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runtime(python): Highlight built-in constants in Python

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Also add syntax tests for those newly constants.

closes: #17788
closes: #18922

Signed-off-by: Rob B <github@0x7e.net>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Rob B
2026-01-26 18:52:04 +00:00
committed by Christian Brabandt
parent ca6726285c
commit 632fd8bb96
10 changed files with 146 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
runtime/doc/syntax.txt
+7 -4
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@@ -1,4 +1,4 @@
*syntax.txt* For Vim version 9.1. Last change: 2026 Jan 25
*syntax.txt* For Vim version 9.1. Last change: 2026 Jan 26
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -3223,7 +3223,7 @@ Pascal. Use this if you don't use assembly and Pascal: >
PYTHON *python.vim* *ft-python-syntax*
There are six options to control Python syntax highlighting.
There are seven options to control Python syntax highlighting.
For highlighted numbers: >
:let python_no_number_highlight = 1
@@ -3243,10 +3243,13 @@ The first option implies the second one.
For highlighted trailing whitespace and mix of spaces and tabs: >
:let python_space_error_highlight = 1
For highlighted built-in constants distinguished from other keywords:
:let python_constant_highlight = 1
If you want all possible Python highlighting: >
:let python_highlight_all = 1
This has the same effect as setting python_space_error_highlight and
unsetting all the other ones.
This has the same effect as setting python_space_error_highlight,
python_constant_highlight and unsetting all the other ones.
If you use Python 2 or straddling code (Python 2 and 3 compatible),
you can enforce the use of an older syntax file with support for
runtime/syntax/python.vim
+15 -3
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@@ -4,6 +4,7 @@
" Last Change: 2025 Sep 08
" 2025 Sep 25 by Vim Project: fix wrong type highlighting #18394
" 2025 Dec 03 by Vim Project: highlight t-strings #18679
" 2026 Jan 26 by Vim Project: highlight constants #18922
" Credits: Neil Schemenauer <nas@python.ca>
" Dmitry Vasiliev
" Rob B
@@ -34,6 +35,7 @@
" let python_no_exception_highlight = 1
" let python_no_number_highlight = 1
" let python_space_error_highlight = 1
" let python_constant_highlight = 1
"
" All the options above can be switched on together.
"
@@ -85,6 +87,7 @@ if exists("python_highlight_all")
unlet python_no_number_highlight
endif
let python_space_error_highlight = 1
let python_constant_highlight = 1
endif
" Keep Python keywords in alphabetical order inside groups for easy
@@ -97,7 +100,8 @@ endif
"
" python3 -c 'import keyword, pprint; pprint.pprint(keyword.kwlist + keyword.softkwlist, compact=True)'
"
syn keyword pythonStatement False None True
syn keyword pythonBoolean False True
syn keyword pythonConstant None
syn keyword pythonStatement as assert break continue del global
syn keyword pythonStatement lambda nonlocal pass return with yield
syn keyword pythonStatement class nextgroup=pythonClass skipwhite
@@ -296,8 +300,8 @@ endif
if !exists("python_no_builtin_highlight")
" built-in constants
" 'False', 'True', and 'None' are also reserved words in Python 3
syn keyword pythonBuiltin False True None
syn keyword pythonBuiltin NotImplemented Ellipsis __debug__
syn keyword pythonBoolean False True
syn keyword pythonConstant None NotImplemented Ellipsis __debug__
" constants added by the `site` module
syn keyword pythonBuiltin quit exit copyright credits license
" built-in functions
@@ -391,6 +395,8 @@ endif
syn sync match pythonSync grouphere NONE "^\%(def\|class\|async\s\+def\)\s\+\h\w*\s*[(:]"
" The default highlight links. Can be overridden later.
