Clean-up unused imports (#1887)

16 files changed, 9 insertions, 28 deletions

diff --git a/pygments/__init__.py b/pygments/__init__.py
index 4ffb19f6..1098d798 100644
--- a/pygments/__init__.py
+++ b/pygments/__init__.py
@@ -24,7 +24,6 @@
     :copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
     :license: BSD, see LICENSE for details.
 """
-import sys
 from io import StringIO, BytesIO
 
 __version__ = '2.10.0'
diff --git a/pygments/formatters/irc.py b/pygments/formatters/irc.py
index ab76fb83..22928f98 100644
--- a/pygments/formatters/irc.py
+++ b/pygments/formatters/irc.py
@@ -8,8 +8,6 @@
     :license: BSD, see LICENSE for details.
 """
 
-import sys
-
 from pygments.formatter import Formatter
 from pygments.token import Keyword, Name, Comment, String, Error, \
     Number, Operator, Generic, Token, Whitespace
diff --git a/pygments/formatters/terminal.py b/pygments/formatters/terminal.py
index cd4e2ce3..a27594d0 100644
--- a/pygments/formatters/terminal.py
+++ b/pygments/formatters/terminal.py
@@ -8,8 +8,6 @@
     :license: BSD, see LICENSE for details.
 """
 
-import sys
-
 from pygments.formatter import Formatter
 from pygments.token import Keyword, Name, Comment, String, Error, \
     Number, Operator, Generic, Token, Whitespace
diff --git a/pygments/formatters/terminal256.py b/pygments/formatters/terminal256.py
index 7060f5ba..0b6bb161 100644
--- a/pygments/formatters/terminal256.py
+++ b/pygments/formatters/terminal256.py
@@ -23,8 +23,6 @@
 #    black-on-while, so colors like "white background" need to be converted
 #    to "white background, black foreground", etc...
 
-import sys
-
 from pygments.formatter import Formatter
 from pygments.console import codes
 from pygments.style import ansicolors
diff --git a/pygments/lexers/asm.py b/pygments/lexers/asm.py
index f83abdef..1e0fba3b 100644
--- a/pygments/lexers/asm.py
+++ b/pygments/lexers/asm.py
@@ -15,7 +15,7 @@ from pygments.lexer import RegexLexer, include, bygroups, using, words, \
 from pygments.lexers.c_cpp import CppLexer, CLexer
 from pygments.lexers.d import DLexer
 from pygments.token import Text, Name, Number, String, Comment, Punctuation, \
-    Other, Keyword, Operator, Literal
+    Other, Keyword, Operator
 
 __all__ = ['GasLexer', 'ObjdumpLexer', 'DObjdumpLexer', 'CppObjdumpLexer',
            'CObjdumpLexer', 'HsailLexer', 'LlvmLexer', 'LlvmMirBodyLexer',
diff --git a/pygments/lexers/crystal.py b/pygments/lexers/crystal.py
index 60fc8d27..308b81ce 100644
--- a/pygments/lexers/crystal.py
+++ b/pygments/lexers/crystal.py
@@ -11,7 +11,7 @@
 import re
 
 from pygments.lexer import ExtendedRegexLexer, include, \
-    bygroups, default, LexerContext, words
+    bygroups, default, words
 from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
     Number, Punctuation, Error
 
diff --git a/pygments/lexers/data.py b/pygments/lexers/data.py
index 0fbae82e..1eadb202 100644
--- a/pygments/lexers/data.py
+++ b/pygments/lexers/data.py
@@ -8,10 +8,8 @@
     :license: BSD, see LICENSE for details.
 """
 
-import re
-
-from pygments.lexer import Lexer, RegexLexer, ExtendedRegexLexer, LexerContext, \
-    include, bygroups, inherit
+from pygments.lexer import Lexer, ExtendedRegexLexer, LexerContext, \
+    include, bygroups
 from pygments.token import Text, Comment, Keyword, Name, String, Number, \
     Punctuation, Literal, Error
 
diff --git a/pygments/lexers/esoteric.py b/pygments/lexers/esoteric.py
index 416bab0f..d0cacb56 100644
--- a/pygments/lexers/esoteric.py
+++ b/pygments/lexers/esoteric.py
@@ -12,8 +12,6 @@ from pygments.lexer import RegexLexer, include, words
 from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
     Number, Punctuation, Error
 
