forked from github-mirrors/ale
Add a unimport linter for Python files (#4058)
Unimport (https://github.com/hakancelik96/unimport/) is a linter, formatter for finding and removing unused import statements. This introduces linting support, although fixer support could come later.
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" Author: Author: Jon Parise <jon@indelible.org>
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call ale#Set('python_unimport_executable', 'unimport')
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call ale#Set('python_unimport_options', '')
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call ale#Set('python_unimport_use_global', get(g:, 'ale_use_global_executables', 0))
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call ale#Set('python_unimport_auto_pipenv', 0)
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call ale#Set('python_unimport_auto_poetry', 0)
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function! ale_linters#python#unimport#GetExecutable(buffer) abort
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if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_unimport_auto_pipenv'))
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\ && ale#python#PipenvPresent(a:buffer)
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return 'pipenv'
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endif
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if (ale#Var(a:buffer, 'python_auto_poetry') || ale#Var(a:buffer, 'python_unimport_auto_poetry'))
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\ && ale#python#PoetryPresent(a:buffer)
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return 'poetry'
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endif
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return ale#python#FindExecutable(a:buffer, 'python_unimport', ['unimport'])
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endfunction
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function! ale_linters#python#unimport#GetCommand(buffer) abort
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let l:executable = ale_linters#python#unimport#GetExecutable(a:buffer)
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let l:exec_args = l:executable =~? 'pipenv\|poetry$'
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\ ? ' run unimport'
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\ : ''
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return '%e' . l:exec_args
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\ . ale#Pad(ale#Var(a:buffer, 'python_unimport_options'))
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\ . ' --check'
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\ . ' %t'
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endfunction
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function! ale_linters#python#unimport#GetCwd(buffer) abort
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let l:project_root = ale#python#FindProjectRoot(a:buffer)
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return !empty(l:project_root)
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\ ? l:project_root
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\ : expand('#' . a:buffer . ':p:h')
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endfunction
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function! ale_linters#python#unimport#Handle(buffer, lines) abort
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let l:output = ale#python#HandleTraceback(a:lines, 10)
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if !empty(l:output)
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return l:output
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endif
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" Matches lines like:
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"
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" urllib.parse at path/to/file.py:9
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let l:pattern = '\v(.+) at [^:]+:(\d+)$'
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for l:match in ale#util#GetMatches(a:lines, l:pattern)
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call add(l:output, {
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\ 'lnum': l:match[2] + 0,
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\ 'type': 'W',
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\ 'text': 'unused: ' . l:match[1],
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\})
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endfor
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return l:output
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endfunction
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call ale#linter#Define('python', {
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\ 'name': 'unimport',
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\ 'executable': function('ale_linters#python#unimport#GetExecutable'),
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\ 'cwd': function('ale_linters#python#unimport#GetCwd'),
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\ 'command': function('ale_linters#python#unimport#GetCommand'),
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\ 'callback': 'ale_linters#python#unimport#Handle',
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\})
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@ -1066,6 +1066,58 @@ g:ale_python_reorder_python_imports_use_global
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See |ale-integrations-local-executables|
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===============================================================================
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unimport *ale-python-unimport*
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`unimport` will be run from a detected project root, per |ale-python-root|.
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g:ale_python_unimport_auto_pipenv *g:ale_python_unimport_auto_pipenv*
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*b:ale_python_unimport_auto_pipenv*
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Type: |Number|
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Default: `0`
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Detect whether the file is inside a pipenv, and set the executable to `pipenv`
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if true. This is overridden by a manually-set executable.
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g:ale_python_unimport_auto_poetry *g:ale_python_unimport_auto_poetry*
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*b:ale_python_unimport_auto_poetry*
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Type: |Number|
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Default: `0`
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Detect whether the file is inside a poetry, and set the executable to `poetry`
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if true. This is overridden by a manually-set executable.
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g:ale_python_unimport_executable *g:ale_python_mypy_executable*
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*b:ale_python_unimport_executable*
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Type: |String|
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Default: `'unimport'`
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See |ale-integrations-local-executables|
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Set this to `'pipenv'` to invoke `'pipenv` `run` `unimport'`.
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Set this to `'poetry'` to invoke `'poetry` `run` `unimport'`.
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g:ale_python_unimport_options *g:ale_python_mypy_options*
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*b:ale_python_unimport_options*
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Type: |String|
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Default: `''`
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This variable can be changed to add command-line arguments to the unimport
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invocation.
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g:ale_python_unimport_use_global *g:ale_python_mypy_use_global*
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*b:ale_python_unimport_use_global*
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Type: |Number|
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Default: `get(g:, 'ale_use_global_executables', 0)`
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See |ale-integrations-local-executables|
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===============================================================================
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vulture *ale-python-vulture*
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@ -463,6 +463,7 @@ Notes:
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* `pyre`
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* `pyright`
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* `reorder-python-imports`
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* `unimport`
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* `vulture`!!
