pylance-release UV generated project has no completions

Type: Bug

When I create my project with uv (tested also with newest version 0.7.6) the auto completion for imports does not work. VSCode itself recognizes the modules if manually imported but not with auto import help.

Commands to recreate:

uv init demo-bug --package
cat > demo_bug/src/demo_bug/hello.py << EOF
def sample():
  pass
EOF
uv sync

Hint: Be sure that the .venv is the active environment in vscode!

Now from __init__.py the autoimport if I type sam and press ctrl + space should be visible. But is not:

Structure files:

How imports work (but this is not the way to go because statically copied):

If you run uv sync --no-editable and afterwards in vscode clear cache and reload window. The import appears:

Structure with --no-editable:

Both variants know the modules if manually added

In both cases manually imported modules are correctly identified the only problem is the auto import from vscode:

Extension version: 2025.5.1 VS Code version: Code 1.100.2 (848b80aeb52026648a8ff9f7c45a9b0a80641e2e, 2025-05-14T21:47:40.416Z) OS version: Darwin arm64 24.5.0 Modes:

System Added Logs

2025-05-20 09:26:39.337 [info] (Client) Running with node: /Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist/.cache/node/node
2025-05-20 09:26:41.021 [info] (Client) Pylance async client (2025.5.1) started with python extension (2025.6.1)
2025-05-20 09:26:41.823 [info] [Info  - 09:26:41] (15035) Server root directory: file:///Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist
2025-05-20 09:26:41.827 [info] [Info  - 09:26:41] (15035) Pylance language server 2025.5.1 (pyright version 1.1.400, commit b962ffc2) starting
2025-05-20 09:26:41.829 [info] [Info  - 09:26:41] (15035) Starting service instance "demo-bug" for workspace "/Users/marbaced/tmp/uv-test/demo-bug"
2025-05-20 09:26:41.995 [info] [Info  - 09:26:41] (15035) Loading pyproject.toml file at /Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml
2025-05-20 09:26:41.995 [info] [Info  - 09:26:41] (15035) Pyproject file "/Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml" has no "[tool.pyright]" section.
2025-05-20 09:26:41.995 [info] [Info  - 09:26:41] (15035) Setting environmentName for service "demo-bug": "3.13.3 (.venv venv)"
2025-05-20 09:26:41.995 [info] [Info  - 09:26:41] (15035) Setting pythonPath for service "demo-bug": "/Users/marbaced/tmp/uv-test/test2/.venv/bin/python"
2025-05-20 09:26:41.995 [info] [Info  - 09:26:41] (15035) No include entries specified; assuming /Users/marbaced/tmp/uv-test/demo-bug
2025-05-20 09:26:41.995 [info] [Info  - 09:26:41] (15035) Auto-excluding **/node_modules
2025-05-20 09:26:41.996 [info] [Info  - 09:26:41] (15035) Auto-excluding **/__pycache__
2025-05-20 09:26:41.996 [info] [Info  - 09:26:41] (15035) Auto-excluding **/.*
2025-05-20 09:26:41.996 [info] [Info  - 09:26:41] (15035) Assuming Python version 3.13.3.final.0
2025-05-20 09:26:41.996 [info] [Info  - 09:26:41] (15035) Found 1 source file
2025-05-20 09:26:42.066 [info] [Info  - 09:26:42] (15035) Loading pyproject.toml file at /Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml
2025-05-20 09:26:42.066 [info] [Info  - 09:26:42] (15035) Pyproject file "/Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml" has no "[tool.pyright]" section.
2025-05-20 09:26:42.066 [info] [Info  - 09:26:42] (15035) Setting environmentName for service "demo-bug": "3.13.3 (.venv venv)"
2025-05-20 09:26:42.066 [info] [Info  - 09:26:42] (15035) Setting pythonPath for service "demo-bug": "/Users/marbaced/tmp/uv-test/test2/.venv/bin/python"
2025-05-20 09:26:42.066 [info] [Info  - 09:26:42] (15035) No include entries specified; assuming /Users/marbaced/tmp/uv-test/demo-bug
2025-05-20 09:26:42.066 [info] [Info  - 09:26:42] (15035) Auto-excluding **/node_modules
2025-05-20 09:26:42.066 [info] [Info  - 09:26:42] (15035) Auto-excluding **/__pycache__
2025-05-20 09:26:42.067 [info] [Info  - 09:26:42] (15035) Auto-excluding **/.*
2025-05-20 09:26:42.067 [info] [Info  - 09:26:42] (15035) Assuming Python version 3.13.3.final.0
2025-05-20 09:26:42.067 [info] [Info  - 09:26:42] (15035) Found 1 source file
2025-05-20 09:26:42.338 [info] [Info  - 09:26:42] (15035) BG: Priority queue background worker(2) root directory: file:///Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist
2025-05-20 09:26:42.344 [info] [Info  - 09:26:42] (15035) BG: Priority queue background worker(2) started
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Loading pyproject.toml file at /Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Pyproject file "/Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml" has no "[tool.pyright]" section.
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Setting environmentName for service "demo-bug": "3.13.3 (.venv venv)"
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Setting pythonPath for service "demo-bug": "/Users/marbaced/tmp/uv-test/demo-bug/.venv/bin/python"
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) No include entries specified; assuming /Users/marbaced/tmp/uv-test/demo-bug
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Auto-excluding **/node_modules
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Auto-excluding **/__pycache__