-import re
-
 __all__ = ['BrainfuckLexer', 'BefungeLexer', 'RedcodeLexer', 'CAmkESLexer',
            'CapDLLexer', 'AheuiLexer']
 
diff --git a/pygments/lexers/kuin.py b/pygments/lexers/kuin.py
index aca63bfa..676efef1 100644
--- a/pygments/lexers/kuin.py
+++ b/pygments/lexers/kuin.py
@@ -8,7 +8,7 @@
     :license: BSD, see LICENSE for details.
 """
 
-from pygments.lexer import RegexLexer, include, using, inherit, this, bygroups, words
+from pygments.lexer import RegexLexer, include, using, this, bygroups, words
 from pygments.token import Text, Comment, Operator, Keyword, Name, String, Number, Punctuation
 
 __all__ = ['KuinLexer']
diff --git a/pygments/lexers/markup.py b/pygments/lexers/markup.py
index 3317d1b9..24fe9f46 100644
--- a/pygments/lexers/markup.py
+++ b/pygments/lexers/markup.py
@@ -10,7 +10,7 @@
 
 import re
 
-from pygments.lexers.html import HtmlLexer, XmlLexer
+from pygments.lexers.html import XmlLexer
 from pygments.lexers.javascript import JavascriptLexer
 from pygments.lexers.css import CssLexer
 
diff --git a/pygments/lexers/r.py b/pygments/lexers/r.py
index 643fb3a0..44168a7a 100644
--- a/pygments/lexers/r.py
+++ b/pygments/lexers/r.py
@@ -10,7 +10,7 @@
 
 import re
 
-from pygments.lexer import Lexer, RegexLexer, include, do_insertions, bygroups
+from pygments.lexer import Lexer, RegexLexer, include, do_insertions
 from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
     Number, Punctuation, Generic
 
diff --git a/pygments/lexers/thingsdb.py b/pygments/lexers/thingsdb.py
index 8a01dea0..3b94da57 100644
--- a/pygments/lexers/thingsdb.py
+++ b/pygments/lexers/thingsdb.py
@@ -8,7 +8,6 @@
     :license: BSD, see LICENSE for details.
 """
 
-import re
 from pygments.lexer import RegexLexer, include, bygroups
 from pygments.token import Comment, Keyword, Name, Number, String, Text, \
     Operator, Punctuation, Whitespace
diff --git a/pygments/lexers/trafficscript.py b/pygments/lexers/trafficscript.py
index e796a275..67ecd243 100644
--- a/pygments/lexers/trafficscript.py
+++ b/pygments/lexers/trafficscript.py
@@ -8,8 +8,6 @@
     :license: BSD, see LICENSE for details.
 """
 
-import re
-
 from pygments.lexer import RegexLexer
 from pygments.token import String, Number, Name, Keyword, Operator, Text, Comment
 
diff --git a/pygments/lexers/webassembly.py b/pygments/lexers/webassembly.py
index 155d2c1d..d8d84b5c 100644
--- a/pygments/lexers/webassembly.py
+++ b/pygments/lexers/webassembly.py
@@ -13,7 +13,7 @@
 """
 
 from pygments.lexer import RegexLexer, words, bygroups, default
-from pygments.token import Text, Comment, Operator, Keyword, String, Number, Punctuation, Literal, Error, Name
+from pygments.token import Text, Comment, Operator, Keyword, String, Number, Punctuation, Name
 
 __all__ = ['WatLexer']
 
diff --git a/pygments/lexers/x10.py b/pygments/lexers/x10.py
index 5c01fe5e..a5aff36d 100644
--- a/pygments/lexers/x10.py
+++ b/pygments/lexers/x10.py
@@ -8,11 +8,8 @@
     :license: BSD, see LICENSE for details.
 """
 
-import re
-
 from pygments.lexer import RegexLexer
-from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
-    Number, Punctuation, Error
+from pygments.token import Text, Comment, Keyword, String
 
 __all__ = ['X10Lexer']
 
diff --git a/pygments/unistring.py b/pygments/unistring.py
index 4db9c7ce..2872985c 100644
--- a/pygments/unistring.py
+++ b/pygments/unistring.py
@@ -11,8 +11,6 @@
     :license: BSD, see LICENSE for details.
 """
 
-import sys
-
 Cc = '\x00-\x1f\x7f-\x9f'
 
 Cf = '\xad\u0600-\u0605\u061c\u06dd\u070f\u08e2\u180e\u200b-\u200f\u202a-\u202e\u2060-\u2064\u2066-\u206f\ufeff\ufff9-\ufffb\U000110bd\U000110cd\U0001bca0-\U0001bca3\U0001d173-\U0001d17a\U000e0001\U000e0020-\U000e007f'