Ran black, updated to pylint 2.x

.github/workflows/build.yml

@@ -40,7 +40,7 @@ jobs:
         source actions-ci/install.sh
     - name: Pip install pylint, black, & Sphinx
       run: |
-        pip install --force-reinstall pylint==1.9.2 black==19.10b0 Sphinx sphinx-rtd-theme
+        pip install --force-reinstall pylint black==19.10b0 Sphinx sphinx-rtd-theme
     - name: Library version
       run: git describe --dirty --always --tags
     - name: PyLint

adafruit_itertools/adafruit_itertools.py

@@ -59,8 +59,8 @@
 * Adafruit CircuitPython firmware for the supported boards:
   https://github.com/adafruit/circuitpython/releases
 """
-#pylint:disable=invalid-name,redefined-builtin,attribute-defined-outside-init
-#pylint:disable=stop-iteration-return,anomalous-backslash-in-string
+# pylint:disable=invalid-name,redefined-builtin,attribute-defined-outside-init
+# pylint:disable=stop-iteration-return,anomalous-backslash-in-string
 
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_Itertools.git"
@@ -146,8 +146,8 @@ def combinations(iterable, r):
         else:
             return
         indices[index] += 1
-        for j in range(index+1, r):
-            indices[j] = indices[j-1] + 1
+        for j in range(index + 1, r):
+            indices[j] = indices[j - 1] + 1
         yield tuple(pool[i] for i in indices)
 
 
@@ -296,6 +296,7 @@ class groupby:
     :param key: the key computation function (default is None)
 
     """
+
     # [k for k, g in groupby('AAAABBBCCDAABBB')] --> A B C D A B
     # [list(g) for k, g in groupby('AAAABBBCCD')] --> AAAA BBB CC D
 
@@ -312,7 +313,7 @@ def __iter__(self):
     def __next__(self):
         self.id = object()
         while self.currkey == self.tgtkey:
-            self.currvalue = next(self.it)    # Exit on StopIteration
+            self.currvalue = next(self.it)  # Exit on StopIteration
             self.currkey = self.keyfunc(self.currvalue)
         self.tgtkey = self.currkey
         return (self.currkey, self._grouper(self.tgtkey, self.id))
@@ -397,13 +398,13 @@ def permutations(iterable, r=None):
     if r > n:
         return
     indices = list(range(n))
-    cycles = list(range(n, n-r, -1))
+    cycles = list(range(n, n - r, -1))
     yield tuple(pool[i] for i in indices[:r])
     while n:
         for i in reversed(range(r)):
             cycles[i] -= 1
             if cycles[i] == 0:
-                indices[i:] = indices[i+1:] + indices[i:i+1]
+                indices[i:] = indices[i + 1 :] + indices[i : i + 1]
                 cycles[i] = n - i
             else:
                 j = cycles[i]
@@ -440,7 +441,7 @@ def product(*args, r=1):
     pools = [tuple(pool) for pool in args] * r
     result = [[]]
     for pool in pools:
-        result = [x+[y] for x in result for y in pool]
+        result = [x + [y] for x in result for y in pool]
     for prod in result:
         yield tuple(prod)
 

adafruit_itertools/adafruit_itertools_extras.py

@@ -74,7 +74,7 @@
   https://github.com/adafruit/circuitpython/releases
 """
 
-#pylint:disable=invalid-name,deprecated-lambda,keyword-arg-before-vararg,relative-beyond-top-level
+# pylint:disable=invalid-name,keyword-arg-before-vararg,relative-beyond-top-level
 
 from . import adafruit_itertools as it
 
@@ -89,9 +89,9 @@ def all_equal(iterable):
 
     """
     g = it.groupby(iterable)
-    next(g)                               # should succeed, value isn't relevant
+    next(g)  # should succeed, value isn't relevant
     try:
-        next(g)                           # should fail: only 1 group
+        next(g)  # should fail: only 1 group
         return False
     except StopIteration:
         return True
@@ -198,10 +198,11 @@ def nth(iterable, n, default=None):
 
     """
     try:
-        return next(it.islice(iterable, n, n+1))
+        return next(it.islice(iterable, n, n + 1))
     except StopIteration:
         return default
 
+
 def padnone(iterable):
     """Returns the sequence elements and then returns None indefinitely.
 

docs/conf.py

@@ -2,43 +2,47 @@
 
 import os
 import sys
-sys.path.insert(0, os.path.abspath('..'))
+
+sys.path.insert(0, os.path.abspath(".."))
 