hi def link pythonBoolean Statement
hi def link pythonConstant Statement
hi def link pythonStatement Statement
hi def link pythonConditional Conditional
hi def link pythonRepeat Repeat
@@ -421,6 +427,8 @@ if !exists("python_no_number_highlight")
hi def link pythonNumber Number
endif
if !exists("python_no_builtin_highlight")
hi! def link pythonBoolean Function
hi! def link pythonConstant Function
hi def link pythonBuiltin Function
hi def link pythonEllipsis pythonBuiltin
endif
@@ -434,6 +442,10 @@ if !exists("python_no_doctest_highlight")
hi def link pythonDoctest Special
hi def link pythonDoctestValue Define
endif
if exists("python_constant_highlight")
hi! def link pythonBoolean Boolean
hi! def link pythonConstant Constant
endif
let b:current_syntax = "python"
runtime/syntax/testdir/dumps/python_constants_builtin_default_00.dump
+20
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@@ -0,0 +1,20 @@
>#+0#0000e05#ffffff0| |B|u|i|l|t|-|i|n| |C|o|n|s|t|a|n|t|s| +0#0000000&@54
|#+0#0000e05&| |h|t@1|p|s|:|/@1|d|o|c|s|.|p|y|t|h|o|n|.|o|r|g|/|3|/|l|i|b|r|a|r|y|/|c|o|n|s|t|a|n|t|s|.|h|t|m|l| +0#0000000&@24
@75
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |u|n|l|e|t| |g|:|p|y|t|h|o|n|_|c|o|n|s|t|a|n|t|_|h|i|g|h|l|i|g|h|t| +0#0000000&@24
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |u|n|l|e|t| |g|:|p|y|t|h|o|n|_|n|o|_|b|u|i|l|t|i|n|_|h|i|g|h|l|i|g|h|t| +0#0000000&@22
|t|e|s|t| |=| |F+0#00e0e07&|a|l|s|e| +0#0000000&@62
|t|e|s|t| |=| |T+0#00e0e07&|r|u|e| +0#0000000&@63
|t|e|s|t| |=| |N+0#00e0e07&|o|n|e| +0#0000000&@63
|t|e|s|t| |=| |N+0#00e0e07&|o|t|I|m|p|l|e|m|e|n|t|e|d| +0#0000000&@53
|t|e|s|t| |=| |E+0#00e0e07&|l@1|i|p|s|i|s| +0#0000000&@59
|t|e|s|t| |=| |_+0#00e0e07&@1|d|e|b|u|g|_@1| +0#0000000&@58
|~+0#4040ff13&| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
| +0#0000000&@56|1|,|1| @10|A|l@1|
runtime/syntax/testdir/dumps/python_constants_builtin_highlight_00.dump
+20
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@@ -0,0 +1,20 @@
>#+0#0000e05#ffffff0| |B|u|i|l|t|-|i|n| |C|o|n|s|t|a|n|t|s| +0#0000000&@54
|#+0#0000e05&| |h|t@1|p|s|:|/@1|d|o|c|s|.|p|y|t|h|o|n|.|o|r|g|/|3|/|l|i|b|r|a|r|y|/|c|o|n|s|t|a|n|t|s|.|h|t|m|l| +0#0000000&@24
@75
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |l|e|t| |g|:|p|y|t|h|o|n|_|c|o|n|s|t|a|n|t|_|h|i|g|h|l|i|g|h|t| |=| |1| +0#0000000&@22
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |u|n|l|e|t| |g|:|p|y|t|h|o|n|_|n|o|_|b|u|i|l|t|i|n|_|h|i|g|h|l|i|g|h|t| +0#0000000&@22
|t|e|s|t| |=| |F+0#e000002&|a|l|s|e| +0#0000000&@62
|t|e|s|t| |=| |T+0#e000002&|r|u|e| +0#0000000&@63
|t|e|s|t| |=| |N+0#e000002&|o|n|e| +0#0000000&@63
|t|e|s|t| |=| |N+0#e000002&|o|t|I|m|p|l|e|m|e|n|t|e|d| +0#0000000&@53
|t|e|s|t| |=| |E+0#e000002&|l@1|i|p|s|i|s| +0#0000000&@59
|t|e|s|t| |=| |_+0#e000002&@1|d|e|b|u|g|_@1| +0#0000000&@58
|~+0#4040ff13&| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
| +0#0000000&@56|1|,|1| @10|A|l@1|
runtime/syntax/testdir/dumps/python_constants_keyword_default_00.dump
+20
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@@ -0,0 +1,20 @@
>#+0#0000e05#ffffff0| |B|u|i|l|t|-|i|n| |C|o|n|s|t|a|n|t|s| +0#0000000&@54
|#+0#0000e05&| |h|t@1|p|s|:|/@1|d|o|c|s|.|p|y|t|h|o|n|.|o|r|g|/|3|/|l|i|b|r|a|r|y|/|c|o|n|s|t|a|n|t|s|.|h|t|m|l| +0#0000000&@24
@75
