dense-analysis
Python code-completion not working
Information
VIM version
VIM - Vi IMproved 8.2 (2019 DEC 12, Compiled Jan 16 2022)
Operating System: Arch Linux
Whats wrong: Code-completion isn't working even though I think I have everything setup correctly.
So Basically I have already installed the python language server through:
pip install 'python-language-server[all]'
Reproducing the bug
- I wrote this in my vimrc:
" Autocompletion settings
let g:ale_completion_enabled = 1
set complete+=kspell
set completeopt=menuone,longest,noselect
let g:ale_completion_enabled = 1
" Ale
let g:ale_linters = {
\ 'python': ['flake8', 'mypy', 'pylsp'],
\}
let g:ale_fixers = {
\ '*': ['remove_trailing_lines', 'trim_whitespace'],
\ 'python': ['black', 'isort'],
\}
let g:ale_fix_on_save = 1
- Fixing and linting worked flawlessly but no autocompletion.
### :ALEInfo
Current Filetype: python
Available Linters: ['bandit', 'cspell', 'flake8', 'flakehell', 'jedils', 'mypy', 'prospector', 'pycodest
yle', 'pydocstyle', 'pyflakes', 'pylama', 'pylint', 'pylsp', 'pyre', 'pyright', 'vulture']
Enabled Linters: ['flake8', 'mypy', 'pylsp']
Ignored Linters: []
Suggested Fixers:
'add_blank_lines_for_python_control_statements' - Add blank lines before control statements.
'autoflake' - Fix flake issues with autoflake.
'autoimport' - Fix import issues with autoimport.
'autopep8' - Fix PEP8 issues with autopep8.
'black' - Fix PEP8 issues with black.
'isort' - Sort Python imports with isort.
'remove_trailing_lines' - Remove all blank lines at the end of a file.
'reorder-python-imports' - Sort Python imports with reorder-python-imports.
'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.
'yapf' - Fix Python files with yapf.
Linter Variables:
let g:ale_python_auto_pipenv = 0
let g:ale_python_auto_poetry = 0
let g:ale_python_flake8_auto_pipenv = 0
let g:ale_python_flake8_auto_poetry = 0
let g:ale_python_flake8_change_directory = 'project'
let g:ale_python_flake8_executable = 'flake8'
let g:ale_python_flake8_options = ''
let g:ale_python_flake8_use_global = 0
let g:ale_python_mypy_auto_pipenv = 0
let g:ale_python_mypy_auto_poetry = 0
let g:ale_python_mypy_executable = 'mypy'
let g:ale_python_mypy_ignore_invalid_syntax = 0
let g:ale_python_mypy_options = ''
let g:ale_python_mypy_show_notes = 1
let g:ale_python_mypy_use_global = 0
let g:ale_python_pylsp_auto_pipenv = 0
let g:ale_python_pylsp_auto_poetry = 0
let g:ale_python_pylsp_config = {}
let g:ale_python_pylsp_executable = 'pylsp'
let g:ale_python_pylsp_options = ''
let g:ale_python_pylsp_use_global = 0
Global Variables:
let g:ale_cache_executable_check_failures = v:null
let g:ale_change_sign_column_color = 0
let g:ale_command_wrapper = ''
let g:ale_completion_delay = 100
let g:ale_completion_enabled = 1
let g:ale_completion_max_suggestions = 50
let g:ale_disable_lsp = 0
let g:ale_echo_cursor = 1
let g:ale_echo_msg_error_str = 'Error'
let g:ale_echo_msg_format = '%code: %%s'
let g:ale_echo_msg_info_str = 'Info'
let g:ale_echo_msg_warning_str = 'Warning'
let g:ale_enabled = 1
let g:ale_fix_on_save = 1
let g:ale_fixers = {'*': ['remove_trailing_lines', 'trim_whitespace'], 'python': ['black', 'isort']}
let g:ale_history_enabled = 1
let g:ale_history_log_output = 1
let g:ale_keep_list_window_open = 0
let g:ale_lint_delay = 200
let g:ale_lint_on_enter = 1
let g:ale_lint_on_filetype_changed = 1
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_save = 1
let g:ale_lint_on_text_changed = 'normal'
let g:ale_linter_aliases = {}
let g:ale_linters = {'python': ['flake8', 'mypy', 'pylsp']}
let g:ale_linters_explicit = 0
let g:ale_linters_ignore = {}
let g:ale_list_vertical = 0
let g:ale_list_window_size = 10
let g:ale_loclist_msg_format = '%code: %%s'
let g:ale_max_buffer_history_size = 20
let g:ale_max_signs = -1
let g:ale_maximum_file_size = v:null
let g:ale_open_list = 0
let g:ale_pattern_options = v:null
let g:ale_pattern_options_enabled = v:null
let g:ale_root = {}
let g:ale_set_balloons = 0
let g:ale_set_highlights = 1
let g:ale_set_loclist = 1
let g:ale_set_quickfix = 0
let g:ale_set_signs = 1
let g:ale_sign_column_always = 0
let g:ale_sign_error = '>>'
let g:ale_sign_info = '--'
let g:ale_sign_offset = 1000000
let g:ale_sign_style_error = '>>'
let g:ale_sign_style_warning = '--'
let g:ale_sign_warning = '--'
let g:ale_sign_highlight_linenrs = 0
let g:ale_statusline_format = v:null
let g:ale_type_map = {}
let g:ale_use_global_executables = v:null
let g:ale_virtualtext_cursor = 0
let g:ale_warn_about_trailing_blank_lines = 1
let g:ale_warn_about_trailing_whitespace = 1
Command History:
(executable check - success) flake8
(finished - exit code 0) ['/bin/sh', '-c', 'cd ''/var/tmp'' && ''flake8'' --version']
<<<OUTPUT STARTS>>>
3.8.4 (mccabe: 0.6.1, pycodestyle: 2.6.0, pyflakes: 2.2.0) CPython 3.10.2 on Linux
<<<OUTPUT ENDS>>>
(executable check - failure) mypy
(executable check - failure) pylsp
(finished - exit code 1) ['/bin/sh', '-c', 'cd ''/var/tmp'' && ''flake8'' --format=default --stdin-displ
ay-name ''/var/tmp/pypyXX7wyjdL.py'' - < ''/tmp/vIKH2gq/1/pypyXX7wyjdL.py''']
<<<OUTPUT STARTS>>>
/var/tmp/pypyXX7wyjdL.py:1:1: W391 blank line at end of file
<<<OUTPUT ENDS>>>
Seems ALE is unable to find the pylsp executable:
(executable check - failure) pylsp
Make sure it is available in your PATH or if you use pipenv or poetry ensure they can find and execute pypls.
I'm encountering what seems to be the same bug ; to note, pip install "python-language-server[all]" did not install a pylsp command but a pyls command. Might that be the source of the problem?
@Bastes there seem to be two python language servers:
- https://github.com/palantir/python-language-server (pyls)
- https://github.com/python-lsp/python-lsp-server (pylsp)
Not familiar with either but ALE seems to expect the second one (pylsp).
Thanks @hsanson I know what I was messing up thanks to you :slightly_smiling_face: I'm using asdf to manage the multiple versions of languages I'm using and I was attempting to use pylsp but it was failing to find the executable, so I had switched to pyls to try.
Turns out I had to re-make asdf's shims so that pylsp's shim was in the $PATH.
Now it works and all :slightly_smiling_face: thank you kindly.