Lint cleanup

cjdrake · Mar 1, 2015 · e0f87c6 · e0f87c6
1 parent 95c9328
commit e0f87c6
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Showing 14 changed files with 136 additions and 75 deletions.
diff --git a/.pylintrc b/.pylintrc
@@ -39,13 +39,14 @@ load-plugins=
 # no Warning level messages displayed, use"--disable=all --enable=classes
 # --disable=W"
 # C0302 = Too many lines in module
+# W0108 = Lambda may not be necessary
 # W0142 = Used * or ** magic
 # W0212 = Access to a protected member of a client class
 # W0602 = Using global for ... but no assignment is done
 # R0903 = Too few public methods
 # R0904 = Too many public methods
 # R0923 = Interface not implemented
-disable=similarities,C0302,W0142,W0212,W0223,W0602,R0903,R0904,R0923
+disable=similarities,C0302,W0108,W0142,W0212,W0223,W0602,R0903,R0904,R0923
 
 [REPORTS]
 
@@ -142,16 +143,15 @@ inlinevar-rgx=[A-Za-z_][A-Za-z0-9_]*$
 # Good variable names which should always be accepted, separated by a comma
 # _ : generic
 # i, j, k : iterator index
-# N : generic integer
+# n : int
+# d : dict
 # it : generic iterator
-# ab, cd : short-hand for positional cube variables
-# x, y, x0, x1, xi, xs, ys: operator 'x' arguments
-# y: generic function output variable
+# x, x0, x1, xi, xs: function inputs
+# y, ys: function outputs
 # p, q : conventional Implies variable names p => q
 # s, d1, d0 : conventional ITE (if-then-else) variable names s ? d1 : d0
 # lo, hi : BDD low/high edges
-# v : Variable instance
-# vs : [v]
+# v, vs : Variable instance(s)
 # bf : Boolean function
 # farray : Function array
 # ex : Expression
@@ -161,10 +161,11 @@ inlinevar-rgx=[A-Za-z_][A-Za-z0-9_]*$
 # tt : TruthTable instances
 # sl : slice instance
 # op : Boolean operator
+# Zero, One : Constant names
 # Not, Or, And, Xor, Xnor, Equal, Unequal, Implies, ITE : Expression factory functions
 # Nor, Nand, OneHot0, OneHot, Majority, AchillesHeel, Mux : Expression higher-order factory functions
 # ForAll, Exists : Expression quantifiers
-good-names=_,i,j,k,N,it,ab,cd,x,x0,x1,xi,xs,y,ys,p,q,s,d1,d0,lo,hi,v,vs,bf,farray,ex,f,g,h,cf,fs,tt,sl,op,Not,Or,And,Xor,Xnor,Equal,Unequal,Implies,ITE,Nor,Nand,OneHot0,OneHot,Majority,AchillesHeel,Mux,ForAll,Exists
+good-names=_,i,j,k,n,d,it,x,x0,x1,xi,xs,y,ys,p,q,s,d1,d0,lo,hi,v,vs,bf,farray,ex,f,g,h,cf,fs,tt,sl,op,Zero,One,Not,Or,And,Xor,Xnor,Equal,Unequal,Implies,ITE,Nor,Nand,OneHot0,OneHot,Majority,AchillesHeel,Mux,ForAll,Exists
 
 # Bad variable names which should always be refused, separated by a comma
 bad-names=foo,bar,fiz,buz

diff --git a/pyeda/boolalg/bfarray.py b/pyeda/boolalg/bfarray.py
@@ -1172,29 +1172,29 @@ def _filtdim(items, shape, dim, nsl):
     # Size of each group
     size = len(items) // num
     # Size of the dimension
-    N = normshape[dim]
+    n = normshape[dim]
     if nsl_type is int:
         for i in range(num):
-            if i % N == nsl:
+            if i % n == nsl:
                 newitems += items[size*i:size*(i+1)]
         # Collapse dimension
         newshape = shape[:dim] + shape[dim+1:]
     elif nsl_type is slice:
         for i in range(num):
-            if nsl.start <= (i % N) < nsl.stop:
+            if nsl.start <= (i % n) < nsl.stop:
                 newitems += items[size*i:size*(i+1)]
         # Reshape dimension
         offset = shape[dim][0]
         redim = (offset + nsl.start, offset + nsl.stop)
         newshape = shape[:dim] + (redim, ) + shape[dim+1:]
     # farray
     else:
-        if nsl.size < clog2(N):
+        if nsl.size < clog2(n):
             fstr = "expected dim {} select to have >= {} bits, got {}"
-            raise ValueError(fstr.format(dim, clog2(N), nsl.size))
-        groups = [list() for _ in range(N)]
+            raise ValueError(fstr.format(dim, clog2(n), nsl.size))
+        groups = [list() for _ in range(n)]
         for i in range(num):
-            groups[i % N] += items[size*i:size*(i+1)]
+            groups[i % n] += items[size*i:size*(i+1)]
         for muxins in zip(*groups):
             it = boolfunc.iter_terms(nsl._items)
             xs = [reduce(operator.and_, (muxin, ) + next(it))

