+" Author: w0rp <devw0rp@gmail.com>
+" Description: pyflakes for python files
+
+call ale#Set('python_pyflakes_executable', 'pyflakes')
+call ale#Set('python_pyflakes_use_global', get(g:, 'ale_use_global_executables', 0))
+call ale#Set('python_pyflakes_auto_pipenv', 0)
+call ale#Set('python_pyflakes_auto_poetry', 0)
+call ale#Set('python_pyflakes_auto_uv', 0)
+
+function! ale_linters#python#pyflakes#GetExecutable(buffer) abort
+ if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_pyflakes_auto_pipenv'))
+ \ && ale#python#PipenvPresent(a:buffer)
+ return 'pipenv'
+ endif
+
+ if (ale#Var(a:buffer, 'python_auto_poetry') || ale#Var(a:buffer, 'python_pyflakes_auto_poetry'))
+ \ && ale#python#PoetryPresent(a:buffer)
+ return 'poetry'
+ endif
+
+ if (ale#Var(a:buffer, 'python_auto_uv') || ale#Var(a:buffer, 'python_pyflakes_auto_uv'))
+ \ && ale#python#UvPresent(a:buffer)
+ return 'uv'
+ endif
+
+ return ale#python#FindExecutable(a:buffer, 'python_pyflakes', ['pyflakes'])
+endfunction
+
+function! ale_linters#python#pyflakes#GetCommand(buffer) abort
+ let l:executable = ale_linters#python#pyflakes#GetExecutable(a:buffer)
+
+ let l:exec_args = l:executable =~? '\(pipenv\|poetry\|uv\)$'
+ \ ? ' run pyflakes'
+ \ : ''
+
+ return ale#Escape(l:executable)
+ \ . l:exec_args
+ \ . ' %t'
+endfunction
+
+function! ale_linters#python#pyflakes#Handle(buffer, lines) abort
+ let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):(\d+)?:? (.+)$'
+ let l:output = []
+
+ for l:match in ale#util#GetMatches(a:lines, l:pattern)
+ call add(l:output, {
+ \ 'lnum': l:match[1] + 0,
+ \ 'col': l:match[2] + 0,
+ \ 'text': l:match[3],
+ \})
+ endfor
+
+ return l:output
+endfunction
+
+call ale#linter#Define('python', {
+\ 'name': 'pyflakes',
+\ 'executable': function('ale_linters#python#pyflakes#GetExecutable'),
+\ 'command': function('ale_linters#python#pyflakes#GetCommand'),
+\ 'callback': 'ale_linters#python#pyflakes#Handle',
+\ 'output_stream': 'both',
+\})