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Auto-excluding **/.*
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Assuming Python version 3.13.3.final.0
2025-05-20 09:26:53.463 [info] [Info  - 09:26:53] (15035) Found 1 source file
2025-05-20 09:27:02.487 [info] [Info  - 09:27:02] (15035) BG: Indexer background runner(3) root directory: file:///Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist (index)
2025-05-20 09:27:02.487 [info] [Info  - 09:27:02] (15035) BG: Indexing(3) started
2025-05-20 09:27:03.085 [info] [Info  - 09:27:03] (15035) BG: scanned(3) 1981 files over 1 exec env
2025-05-20 09:27:07.460 [info] [Info  - 09:27:07] (15035) BG: [IDX(3)] Long operation: index execution environment file:///Users/marbaced/tmp/uv-test/demo-bug (4190ms)
2025-05-20 09:27:07.505 [info] [Info  - 09:27:07] (15035) BG: [IDX(3)] Long operation: index packages file:///Users/marbaced/tmp/uv-test/demo-bug (4247ms)
2025-05-20 09:27:07.505 [info] [Info  - 09:27:07] (15035) BG: indexed(3) 1981 files over 1 exec env
2025-05-20 09:27:07.671 [info] [Info  - 09:27:07] (15035) BG: Indexing finished(3).
2025-05-20 09:27:09.964 [info] [Info  - 09:27:09] (15035) Found 2 source files
2025-05-20 09:27:41.561 [info] [Info  - 09:27:41] (15035) BG: Indexer background runner(4) root directory: file:///Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist (refresh)
2025-05-20 09:27:41.561 [info] [Info  - 09:27:41] (15035) BG: Indexing(4) started
2025-05-20 09:27:41.561 [info] [Info  - 09:27:41] (15035) BG: Indexing finished(4).
2025-05-20 09:27:48.863 [info] (Client) Running with node: /Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist/.cache/node/node
2025-05-20 09:27:49.415 [info] (Client) Pylance async client (2025.5.1) started with python extension (2025.6.1)
2025-05-20 09:27:49.596 [info] [Info  - 09:27:49] (16987) Server root directory: file:///Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist
2025-05-20 09:27:49.596 [info] [Info  - 09:27:49] (16987) Pylance language server 2025.5.1 (pyright version 1.1.400, commit b962ffc2) starting
2025-05-20 09:27:49.600 [info] [Info  - 09:27:49] (16987) Starting service instance "demo-bug" for workspace "/Users/marbaced/tmp/uv-test/demo-bug"
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Loading pyproject.toml file at /Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Pyproject file "/Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml" has no "[tool.pyright]" section.
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Setting environmentName for service "demo-bug": "3.13.3 (.venv venv)"
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Setting pythonPath for service "demo-bug": "/Users/marbaced/tmp/uv-test/test2/.venv/bin/python"
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) No include entries specified; assuming /Users/marbaced/tmp/uv-test/demo-bug
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Auto-excluding **/node_modules
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Auto-excluding **/__pycache__
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Auto-excluding **/.*
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Assuming Python version 3.13.3.final.0
2025-05-20 09:27:50.460 [info] [Info  - 09:27:50] (16987) Found 2 source files
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Loading pyproject.toml file at /Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Pyproject file "/Users/marbaced/tmp/uv-test/demo-bug/pyproject.toml" has no "[tool.pyright]" section.
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Setting environmentName for service "demo-bug": "3.13.3 (.venv venv)"
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Setting pythonPath for service "demo-bug": "/Users/marbaced/tmp/uv-test/test2/.venv/bin/python"
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) No include entries specified; assuming /Users/marbaced/tmp/uv-test/demo-bug
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Auto-excluding **/node_modules
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Auto-excluding **/__pycache__
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Auto-excluding **/.*
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Assuming Python version 3.13.3.final.0
2025-05-20 09:27:50.462 [info] [Info  - 09:27:50] (16987) Found 2 source files
2025-05-20 09:27:50.465 [info] [Info  - 09:27:50] (16987) BG: Priority queue background worker(2) root directory: file:///Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist
2025-05-20 09:27:50.465 [info] [Info  - 09:27:50] (16987) BG: Priority queue background worker(2) started
2025-05-20 09:27:50.465 [info] [Info  - 09:27:50] (16987) BG: Indexer background runner(3) root directory: file:///Users/marbaced/.vscode/extensions/ms-python.vscode-pylance-2025.5.1/dist (index)
2025-05-20 09:27:50.467 [info] [Info  - 09:27:50] (16987) BG: Indexing(3) started
2025-05-20 09:27:50.717 [info] [Info  - 09:27:50] (16987) BG: scanned(3) 1984 files over 1 exec env
2025-05-20 09:27:51.092 [info] [Info  - 09:27:51] (16987) BG: indexed(3) 1984 files over 1 exec env
2025-05-20 09:27:51.243 [info] [Info  - 09:27:51] (16987) BG: Indexing finished(3).