 # -- General configuration ------------------------------------------------
 
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.intersphinx',
-    'sphinx.ext.napoleon',
-    'sphinx.ext.todo',
+    "sphinx.ext.autodoc",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.napoleon",
+    "sphinx.ext.todo",
 ]
 
-intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),'CircuitPython': ('https://circuitpython.readthedocs.io/en/latest/', None)}
+intersphinx_mapping = {
+    "python": ("https://docs.python.org/3.4", None),
+    "CircuitPython": ("https://circuitpython.readthedocs.io/en/latest/", None),
+}
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
-source_suffix = '.rst'
+source_suffix = ".rst"
 
 # The master toctree document.
-master_doc = 'index'
+master_doc = "index"
 
 # General information about the project.
-project = u'Adafruit itertools Library'
-copyright = u'2019 Dave Astels'
-author = u'Dave Astels'
+project = "Adafruit itertools Library"
+copyright = "2019 Dave Astels"
+author = "Dave Astels"
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-version = u'1.0'
+version = "1.0"
 # The full version, including alpha/beta/rc tags.
-release = u'1.0'
+release = "1.0"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -50,7 +54,7 @@
 # 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', '.env', 'CODE_OF_CONDUCT.md']
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store", ".env", "CODE_OF_CONDUCT.md"]
 
 # The reST default role (used for this markup: `text`) to use for all
 # documents.
@@ -62,7 +66,7 @@
 add_function_parentheses = True
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = "sphinx"
 
 # If true, `todo` and `todoList` produce output, else they produce nothing.
 todo_include_todos = False
@@ -77,68 +81,76 @@
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
+on_rtd = os.environ.get("READTHEDOCS", None) == "True"
 
 if not on_rtd:  # only import and set the theme if we're building docs locally
     try:
         import sphinx_rtd_theme
-        html_theme = 'sphinx_rtd_theme'
-        html_theme_path = [sphinx_rtd_theme.get_html_theme_path(), '.']
+
+        html_theme = "sphinx_rtd_theme"
+        html_theme_path = [sphinx_rtd_theme.get_html_theme_path(), "."]
     except:
-        html_theme = 'default'
-        html_theme_path = ['.']
+        html_theme = "default"
+        html_theme_path = ["."]
 else:
-    html_theme_path = ['.']
+    html_theme_path = ["."]
 
 # 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"]
 
 # The name of an image file (relative to this directory) to use as a favicon of
 # the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
 #
-html_favicon = '_static/favicon.ico'
+html_favicon = "_static/favicon.ico"
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'AdafruitItertoolsLibrarydoc'
+htmlhelp_basename = "AdafruitItertoolsLibrarydoc"
 
 # -- Options for LaTeX output ---------------------------------------------
 
 latex_elements = {
-     # The paper size ('letterpaper' or 'a4paper').
-     #
-     # 'papersize': 'letterpaper',
-
-     # The font size ('10pt', '11pt' or '12pt').
-     #
-     # 'pointsize': '10pt',
-
-     # Additional stuff for the LaTeX preamble.
-     #
-     # 'preamble': '',
-
-     # Latex figure (float) alignment
-     #
-     # 'figure_align': 'htbp',
+    # The paper size ('letterpaper' or 'a4paper').
+    #
+    # 'papersize': 'letterpaper',
+    # The font size ('10pt', '11pt' or '12pt').
+    #
+    # 'pointsize': '10pt',
+    # Additional stuff for the LaTeX preamble.
+    #
+    # 'preamble': '',
+    # Latex figure (float) alignment
+    #
+    # 'figure_align': 'htbp',
 }
 
 # 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, 'AdafruititertoolsLibrary.tex', u'Adafruititertools Library Documentation',
-     author, 'manual'),
+    (
+        master_doc,
+        "AdafruititertoolsLibrary.tex",
+        "Adafruititertools Library Documentation",
+        author,
+        "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, 'Adafruititertoolslibrary', u'Adafruit itertools Library Documentation',
-     [author], 1)
+    (
+        master_doc,
+        "Adafruititertoolslibrary",
+        "Adafruit itertools Library Documentation",
+        [author],
+        1,
+    )
 ]
 
 # -- Options for Texinfo output -------------------------------------------
@@ -147,7 +159,13 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (master_doc, 'AdafruititertoolsLibrary', u'Adafruit itertools Library Documentation',
-     author, 'AdafruititertoolsLibrary', 'One line description of project.',
-     'Miscellaneous'),
+    (
+        master_doc,
+        "AdafruititertoolsLibrary",
+        "Adafruit itertools Library Documentation",
+        author,
+        "AdafruititertoolsLibrary",
+        "One line description of project.",
+        "Miscellaneous",
+    ),
 ]