
     # that are configurable by the user.
@@ -35,12 +33,16 @@ class MyAstroidChecker(BaseChecker):
         # and in config files, and a dictionary of arguments
         # (similar to those to those to
         # argparse.ArgumentParser.add_argument).
-        ('store-locals-indicator',
-         {'default': 'properties',
-          'help': ('The expression name that indicates that the locals should '
-                   'be stored'),
-          },
-         ),
+        (
+            "store-locals-indicator",
+            {
+                "default": "properties",
+                "help": (
+                    "The expression name that indicates that the locals should "
+                    "be stored"
+                ),
+            },
+        ),
     )
 
     def visit_call(self, node):
@@ -51,10 +53,12 @@ class MyAstroidChecker(BaseChecker):
         :param node: The node to check.
         :type node: astroid.node_classes.Call
         """
-        if not (isinstance(node.func, astroid.Attribute)
-                and isinstance(node.func.expr, astroid.Name)
-                and node.func.expr.name == self.config.store_locals_indicator
-                and node.func.attrname == 'create'):
+        if not (
+            isinstance(node.func, astroid.Attribute)
+            and isinstance(node.func.expr, astroid.Name)
+            and node.func.expr.name == self.config.store_locals_indicator
+            and node.func.attrname == "create"
+        ):
             return
         in_class = node.frame()
         for param in node.args:
diff --git a/examples/custom_raw.py b/examples/custom_raw.py
index fb28d4931..63e4aeb8e 100644
--- a/examples/custom_raw.py
+++ b/examples/custom_raw.py
@@ -9,12 +9,17 @@ class MyRawChecker(BaseChecker):
 
     __implements__ = IRawChecker
 
-    name = 'custom_raw'
-    msgs = {'W9901': ('use \\ for line continuation',
-                      'backslash-line-continuation',
-                      ('Used when a \\ is used for a line continuation instead'
-                       ' of using triple quoted string or parenthesis.')),
-            }
+    name = "custom_raw"
+    msgs = {
+        "W9901": (
+            "use \\ for line continuation",
+            "backslash-line-continuation",
+            (
+                "Used when a \\ is used for a line continuation instead"
+                " of using triple quoted string or parenthesis."
+            ),
+        )
+    }
     options = ()
 
     def process_module(self, node):
@@ -24,9 +29,8 @@ class MyRawChecker(BaseChecker):
         """
         with node.stream() as stream:
             for (lineno, line) in enumerate(stream):
-                if line.rstrip().endswith('\\'):
-                    self.add_message('backslash-line-continuation',
-                                     line=lineno)
+                if line.rstrip().endswith("\\"):
+                    self.add_message("backslash-line-continuation", line=lineno)
 
 
 def register(linter):
diff --git a/pylint/__main__.py b/pylint/__main__.py
index 7eca11929..e12309b4d 100644
--- a/pylint/__main__.py
+++ b/pylint/__main__.py
@@ -1,4 +1,3 @@
-
 # Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 # For details: https://github.com/PyCQA/pylint/blob/master/COPYING
 
diff --git a/pylint/checkers/similar.py b/pylint/checkers/similar.py
index d79785d66..f65f533cd 100644
--- a/pylint/checkers/similar.py
+++ b/pylint/checkers/similar.py
@@ -109,7 +109,7 @@ class Similar:
             % (
                 nb_total_lignes,
                 nb_lignes_dupliquees,
-                nb_lignes_dupliquees * 100. / nb_total_lignes,
+                nb_lignes_dupliquees * 100.0 / nb_total_lignes,
             )
         )
 
@@ -387,7 +387,7 @@ class SimilarChecker(BaseChecker, Similar):
             self.add_message("R0801", args=(len(couples), "\n".join(msg)))
             duplicated += num * (len(couples) - 1)
         stats["nb_duplicated_lines"] = duplicated
-        stats["percent_duplicated_lines"] = total and duplicated * 100. / total
+        stats["percent_duplicated_lines"] = total and duplicated * 100.0 / total
 
 
 def register(linter):
diff --git a/pylint/checkers/spelling.py b/pylint/checkers/spelling.py
index f1952e89f..c1a0eb2de 100644
--- a/pylint/checkers/spelling.py
+++ b/pylint/checkers/spelling.py
@@ -47,7 +47,6 @@ except ImportError:
         pass
 
 
-
 if enchant is not None:
     br = enchant.Broker()
     dicts = br.list_dicts()
diff --git a/pylint/config.py b/pylint/config.py
index a913f8619..8b0373f61 100644
--- a/pylint/config.py
+++ b/pylint/config.py
@@ -57,9 +57,6 @@ from pylint import utils
 # need a cleanup. It could be completely reengineered as well.
 
