minor formatting fixups for new lexers

5 files changed, 16 insertions, 14 deletions

diff --git a/pygments/lexers/amdgpu.py b/pygments/lexers/amdgpu.py
index 529a687b..c284d343 100644
--- a/pygments/lexers/amdgpu.py
+++ b/pygments/lexers/amdgpu.py
@@ -15,6 +15,7 @@ import re
 
 __all__ = ['AMDGPULexer']
 
+
 class AMDGPULexer(RegexLexer):
     """
     For AMD GPU assembly.
@@ -24,7 +25,7 @@ class AMDGPULexer(RegexLexer):
     name = 'AMDGPU'
     aliases = ['amdgpu']
     filenames = ['*.isa']
-    
+
     flags = re.IGNORECASE
 
     tokens = {
@@ -45,4 +46,4 @@ class AMDGPULexer(RegexLexer):
             (r'[0-9]+\.[^0-9]+', Number.Float),
             (r'(0[xX][a-z0-9]+)|([0-9]+)', Number.Integer)
         ]
-    }
\ No newline at end of file
+    }
diff --git a/pygments/lexers/cddl.py b/pygments/lexers/cddl.py
index 09bb5839..72b34642 100644
--- a/pygments/lexers/cddl.py
+++ b/pygments/lexers/cddl.py
@@ -119,7 +119,7 @@ class CddlLexer(RegexLexer):
         "root": [
             include("commentsandwhitespace"),
             # tag types
-            (r"#(\d\.{uint})?".format(uint=_re_uint), Keyword.Type), # type or any
+            (r"#(\d\.{uint})?".format(uint=_re_uint), Keyword.Type),  # type or any
             # occurence
             (
                 r"({uint})?(\*)({uint})?".format(uint=_re_uint),
diff --git a/pygments/lexers/futhark.py b/pygments/lexers/futhark.py
index 8892bb79..f580ea72 100644
--- a/pygments/lexers/futhark.py
+++ b/pygments/lexers/futhark.py
@@ -10,9 +10,9 @@
 
 import re
 
-from pygments.lexer import RegexLexer, include, bygroups, default, words
+from pygments.lexer import RegexLexer
 from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
-    Number, Punctuation, Error
+    Number, Punctuation
 from pygments import unistring as uni
 
 __all__ = ['FutharkLexer']
@@ -25,7 +25,7 @@ class FutharkLexer(RegexLexer):
     """
     A Futhark lexer
 
-    .. versionadded:: 2.8.0
+    .. versionadded:: 2.8
     """
     name = 'Futhark'
     aliases = ['futhark']
@@ -70,7 +70,8 @@ class FutharkLexer(RegexLexer):
             (r'[][(),:;`{}]', Punctuation),
 
             #  Numbers
-            (r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*_*[pP][+-]?\d(_*\d)*' + num_postfix, Number.Float),
+            (r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*_*[pP][+-]?\d(_*\d)*' + num_postfix,
+             Number.Float),
             (r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*\.[\da-fA-F](_*[\da-fA-F])*'
              r'(_*[pP][+-]?\d(_*\d)*)?' + num_postfix, Number.Float),
             (r'\d(_*\d)*_*[eE][+-]?\d(_*\d)*' + num_postfix, Number.Float),
diff --git a/pygments/lexers/graphviz.py b/pygments/lexers/graphviz.py
index 55cf2e4c..a6859337 100644
--- a/pygments/lexers/graphviz.py
+++ b/pygments/lexers/graphviz.py
@@ -9,7 +9,8 @@
 """
 
 from pygments.lexer import RegexLexer, bygroups
-from pygments.token import Comment, Keyword, Operator, Name, String, Number, Punctuation, Whitespace
+from pygments.token import Comment, Keyword, Operator, Name, String, Number, \
+    Punctuation, Whitespace
 
 
 __all__ = ['GraphvizLexer']
@@ -37,9 +38,9 @@ class GraphvizLexer(RegexLexer):
                 bygroups(Name.Attribute, Whitespace, Punctuation, Whitespace),
                 'attr_id'),
             (r'\b(n|ne|e|se|s|sw|w|nw|c|_)\b', Name.Builtin),
-            (r'\b\D\w*', Name.Tag), # node
+            (r'\b\D\w*', Name.Tag),  # node
             (r'[-]?((\.[0-9]+)|([0-9]+(\.[0-9]*)?))', Number),
-            (r'"(\\"|[^"])*?"', Name.Tag), # quoted node
+            (r'"(\\"|[^"])*?"', Name.Tag),  # quoted node
             (r'<', Punctuation, 'xml'),
         ],
         'attr_id': [
@@ -54,4 +55,4 @@ class GraphvizLexer(RegexLexer):
             (r'\s+', Whitespace),
             (r'[^<>\s]', Name.Tag),
         ]
-    }
\ No newline at end of file
+    }
diff --git a/pygments/lexers/matlab.py b/pygments/lexers/matlab.py
index 7a72eedc..7e091022 100644
--- a/pygments/lexers/matlab.py
+++ b/pygments/lexers/matlab.py
@@ -20,7 +20,6 @@ from pygments.lexers import _scilab_builtins
 __all__ = ['MatlabLexer', 'MatlabSessionLexer', 'OctaveLexer', 'ScilabLexer']
 
 
-
 class MatlabLexer(RegexLexer):
     """
     For Matlab source code.
@@ -2783,8 +2782,8 @@ class MatlabSessionLexer(Lexer):
                 # Set leading spaces with the length of the prompt to be a generic prompt
                 # This keeps code aligned when prompts are removed, say with some Javascript
                 if line.startswith(' '*line_start):
-                    insertions.append((len(curcode),
-                                    [(0, Generic.Prompt, line[:line_start])]))
+                    insertions.append(
+                        (len(curcode), [(0, Generic.Prompt, line[:line_start])]))
                     curcode += line[line_start:]
                 else:
                     curcode += line