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_max7219/bcddigits.py

@@ -36,6 +36,7 @@
 _SHUTDOWN = const(12)
 _DISPLAYTEST = const(15)
 
+
 class BCDDigits(max7219.MAX7219):
     """
     Basic support for display on a 7-Segment BCD display controlled
@@ -45,18 +46,20 @@ class BCDDigits(max7219.MAX7219):
     :param ~digitalio.DigitalInOut cs: digital in/out to use as chip select signal
     :param int nDigits: number of led 7-segment digits; default 1; max 8
     """
+
     def __init__(self, spi, cs, nDigits=1):
         self._ndigits = nDigits
         super().__init__(self._ndigits, 8, spi, cs)
 
     def init_display(self):
 
-        for cmd, data in ((_SHUTDOWN, 0),
-                          (_DISPLAYTEST, 0),
-                          (_SCANLIMIT, 7),
-                          (_DECODEMODE, (2**self._ndigits)-1),
-                          (_SHUTDOWN, 1),
-                         ):
+        for cmd, data in (
+            (_SHUTDOWN, 0),
+            (_DISPLAYTEST, 0),
+            (_SCANLIMIT, 7),
+            (_DECODEMODE, (2 ** self._ndigits) - 1),
+            (_SHUTDOWN, 1),
+        ):
             self.write_cmd(cmd, data)
 
         self.clear_all()
@@ -71,7 +74,7 @@ def set_digit(self, dpos, value):
         """
         dpos = self._ndigits - dpos - 1
         for i in range(4):
-            #print('digit {} pixel {} value {}'.format(dpos,i+4,v & 0x01))
+            # print('digit {} pixel {} value {}'.format(dpos,i+4,v & 0x01))
             self.pixel(dpos, i, value & 0x01)
             value >>= 1
 
@@ -83,7 +86,7 @@ def set_digits(self, start, values):
         :param list ds: list of integer values ranging from 0->15
         """
         for value in values:
-            #print('set digit {} start {}'.format(d,start))
+            # print('set digit {} start {}'.format(d,start))
             self.set_digit(start, value)
             start += 1
 
@@ -94,9 +97,9 @@ def show_dot(self, dpos, bit_value=None):
         :param int dpos: the digit to set the decimal point zero-based
         :param int value: value > zero lights the decimal point, else unlights the point
         """
-        if dpos < self._ndigits and dpos >= 0:
-            #print('set dot {} = {}'.format((self._ndigits - d -1),col))
-            self.pixel(self._ndigits-dpos-1, 7, bit_value)
+        if 0 <= dpos < self._ndigits:
+            # print('set dot {} = {}'.format((self._ndigits - d -1),col))
+            self.pixel(self._ndigits - dpos - 1, 7, bit_value)
 
     def clear_all(self):
         """
@@ -116,13 +119,13 @@ def show_str(self, start, strg):
         cpos = start
         for char in strg:
             # print('c {}'.format(c))
-            value = 0x0f # assume blank
-            if char >= '0' and char <= '9':
+            value = 0x0F  # assume blank
+            if "0" <= char <= "9":
                 value = int(char)
-            elif char == '-':
-                value = 10 # minus sign
-            elif char == '.':
-                self.show_dot(cpos-1, 1)
+            elif char == "-":
+                value = 10  # minus sign
+            elif char == ".":
+                self.show_dot(cpos - 1, 1)
                 continue
             self.set_digit(cpos, value)
             cpos += 1

adafruit_max7219/matrices.py

@@ -36,23 +36,26 @@
 _SHUTDOWN = const(12)
 _DISPLAYTEST = const(15)
 
+
 class Matrix8x8(max7219.MAX7219):
     """
     Driver for a 8x8 LED matrix based on the MAX7219 chip.
 
     :param object spi: an spi busio or spi bitbangio object
     :param ~digitalio.DigitalInOut cs: digital in/out to use as chip select signal
     """
+
     def __init__(self, spi, cs):
         super().__init__(8, 8, spi, cs)
 
     def init_display(self):
-        for cmd, data in ((_SHUTDOWN, 0),
-                          (_DISPLAYTEST, 0),
-                          (_SCANLIMIT, 7),
-                          (_DECODEMODE, 0),
-                          (_SHUTDOWN, 1),
-                         ):
+        for cmd, data in (
+            (_SHUTDOWN, 0),
+            (_DISPLAYTEST, 0),
+            (_SCANLIMIT, 7),
+            (_DECODEMODE, 0),
+            (_SHUTDOWN, 1),
+        ):
             self.write_cmd(cmd, data)
 
         self.fill(0)

adafruit_max7219/max7219.py

@@ -79,14 +79,17 @@ class MAX7219:
     :param polarity: for SPIDevice polarity (default 0)
     :param phase: for SPIDevice phase (default 0)
     """
-    def __init__(self, width, height, spi, cs, *,
-                 baudrate=8000000, polarity=0, phase=0):
+
+    def __init__(
+        self, width, height, spi, cs, *, baudrate=8000000, polarity=0, phase=0
+    ):
 
         self._chip_select = cs
         self._chip_select.direction = digitalio.Direction.OUTPUT
 