 
-
-
-
 USER_HOME = os.path.expanduser("~")
 if "PYLINTHOME" in os.environ:
     PYLINT_HOME = os.environ["PYLINTHOME"]
diff --git a/pylint/extensions/mccabe.py b/pylint/extensions/mccabe.py
index 69bc1775b..18baa2601 100644
--- a/pylint/extensions/mccabe.py
+++ b/pylint/extensions/mccabe.py
@@ -11,7 +11,6 @@ from __future__ import absolute_import
 
 from mccabe import PathGraph as Mccabe_PathGraph
 from mccabe import PathGraphingAstVisitor as Mccabe_PathGraphingAstVisitor
-
 from pylint import checkers
 from pylint.checkers.utils import check_messages
 from pylint.interfaces import HIGH, IAstroidChecker
diff --git a/pylint/lint.py b/pylint/lint.py
index d02410fa0..25129ecb1 100644
--- a/pylint/lint.py
+++ b/pylint/lint.py
@@ -86,7 +86,6 @@ except ImportError:
     multiprocessing = None  # type: ignore
 
 
-
 MANAGER = astroid.MANAGER
 
 
diff --git a/pylint/pyreverse/__init__.py b/pylint/pyreverse/__init__.py
index 8a12c4fec..9ca1da5c6 100644
--- a/pylint/pyreverse/__init__.py
+++ b/pylint/pyreverse/__init__.py
@@ -1,4 +1,3 @@
-
 # Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 # For details: https://github.com/PyCQA/pylint/blob/master/COPYING
 
diff --git a/pylint/test/extensions/test_check_docs.py b/pylint/test/extensions/test_check_docs.py
index 63825c415..1eacc9387 100644
--- a/pylint/test/extensions/test_check_docs.py
+++ b/pylint/test/extensions/test_check_docs.py
@@ -762,7 +762,7 @@ class TestParamDocChecker(CheckerTestCase):
             '''docstring foo
 
             :param y: bla
-            
+
             missing constructor parameter documentation
             '''
 
@@ -794,7 +794,7 @@ class TestParamDocChecker(CheckerTestCase):
 
             Args:
                 y: bla
-            
+
             missing constructor parameter documentation
             '''
 
@@ -828,7 +828,7 @@ class TestParamDocChecker(CheckerTestCase):
             ----------
             y:
                 bla
-            
+
             missing constructor parameter documentation
             '''
 
diff --git a/pylint/test/test_functional.py b/pylint/test/test_functional.py
index ae673bd13..128063165 100644
--- a/pylint/test/test_functional.py
+++ b/pylint/test/test_functional.py
@@ -22,10 +22,10 @@ import re
 import sys
 
 import pytest
-import six
-from six.moves import configparser
 
+import six
 from pylint import checkers, interfaces, lint, reporters
+from six.moves import configparser
 