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* `yapf`
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* QML
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@ -3081,6 +3081,7 @@ documented in additional help files.
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pyre..................................|ale-python-pyre|
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pyright...............................|ale-python-pyright|
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reorder-python-imports................|ale-python-reorder_python_imports|
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unimport..............................|ale-python-unimport|
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vulture...............................|ale-python-vulture|
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yapf..................................|ale-python-yapf|
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qml.....................................|ale-qml-options|
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@ -472,6 +472,7 @@ formatting.
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* [pyre](https://github.com/facebook/pyre-check) :warning:
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* [pyright](https://github.com/microsoft/pyright)
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* [reorder-python-imports](https://github.com/asottile/reorder_python_imports)
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* [unimport](https://github.com/hakancelik96/unimport)
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* [vulture](https://github.com/jendrikseipp/vulture) :warning: :floppy_disk:
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* [yapf](https://github.com/google/yapf)
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* QML
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@ -0,0 +1,18 @@
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Before:
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runtime ale_linters/python/unimport.vim
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After:
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call ale#linter#Reset()
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Execute(The unimport handler should handle import warnings):
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AssertEqual
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\ [
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\ {
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\ 'lnum': 9,
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\ 'type': 'W',
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\ 'text': 'unused: urllib.parse',
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\ },
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\ ],
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\ ale_linters#python#unimport#Handle(1, [
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\ 'urllib.parse at path/to/file.py:9',
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\ ])
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Before:
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call ale#assert#SetUpLinterTest('python', 'unimport')
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call ale#test#SetFilename('test.py')
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let b:bin_dir = has('win32') ? 'Scripts' : 'bin'
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After:
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unlet! b:executable
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unlet! b:bin_dir
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call ale#assert#TearDownLinterTest()
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Execute(The unimport callbacks should return the correct default values):
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AssertLinter 'unimport', ale#Escape('unimport') . ' --check %t'
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Execute(The unimport executable should be configurable, and escaped properly):
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let b:ale_python_unimport_executable = 'foobar'
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AssertLinter 'foobar', ale#Escape('foobar') . ' --check %t'
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Execute(The unimport command callback should let you set options):
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let b:ale_python_unimport_options = '--gitignore'
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AssertLinter 'unimport', ale#Escape('unimport') . ' --gitignore --check %t'
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Execute(The unimport command should switch directories to the detected project root):
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call ale#test#SetFilename('../test-files/python/no_virtualenv/subdir/foo/bar.py')
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AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/python/no_virtualenv/subdir')
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AssertLinter 'unimport', ale#Escape('unimport') . ' --check %t'
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Execute(The unimport callbacks should detect virtualenv directories and switch to the project root):
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call ale#test#SetFilename('../test-files/python/with_virtualenv/subdir/foo/bar.py')
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let b:executable = ale#path#Simplify(
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\ g:dir . '/../test-files/python/with_virtualenv/env/' . b:bin_dir . '/unimport'
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\)
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AssertLinter b:executable, ale#Escape(b:executable) . ' --check %t'
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Execute(You should able able to use the global unimport instead):
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call ale#test#SetFilename('../test-files/python/with_virtualenv/subdir/foo/bar.py')
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let g:ale_python_unimport_use_global = 1
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AssertLinter 'unimport', ale#Escape('unimport') . ' --check %t'
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Execute(Setting executable to 'pipenv' appends 'run unimport'):
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let g:ale_python_unimport_executable = 'path/to/pipenv'
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AssertLinterCwd expand('#' . bufnr('') . ':p:h')
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AssertLinter 'path/to/pipenv', ale#Escape('path/to/pipenv') . ' run unimport --check %t'
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Execute(Pipenv is detected when python_unimport_auto_pipenv is set):
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call ale#test#SetFilename('../test-files/python/pipenv/whatever.py')
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let g:ale_python_unimport_auto_pipenv = 1
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AssertLinterCwd expand('#' . bufnr('') . ':p:h')
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AssertLinter 'pipenv', ale#Escape('pipenv') . ' run unimport --check %t'
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Execute(Setting executable to 'poetry' appends 'run unimport'):
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let g:ale_python_unimport_executable = 'path/to/poetry'
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AssertLinterCwd expand('#' . bufnr('') . ':p:h')
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AssertLinter 'path/to/poetry', ale#Escape('path/to/poetry') . ' run unimport --check %t'
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Execute(Poetry is detected when python_unimport_auto_poetry is set):
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call ale#test#SetFilename('../test-files/python/poetry/whatever.py')
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let g:ale_python_unimport_auto_poetry = 1
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AssertLinterCwd expand('#' . bufnr('') . ':p:h')
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AssertLinter 'poetry', ale#Escape('poetry') . ' run unimport --check %t'
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