-        self._spi_device = spi_device.SPIDevice(spi, cs, baudrate=baudrate,
-                                                polarity=polarity, phase=phase)
+        self._spi_device = spi_device.SPIDevice(
+            spi, cs, baudrate=baudrate, polarity=polarity, phase=phase
+        )
 
         self._buffer = bytearray((height // 8) * width)
         self.framebuf = framebuf.FrameBuffer1(self._buffer, width, height)
@@ -98,7 +101,6 @@ def __init__(self, width, height, spi, cs, *,
 
     def init_display(self):
         """Must be implemented by derived class (``matrices``, ``bcddigits``)"""
-        pass
 
     def brightness(self, value):
         """
@@ -143,7 +145,7 @@ def scroll(self, delta_x, delta_y):
     def write_cmd(self, cmd, data):
         # pylint: disable=no-member
         """Writes a command to spi device."""
-        #print('cmd {} data {}'.format(cmd,data))
+        # print('cmd {} data {}'.format(cmd,data))
         self._chip_select.value = False
         with self._spi_device as my_spi_device:
             my_spi_device.write(bytearray([cmd, data]))

docs/conf.py

@@ -2,47 +2,55 @@
 
 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.viewcode',
+    "sphinx.ext.autodoc",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.viewcode",
 ]
 
 # Uncomment the below if you use native CircuitPython modules such as
 # digitalio, micropython and busio. List the modules you use. Without it, the
 # autodoc module docs will fail to generate with a warning.
 autodoc_mock_imports = ["framebuf"]
 
-intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),'BusDevice': ('https://circuitpython.readthedocs.io/projects/busdevice/en/latest/', None),'CircuitPython': ('https://circuitpython.readthedocs.io/en/latest/', None)}
+intersphinx_mapping = {
+    "python": ("https://docs.python.org/3.4", None),
+    "BusDevice": (
+        "https://circuitpython.readthedocs.io/projects/busdevice/en/latest/",
+        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 MAX7219 Library'
-copyright = u'2017, Adafruit CiruitPython and Bundle contributors'
-author = u'Michael McWethy'
+project = u"Adafruit MAX7219 Library"
+copyright = u"2017, Adafruit CiruitPython and Bundle contributors"
+author = u"Michael McWethy"
 
 # 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 = u"1.0"
 # The full version, including alpha/beta/rc tags.
-release = u'1.0'
+release = u"1.0"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -54,7 +62,7 @@
 # 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.
@@ -66,7 +74,7 @@
 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
@@ -80,68 +88,76 @@
 # 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 = 'AdafruitMAX7219Librarydoc'
+htmlhelp_basename = "AdafruitMAX7219Librarydoc"
 
 # -- 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, 'AdafruitMAX7219Library.tex', u'Adafruit MAX7219 Library Documentation',
-     author, 'manual'),
+    (
+        master_doc,
+        "AdafruitMAX7219Library.tex",
+        u"Adafruit MAX7219 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, 'adafruitMAX7219library', u'Adafruit MAX7219 Library Documentation',
-     [author], 1)
+    (
+        master_doc,
+        "adafruitMAX7219library",
+        u"Adafruit MAX7219 Library Documentation",
+        [author],
+        1,
+    )
 ]
 
 # -- Options for Texinfo output -------------------------------------------
@@ -150,7 +166,13 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (master_doc, 'AdafruitMAX7219Library', u'Adafruit MAX7219 Library Documentation',
-     author, 'AdafruitMAX7219Library', 'Python driver classes for MAX7219 chip',
-     'Miscellaneous'),
+    (
+        master_doc,
+        "AdafruitMAX7219Library",
+        u"Adafruit MAX7219 Library Documentation",
+        author,
+        "AdafruitMAX7219Library",
+        "Python driver classes for MAX7219 chip",
+        "Miscellaneous",
+    ),
 ]