 
 class test_dialect(csv.excel):
diff --git a/pylint/test/unittest_checker_typecheck.py b/pylint/test/unittest_checker_typecheck.py
index a418087c2..7bce396c5 100644
--- a/pylint/test/unittest_checker_typecheck.py
+++ b/pylint/test/unittest_checker_typecheck.py
@@ -50,7 +50,7 @@ class TestTypeChecker(CheckerTestCase):
         node = astroid.extract_node(
             """
         import optparse
-        optparse.THIS_does_not_EXIST 
+        optparse.THIS_does_not_EXIST
         """
         )
         with self.assertAddsMessages(
diff --git a/pylint/test/unittest_pyreverse_inspector.py b/pylint/test/unittest_pyreverse_inspector.py
index c4433ba51..fe5df9b98 100644
--- a/pylint/test/unittest_pyreverse_inspector.py
+++ b/pylint/test/unittest_pyreverse_inspector.py
@@ -94,7 +94,7 @@ def test_interfaces():
     class AnotherIFace(Interface): pass
     class Concrete0(object):
         __implements__ = MyIFace
-    class Concrete1:                     
+    class Concrete1:
         __implements__ = (MyIFace, AnotherIFace)
     class Concrete2:
         __implements__ = (MyIFace, AnotherIFace)
diff --git a/setup.py b/setup.py
index 77e0e2fff..2e76e4878 100644
--- a/setup.py
+++ b/setup.py
@@ -35,36 +35,37 @@ try:
     from setuptools import setup
     from setuptools.command import easy_install as easy_install_lib
     from setuptools.command import install_lib
+
     USE_SETUPTOOLS = 1
 except ImportError:
     from distutils.core import setup
     from distutils.command import install_lib
+
     USE_SETUPTOOLS = 0
     easy_install_lib = None
 
 
-
 base_dir = os.path.dirname(__file__)
 
 __pkginfo__ = {}
 with open(os.path.join(base_dir, "pylint", "__pkginfo__.py")) as f:
     exec(f.read(), __pkginfo__)
-modname = __pkginfo__['modname']
-distname = __pkginfo__.get('distname', modname)
-scripts = __pkginfo__.get('scripts', [])
-data_files = __pkginfo__.get('data_files', None)
-include_dirs = __pkginfo__.get('include_dirs', [])
-ext_modules = __pkginfo__.get('ext_modules', None)
-install_requires = __pkginfo__.get('install_requires', None)
-dependency_links = __pkginfo__.get('dependency_links', [])
-extras_require = __pkginfo__.get('extras_require', {})
-
-readme_path = join(base_dir, 'README.rst')
+modname = __pkginfo__["modname"]
+distname = __pkginfo__.get("distname", modname)
+scripts = __pkginfo__.get("scripts", [])
+data_files = __pkginfo__.get("data_files", None)
+include_dirs = __pkginfo__.get("include_dirs", [])
+ext_modules = __pkginfo__.get("ext_modules", None)
+install_requires = __pkginfo__.get("install_requires", None)
+dependency_links = __pkginfo__.get("dependency_links", [])
+extras_require = __pkginfo__.get("extras_require", {})
+
+readme_path = join(base_dir, "README.rst")
 if exists(readme_path):
     with open(readme_path) as stream:
         long_description = stream.read()
 else:
-    long_description = ''
+    long_description = ""
 
 
 def ensure_scripts(linux_scripts):
@@ -72,8 +73,9 @@ def ensure_scripts(linux_scripts):
     (taken from 4Suite)
     """
     from distutils import util
-    if util.get_platform()[:3] == 'win':
-        return linux_scripts + [script + '.bat' for script in linux_scripts]
+
+    if util.get_platform()[:3] == "win":
+        return linux_scripts + [script + ".bat" for script in linux_scripts]
     return linux_scripts
 
 
@@ -83,9 +85,9 @@ def get_packages(directory, prefix):
     for package in os.listdir(directory):
         absfile = join(directory, package)
         if isdir(absfile):
-            if exists(join(absfile, '__init__.py')):
+            if exists(join(absfile, "__init__.py")):
                 if prefix:
-                    result.append('%s.%s' % (prefix, package))
+                    result.append("%s.%s" % (prefix, package))
                 else:
                     result.append(package)
                 result += get_packages(absfile, result[-1])
@@ -93,7 +95,7 @@ def get_packages(directory, prefix):
 
 
 def _filter_tests(files):
-    testdir = join('pylint', 'test')
+    testdir = join("pylint", "test")
     return [f for f in files if testdir not in f]
 