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |u|n|l|e|t| |g|:|p|y|t|h|o|n|_|c|o|n|s|t|a|n|t|_|h|i|g|h|l|i|g|h|t| +0#0000000&@24
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |l|e|t| |g|:|p|y|t|h|o|n|_|n|o|_|b|u|i|l|t|i|n|_|h|i|g|h|l|i|g|h|t| |=| |1| +0#0000000&@20
|t|e|s|t| |=| |F+0#af5f00255&|a|l|s|e| +0#0000000&@62
|t|e|s|t| |=| |T+0#af5f00255&|r|u|e| +0#0000000&@63
|t|e|s|t| |=| |N+0#af5f00255&|o|n|e| +0#0000000&@63
|t|e|s|t| |=| |N|o|t|I|m|p|l|e|m|e|n|t|e|d| @53
|t|e|s|t| |=| |E|l@1|i|p|s|i|s| @59
|t|e|s|t| |=| |_@1|d|e|b|u|g|_@1| @58
|~+0#4040ff13&| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
| +0#0000000&@56|1|,|1| @10|A|l@1|
runtime/syntax/testdir/dumps/python_constants_keyword_highlight_00.dump
+20
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@@ -0,0 +1,20 @@
>#+0#0000e05#ffffff0| |B|u|i|l|t|-|i|n| |C|o|n|s|t|a|n|t|s| +0#0000000&@54
|#+0#0000e05&| |h|t@1|p|s|:|/@1|d|o|c|s|.|p|y|t|h|o|n|.|o|r|g|/|3|/|l|i|b|r|a|r|y|/|c|o|n|s|t|a|n|t|s|.|h|t|m|l| +0#0000000&@24
@75
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |l|e|t| |g|:|p|y|t|h|o|n|_|c|o|n|s|t|a|n|t|_|h|i|g|h|l|i|g|h|t| |=| |1| +0#0000000&@22
|#+0#0000e05&| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |l|e|t| |g|:|p|y|t|h|o|n|_|n|o|_|b|u|i|l|t|i|n|_|h|i|g|h|l|i|g|h|t| |=| |1| +0#0000000&@20
|t|e|s|t| |=| |F+0#e000002&|a|l|s|e| +0#0000000&@62
|t|e|s|t| |=| |T+0#e000002&|r|u|e| +0#0000000&@63
|t|e|s|t| |=| |N+0#e000002&|o|n|e| +0#0000000&@63
|t|e|s|t| |=| |N|o|t|I|m|p|l|e|m|e|n|t|e|d| @53
|t|e|s|t| |=| |E|l@1|i|p|s|i|s| @59
|t|e|s|t| |=| |_@1|d|e|b|u|g|_@1| @58
|~+0#4040ff13&| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
|~| @73
| +0#0000000&@56|1|,|1| @10|A|l@1|
runtime/syntax/testdir/input/python_constants_builtin_default.py
+11
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@@ -0,0 +1,11 @@
# Built-in Constants
# https://docs.python.org/3/library/constants.html
# VIM_TEST_SETUP unlet g:python_constant_highlight
# VIM_TEST_SETUP unlet g:python_no_builtin_highlight
test = False
test = True
test = None
test = NotImplemented
test = Ellipsis
test = __debug__
runtime/syntax/testdir/input/python_constants_builtin_highlight.py
+11
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@@ -0,0 +1,11 @@
# Built-in Constants
# https://docs.python.org/3/library/constants.html
# VIM_TEST_SETUP let g:python_constant_highlight = 1
# VIM_TEST_SETUP unlet g:python_no_builtin_highlight
test = False
test = True
test = None
test = NotImplemented
test = Ellipsis
test = __debug__
runtime/syntax/testdir/input/python_constants_keyword_default.py
+11
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@@ -0,0 +1,11 @@
# Built-in Constants
# https://docs.python.org/3/library/constants.html
# VIM_TEST_SETUP unlet g:python_constant_highlight
# VIM_TEST_SETUP let g:python_no_builtin_highlight = 1
test = False
test = True
test = None
test = NotImplemented
test = Ellipsis
test = __debug__
runtime/syntax/testdir/input/python_constants_keyword_highlight.py
+11
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@@ -0,0 +1,11 @@
# Built-in Constants
# https://docs.python.org/3/library/constants.html
# VIM_TEST_SETUP let g:python_constant_highlight = 1
# VIM_TEST_SETUP let g:python_no_builtin_highlight = 1
test = False
test = True
test = None
test = NotImplemented
test = Ellipsis
test = __debug__