--- /dev/null
+" Author: Michael Thiesen <micthiesen@gmail.com>
+" Description: pycodestyle linting for python files
+
+call ale#Set('python_pycodestyle_executable', 'pycodestyle')
+call ale#Set('python_pycodestyle_options', '')
+call ale#Set('python_pycodestyle_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('python_pycodestyle_auto_pipenv', 0)
+call ale#Set('python_pycodestyle_auto_poetry', 0)
+call ale#Set('python_pycodestyle_auto_uv', 0)
+
+function! ale_linters#python#pycodestyle#GetExecutable(buffer) abort
+ if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_pycodestyle_auto_pipenv'))
+ \ && ale#python#PipenvPresent(a:buffer)
+ return 'pipenv'
+ endif
+
+ if (ale#Var(a:buffer, 'python_auto_poetry') || ale#Var(a:buffer, 'python_pycodestyle_auto_poetry'))
+ \ && ale#python#PoetryPresent(a:buffer)
+ return 'poetry'
+ endif
+
+ if (ale#Var(a:buffer, 'python_auto_uv') || ale#Var(a:buffer, 'python_pycodestyle_auto_uv'))
+ \ && ale#python#UvPresent(a:buffer)
+ return 'uv'
+ endif
+
+ return ale#python#FindExecutable(a:buffer, 'python_pycodestyle', ['pycodestyle'])
+endfunction
+
+function! ale_linters#python#pycodestyle#GetCommand(buffer) abort
+ let l:executable = ale_linters#python#pycodestyle#GetExecutable(a:buffer)
+
+ let l:exec_args = l:executable =~? '\(pipenv\|poetry\|uv\)$'
+ \ ? ' run pycodestyle'
+ \ : ''
+
+ return ale#Escape(l:executable) . l:exec_args
+ \ . ' '
+ \ . ale#Var(a:buffer, 'python_pycodestyle_options')
+ \ . ' -'
+endfunction
+
+function! ale_linters#python#pycodestyle#Handle(buffer, lines) abort
+ let l:pattern = '\v^(\S*):(\d*):(\d*): ([EW]\d+) (.*)$'
+ let l:output = []
+
+ " lines are formatted as follows:
+ " file.py:21:26: W291 trailing whitespace
+ for l:match in ale#util#GetMatches(a:lines, l:pattern)
+ if(l:match[4] is# 'W291' || l:match[4] is# 'W293')
+ \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
+ " Skip warnings for trailing whitespace if the option is off.
+ continue
+ endif
+
+ if l:match[4] is# 'W391'
+ \&& !ale#Var(a:buffer, 'warn_about_trailing_blank_lines')
+ " Skip warnings for trailing blank lines if the option is off
+ continue
+ endif
+
+ let l:item = {
+ \ 'lnum': l:match[2] + 0,
+ \ 'col': l:match[3] + 0,
+ \ 'type': l:match[4][0],
+ \ 'sub_type': 'style',
+ \ 'text': l:match[5],
+ \ 'code': l:match[4],
+ \}
+
+ " E999 and E112 are syntax errors.
+ if l:match[4] is# 'E999' || l:match[4] is# 'E112'
+ unlet l:item.sub_type
+ endif
+
+ call add(l:output, l:item)
+ endfor
+
+ return l:output
+endfunction
+
+call ale#linter#Define('python', {
+\ 'name': 'pycodestyle',
+\ 'executable': function('ale_linters#python#pycodestyle#GetExecutable'),
+\ 'command': function('ale_linters#python#pycodestyle#GetCommand'),
+\ 'callback': 'ale_linters#python#pycodestyle#Handle',
+\})