 
@@ -101,6 +103,7 @@ class MyInstallLib(install_lib.install_lib):
     """extend install_lib command to handle package __init__.py and
     include_dirs variable if necessary
     """
+
     def run(self):
         """overridden from install_lib class"""
         install_lib.install_lib.run(self)
@@ -109,12 +112,13 @@ class MyInstallLib(install_lib.install_lib):
             for directory in include_dirs:
                 dest = join(self.install_dir, directory)
                 if sys.version_info >= (3, 0):
-                    exclude = {'invalid_encoded_data*', 'unknown_encoding*'}
+                    exclude = {"invalid_encoded_data*", "unknown_encoding*"}
                 else:
                     exclude = set()
                 shutil.rmtree(dest, ignore_errors=True)
-                shutil.copytree(directory, dest,
-                                ignore=shutil.ignore_patterns(*exclude))
+                shutil.copytree(
+                    directory, dest, ignore=shutil.ignore_patterns(*exclude)
+                )
 
     # override this since pip/easy_install attempt to byte compile test data
     # files, some of them being syntactically wrong by design, and this scares
@@ -125,6 +129,7 @@ class MyInstallLib(install_lib.install_lib):
 
 
 if easy_install_lib:
+
     class easy_install(easy_install_lib.easy_install):
         # override this since pip/easy_install attempt to byte compile
         # test data files, some of them being syntactically wrong by design,
@@ -137,43 +142,47 @@ if easy_install_lib:
 def install(**kwargs):
     """setup entry point"""
     if USE_SETUPTOOLS:
-        if '--force-manifest' in sys.argv:
-            sys.argv.remove('--force-manifest')
-    packages = [modname] + get_packages(join(base_dir, 'pylint'), modname)
+        if "--force-manifest" in sys.argv:
+            sys.argv.remove("--force-manifest")
+    packages = [modname] + get_packages(join(base_dir, "pylint"), modname)
     if USE_SETUPTOOLS:
         if install_requires:
-            kwargs['install_requires'] = install_requires
-            kwargs['dependency_links'] = dependency_links
-        kwargs['entry_points'] = {'console_scripts': [
-            'pylint = pylint:run_pylint',
-            'epylint = pylint:run_epylint',
-            'pyreverse = pylint:run_pyreverse',
-            'symilar = pylint:run_symilar',
-        ]}
-    kwargs['packages'] = packages
-    cmdclass = {'install_lib': MyInstallLib,
-                'build_py': build_py}
+            kwargs["install_requires"] = install_requires
+            kwargs["dependency_links"] = dependency_links
+        kwargs["entry_points"] = {
+            "console_scripts": [
+                "pylint = pylint:run_pylint",
+                "epylint = pylint:run_epylint",
+                "pyreverse = pylint:run_pyreverse",
+                "symilar = pylint:run_symilar",
+            ]
+        }
+    kwargs["packages"] = packages
+    cmdclass = {"install_lib": MyInstallLib, "build_py": build_py}
     if easy_install_lib:
-        cmdclass['easy_install'] = easy_install
-    return setup(name=distname,
-                 version=__pkginfo__['version'],
-                 license=__pkginfo__['license'],
-                 description=__pkginfo__['description'],
-                 long_description=long_description,
-                 author=__pkginfo__['author'],
-                 author_email=__pkginfo__['author_email'],
-                 url=__pkginfo__['web'],
-                 scripts=ensure_scripts(scripts),
-                 classifiers=__pkginfo__['classifiers'],
-                 data_files=data_files,
-                 ext_modules=ext_modules,
-                 cmdclass=cmdclass,
-                 extras_require=extras_require,
-                 test_suite='test',
-                 python_requires='>=3.4.*',
-                 setup_requires=['pytest-runner'],
-                 tests_require=['pytest'],
-                 **kwargs)
-
-if __name__ == '__main__':
+        cmdclass["easy_install"] = easy_install
+    return setup(
+        name=distname,
+        version=__pkginfo__["version"],
+        license=__pkginfo__["license"],
+        description=__pkginfo__["description"],
+        long_description=long_description,
+        author=__pkginfo__["author"],
+        author_email=__pkginfo__["author_email"],
+        url=__pkginfo__["web"],
+        scripts=ensure_scripts(scripts),
+        classifiers=__pkginfo__["classifiers"],
+        data_files=data_files,
+        ext_modules=ext_modules,
+        cmdclass=cmdclass,
+        extras_require=extras_require,
+        test_suite="test",
+        python_requires=">=3.4.*",
+        setup_requires=["pytest-runner"],
+        tests_require=["pytest"],
+        **kwargs
+    )
+
+
+if __name__ == "__main__":
     install()