diff --git a/pyeda/boolalg/boolfunc.py b/pyeda/boolalg/boolfunc.py
@@ -158,10 +158,10 @@ def num2point(num, vs):
     if type(num) is not int:
         fstr = "expected num to be an int, got {0.__name__}"
         raise TypeError(fstr.format(type(num)))
-    N = len(vs)
-    if not 0 <= num < 2**N:
+    n = len(vs)
+    if not 0 <= num < 2**n:
         fstr = "expected num to be in range [0, {}), got {}"
-        raise ValueError(fstr.format(2**N, num))
+        raise ValueError(fstr.format(2**n, num))
 
     return {v: bit_on(num, i) for i, v in enumerate(vs)}
 
@@ -218,10 +218,10 @@ def num2term(num, fs, conj=False):
     if type(num) is not int:
         fstr = "expected num to be an int, got {0.__name__}"
         raise TypeError(fstr.format(type(num)))
-    N = len(fs)
-    if not 0 <= num < 2**N:
+    n = len(fs)
+    if not 0 <= num < 2**n:
         fstr = "expected num to be in range [0, {}), got {}"
-        raise ValueError(fstr.format(2**N, num))
+        raise ValueError(fstr.format(2**n, num))
 
     if conj:
         return tuple(~f if bit_on(num, i) else f for i, f in enumerate(fs))

diff --git a/pyeda/boolalg/expr.py b/pyeda/boolalg/expr.py
@@ -90,11 +90,8 @@
 """
 
 
-# Disable 'unnecessary-lambda'
-# pylint: disable=W0108
-
-# Disable 'no-member' error
-# pylint: disable=E1101
+# Disable 'no-member' error, b/c pylint can't look into C extensions
+# foo bar pylint: disable=E1101
 
 
 import itertools
@@ -109,6 +106,7 @@
 import os
 if os.getenv('READTHEDOCS') == 'True':
     from unittest.mock import MagicMock
+    # pylint: disable=C0103
     exprnode = MagicMock()
 else:
     from pyeda.boolalg import exprnode
@@ -621,10 +619,6 @@ def __xor__(self, other):
         other_node = self.box(other).node
         return _expr(exprnode.xor(self.node, other_node))
 
-    def eq(self, other):
-        other_node = self.box(other).node
-        return _expr(exprnode.eq(self.node, other_node))
-
     def __rshift__(self, other):
         other_node = self.box(other).node
         return _expr(exprnode.impl(self.node, other_node))
@@ -826,7 +820,6 @@ def complete_sum(self):
             return _expr(node)
     ### End C API ###
 
-    ### FIXME: Write C hooks for these
     def expand(self, vs=None, conj=False):
         """Return the Shannon expansion with respect to a list of variables."""
         vs = self._expect_vars(vs)
@@ -948,18 +941,21 @@ class Atom(Expression):
 
 class Constant(Atom):
     """Constant Expression"""
+    VALUE = NotImplemented
 
 
 class _Zero(Constant):
     """Constant Zero"""
+    VALUE = False
+
     def __bool__(self):
-        return False
+        return self.VALUE
 
     def __int__(self):
-        return 0
+        return int(self.VALUE)
 
     def __str__(self):
-        return '0'
+        return str(self.__int__())
 
     def is_zero(self):
         return True
@@ -976,14 +972,16 @@ def _encode_dnf(self):
 
 class _One(Constant):
     """Constant One"""
+    VALUE = True
+
     def __bool__(self):
-        return True
+        return self.VALUE
 
     def __int__(self):
-        return 1
+        return int(self.VALUE)
 
     def __str__(self):
-        return '1'
+        return str(self.__int__())
 
     def is_one(self):
         return True

diff --git a/pyeda/boolalg/minimization.py b/pyeda/boolalg/minimization.py
@@ -8,6 +8,11 @@
 * :func:`espresso_tts`
 """
 
