Inconsistent autocompletion #5549
Description
Describe the bug
I’ve encountered two related issues with autocompletion in Marimo notebooks:
1. Cross-cell Autocompletion Doesn’t Pick Up Previous Definitions:
When I define a variable or function (e.g., optimizer22) in one cell, and then try to use it in a different cell (e.g., typing optim), the autocompletion does not suggest optimizer22. This breaks the expectation of notebook-style workflows where previously defined variables should be accessible across cells for completion.
2. Autocompletion Stops Working Mid-Session
Occasionally, during normal use, autocompletion stops functioning entirely, even though the kernel remains responsive and code execution still works. To resolve this, I need to manually restart the kernel, which disrupts workflow.
Environment
Here is my pyproject.toml and marimo.toml and I have installed lsp using brew install python-lsp-server
[project]
name = "deeplearning"
version = "0.1.0"
description = "Add your description here"
readme = "README.md"
requires-python = ">=3.12"
dependencies = [
"ipython>=8.27.0",
"jupyterlab>=4.2.5",
"marimo[lsp]>=0.14.10",
"matplotlib>=3.9.2",
"numpy>=2.1.1",
"openai>=1.93.0",
"pandas>=2.2.3",
"polars>=1.8.2",
"seaborn>=0.13.2",
"torch>=2.4.1",
]
[tool.marimo.experimental]
lsp = true
# Language server configuration
[tool.marimo.language_servers.pylsp]
enabled = true # Enable/disable the Python language server
enable_mypy = false # Type checking with mypy (enabled by default, if installed)
enable_ruff = true # Linting with ruff (enabled by default, if installed)
enable_flake8 = false # Linting with flake8
enable_pydocstyle = false # Check docstring style
enable_pylint = false # Linting with pylint
enable_pyflakes = false # Syntax checking with pyflakes
# Diagnostics configuration
[tool.marimo.diagnostics]
enabled = true # Show diagnostics in the editor
marimo.toml
[ai]
rules = ""
mode = "manual"
[ai.google]
[ai.open_ai]
model = "gpt-4.1"
api_key = "sk-proj-tDg_******"
[ai.anthropic]
[ai.bedrock]
[display]
dataframes = "rich"
cell_output = "below"
theme = "system"
reference_highlighting = false
default_width = "full"
code_editor_font_size = 16
default_table_page_size = 15
[server]
browser = "default"
follow_symlink = false
[save]
autosave_delay = 1000
format_on_save = false
autosave = "after_delay"
[package_management]
manager = "uv"
[formatting]
line_length = 79
[runtime]
std_stream_max_bytes = 1000000
default_sql_output = "auto"
auto_reload = "off"
output_max_bytes = 8000000
auto_instantiate = true
on_cell_change = "autorun"
reactive_tests = true
watcher_on_save = "lazy"
[keymap]
vimrc = "/Users/shoaib/git-projects/configs/.vimrc"
preset = "vim"
[keymap.overrides]
[snippets]
custom_paths = []
include_default_snippets = true
[language_servers.pylsp]
enable_pyflakes = false
enabled = true
enable_pylint = false
enable_pydocstyle = false
enable_mypy = true
enable_ruff = true
enable_flake8 = false
[diagnostics]
[experimental]
[completion]
copilot = false
activate_on_typing = true
marimo env
{
"marimo": "0.14.10",
"OS": "Darwin",
"OS Version": "24.5.0",
"Processor": "arm",
"Python Version": "3.12.7",
"Binaries": {
"Browser": "138.0.7204.93",
"Node": "v24.3.0"
},
"Dependencies": {
"click": "8.2.1",
"docutils": "0.21.2",
"itsdangerous": "2.2.0",
"jedi": "0.19.2",
"markdown": "3.8.2",
"narwhals": "1.45.0",
"packaging": "25.0",
"psutil": "7.0.0",
"pygments": "2.19.2",
"pymdown-extensions": "10.16",
"pyyaml": "6.0.2",
"starlette": "0.47.1",
"tomlkit": "0.13.3",
"typing-extensions": "4.14.1",
"uvicorn": "0.35.0",
"websockets": "15.0.1"
},
"Optional Dependencies": {
"nbformat": "5.10.4",
"openai": "1.93.0",
"pandas": "2.3.0",
"polars": "1.31.0",
"loro": "1.5.2",
"python-lsp-ruff": "2.2.2",
"python-lsp-server": "1.12.2",
"ruff": "0.12.2"
},
"Experimental Flags": {
"lsp": true
}
}
Code to reproduce
No response