Fix pre-commit

Signed-off-by: Cristian Le <cristian.le@mpsd.mpg.de>

README.md

@@ -7,17 +7,17 @@
 [![License](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](https://opensource.org/licenses/BSD-3-Clause)
 
 
-**click-option-group** is a Click-extension package that adds option groups 
+**click-option-group** is a Click-extension package that adds option groups
 missing in [Click](https://github.com/pallets/click/).
 
 ## Aim and Motivation
 
-Click is a package for creating powerful and beautiful command line interfaces (CLI) in Python, 
+Click is a package for creating powerful and beautiful command line interfaces (CLI) in Python,
 but it has no the functionality for creating option groups.
 
-Option groups are convenient mechanism for logical structuring CLI, also it allows you to set 
-the specific behavior and set the relationship among grouped options (mutually exclusive options for example). 
-Moreover, [argparse](https://docs.python.org/3/library/argparse.html) stdlib package contains this 
+Option groups are convenient mechanism for logical structuring CLI, also it allows you to set
+the specific behavior and set the relationship among grouped options (mutually exclusive options for example).
+Moreover, [argparse](https://docs.python.org/3/library/argparse.html) stdlib package contains this
 functionality out of the box.
 
 At the same time, many Click users need this functionality.
@@ -28,12 +28,12 @@ You can read interesting discussions about it in the following issues:
 * [issue 509](https://github.com/pallets/click/issues/509)
 * [issue 1137](https://github.com/pallets/click/issues/1137)
 
-The aim of this package is to provide group options with extensible functionality 
+The aim of this package is to provide group options with extensible functionality
 using canonical and clean API (Click-like API as far as possible).
 
 ## Quickstart
 
-### Installing 
+### Installing
 
 Install and update using pip:
 
@@ -44,7 +44,7 @@ pip install -U click-option-group
 ### A Simple Example
 
 Here is a simple example how to use option groups in your Click-based CLI.
-Just use `optgroup` for declaring option groups by decorating 
+Just use `optgroup` for declaring option groups by decorating
 your command function in Click-like API style.
 
 ```python
@@ -54,13 +54,13 @@ import click
 from click_option_group import optgroup, RequiredMutuallyExclusiveOptionGroup
 
 @click.command()
-@optgroup.group('Server configuration', 
+@optgroup.group('Server configuration',
                 help='The configuration of some server connection')
 @optgroup.option('-h', '--host', default='localhost', help='Server host name')
 @optgroup.option('-p', '--port', type=int, default=8888, help='Server port')
 @optgroup.option('-n', '--attempts', type=int, default=3, help='The number of connection attempts')
 @optgroup.option('-t', '--timeout', type=int, default=30, help='The server response timeout')
-@optgroup.group('Input data sources', cls=RequiredMutuallyExclusiveOptionGroup, 
+@optgroup.group('Input data sources', cls=RequiredMutuallyExclusiveOptionGroup,
                 help='The sources of the input data')
 @optgroup.option('--tsv-file', type=click.File(), help='CSV/TSV input data file')
 @optgroup.option('--json-file', type=click.File(), help='JSON input data file')

docs/conf.py

@@ -13,17 +13,17 @@
 import os
 import sys
 
-sys.path.insert(0, os.path.abspath('.'))
-
 from pallets_sphinx_themes import ProjectLink
 from click_option_group import __version__  # noqa
 
+sys.path.insert(0, os.path.abspath("."))
+
 
 # -- Project information -----------------------------------------------------
 
-project = 'click-option-group'
-copyright = '2019-2020, Eugene Prilepin'
-author = 'Eugene Prilepin'
+project = "click-option-group"
+copyright = "2019-2020, Eugene Prilepin"
+author = "Eugene Prilepin"
 
 # The full version, including alpha/beta/rc tags
 release = __version__
@@ -35,40 +35,43 @@
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.autosummary',
-    'sphinx.ext.intersphinx',
-    'pallets_sphinx_themes',
-    'm2r2',
+    "sphinx.ext.autodoc",
+    "sphinx.ext.autosummary",
+    "sphinx.ext.intersphinx",
+    "pallets_sphinx_themes",
+    "m2r2",
 ]
 
-autodoc_member_order = 'bysource'
+autodoc_member_order = "bysource"
 
-intersphinx_mapping = {
-    'Click': ('https://click.palletsprojects.com', None)
-}
+intersphinx_mapping = {"Click": ("https://click.palletsprojects.com", None)}
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This pattern also affects html_static_path and html_extra_path.
-exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
 
 
 # -- 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 = 'click'
+html_theme = "click"
 
 html_context = {
     "project_links": [
         ProjectLink("PyPI releases", "https://pypi.org/project/click-option-group/"),
-        ProjectLink("Source Code", "https://github.com/click-contrib/click-option-group/"),
-        ProjectLink("Issue Tracker", "https://github.com/click-contrib/click-option-group/issues/"),
+        ProjectLink(
+            "Source Code", "https://github.com/click-contrib/click-option-group/"
+        ),
+        ProjectLink(
+            "Issue Tracker",
+            "https://github.com/click-contrib/click-option-group/issues/",
+        ),
     ]
 }
 
@@ -80,4 +83,4 @@
 # 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"]

tests/conftest.py

@@ -5,6 +5,6 @@
 import pytest
 
 
-@pytest.fixture(scope='function')
+@pytest.fixture(scope="function")
 def runner():
     return CliRunner()