+
+# Disable the 'no-name-in-module' error, b/c pylint can't look into C extensions
+# pylint: disable=E0611
+
+
 from pyeda.boolalg import boolfunc
 from pyeda.boolalg.expr import exprvar, Expression, Or, And
 from pyeda.boolalg.table import TruthTable, PC_ZERO, PC_ONE, PC_DC

diff --git a/pyeda/boolalg/table.py b/pyeda/boolalg/table.py
@@ -265,6 +265,7 @@ def __or__(self, other):
         def items():
             """Iterate through OR'ed items."""
             for point in boolfunc.iter_points(inputs):
+                # pylint: disable=C0103
                 ab = self.restrict(point).pcdata[0]
                 cd = other.restrict(point).pcdata[0]
                 # a | c, b & d
@@ -278,6 +279,7 @@ def __and__(self, other):
         def items():
             """Iterate through AND'ed items."""
             for point in boolfunc.iter_points(inputs):
+                # pylint: disable=C0103
                 ab = self.restrict(point).pcdata[0]
                 cd = other.restrict(point).pcdata[0]
                 # a & c, b | d
@@ -290,8 +292,8 @@ def __xor__(self, other):
         inputs = sorted(self.support | other.support)
         def items():
             """Iterate through XOR'ed items."""
-            # pylint: disable=C0103
             for point in boolfunc.iter_points(inputs):
+                # pylint: disable=C0103
                 ab = self.restrict(point).pcdata[0]
                 cd = other.restrict(point).pcdata[0]
                 # a & d | b & c, a & c | b & d

diff --git a/pyeda/inter.py b/pyeda/inter.py
@@ -6,9 +6,11 @@
     >>> from pyeda.inter import *
 """
 
-# Disable "unused import"
+
+# Disable "unused-import", since that's basically all this module is for.
 # pylint: disable=W0611
 
+
 from pyeda.util import clog2, parity
 
 from pyeda.boolalg.boolfunc import (

diff --git a/pyeda/logic/addition.py b/pyeda/logic/addition.py
@@ -7,9 +7,11 @@
     brent_kung_add
 """
 
-# Disable "invalid variable name"
+
+# Disable 'invalid-name', b/c 'logic' package uses unconventional names
 # pylint: disable=C0103
 
+
 from math import floor, log
 
 from pyeda.boolalg.bfarray import farray

diff --git a/pyeda/logic/aes.py b/pyeda/logic/aes.py
@@ -2,48 +2,82 @@
 Logic function for AES cipher
 """
 
+
+# Disable 'invalid-name', b/c 'logic' package uses unconventional names
 # pylint: disable=C0103
-# pylint: disable=C0301
+
 
 from pyeda.boolalg.bfarray import exprzeros, uint2exprs, fcat
 
 
 _SBOX = [
-    0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
-    0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
-    0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
-    0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
-    0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
-    0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
-    0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
-    0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
-    0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
-    0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
-    0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
-    0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
-    0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
-    0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
-    0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
-    0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16,
+    0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5,
+    0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
+    0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
+    0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
+    0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc,
+    0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+    0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a,
+    0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
+    0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
+    0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
+    0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b,
+    0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+    0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85,
+    0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
+    0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
+    0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
+    0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17,
+    0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+    0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88,
+    0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
+    0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
+    0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
+    0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9,
+    0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+    0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6,
+    0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
+    0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
+    0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
+    0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94,
+    0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+    0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68,
+    0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16,
 ]
 
 _ISBOX = [
-    0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
-    0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
-    0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
-    0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
-    0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
-    0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
-    0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
-    0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
-    0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
-    0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
-    0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
-    0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
-    0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
-    0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
-    0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
-    0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d,
+    0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38,
+    0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
+    0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
+    0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
+    0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d,
+    0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+    0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2,
+    0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
+    0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
+    0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
+    0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda,
+    0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+    0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a,
+    0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
+    0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
+    0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
+    0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea,
+    0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+    0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85,
+    0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
+    0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
+    0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
+    0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20,
+    0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+    0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31,
+    0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
+    0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
+    0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
+    0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0,
+    0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+    0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26,
+    0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d,
 ]
 
 _RCON = [

diff --git a/pyeda/logic/graycode.py b/pyeda/logic/graycode.py
@@ -6,9 +6,11 @@
     gray2bin
 """
 
-# Disable "invalid variable name"
+
+# Disable 'invalid-name', b/c 'logic' package uses unconventional names
 # pylint: disable=C0103
 
+
 from pyeda.boolalg.bfarray import fcat, farray