System Info

Item	Value
CPUs	Apple M1 Max (10 x 2400)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	2, 4, 14
Memory (System)	32.00GB (0.10GB free)
Process Argv	--crash-reporter-id a8977bc7-df5e-4672-90cc-bfa2d2729921 --crash-reporter-id a8977bc7-df5e-4672-90cc-bfa2d2729921
Screen Reader	no
VM	0%

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pythonrstrctxt:31112756
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dwcopilot:31170013
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
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copilot_t_ci:31222730
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pythoneinst12:31285622
bgtreat:31268568
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pythonrdcb7cf:31296842
usemplatestapi:31297334
7bj51361:31289155
747dc170:31275177
aj496949:31278748
aj953862:31281341
generatesymbolt:31295002
convertfstringf:31295003
gendocf:31295004

May 20 '25 09:05 BlackDark

editable install is considered as 3rd party package. so it won't treat it same as user file for auto/add imports.

see this https://github.com/microsoft/pylance-release/blob/main/docs/settings/python_analysis_packageIndexDepths.md on how to adjust default indexing behavior for 3rd party libaries.

May 20 '25 17:05 heejaechang

Hi @BlackDark , I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

Potentially Related Issues:

Enable Pylance to recognize uv editable installs – Explains that uv’s dynamic editable installs aren’t recognized by default. #6353
How to make Pylance recognize packages installed in editable mode? – Discusses missing import errors with editable installs and links to installation instructions. #6923
Auto-import completions not triggering despite proper indexing with poetry2.0 and python3.13 – Covers similar auto-import issues in different installation contexts. #7024

Potential Workarounds:

Enable compatibility mode: Run the following command to install your package with compatibility settings so that Pylance can recognize the dynamic imports used by uv’s editable install:
```
uv pip install --config-setting editable_mode=compat
```

The team will respond to your issue shortly. Please note this is a trial feature and may not be fully accurate. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or was incorrect, please give it a 👎. Your feedback helps us improve!

May 20 '25 20:05 heejaechang

editable install is considered as 3rd party package. so it won't treat it same as user file for auto/add imports.

see this main/docs/settings/python_analysis_packageIndexDepths.md on how to adjust default indexing behavior for 3rd party libaries.

With the packageIndexDepth did not get it to work at all. After digging through the links in the AI reply I got to the following configs:

pyproject.toml

[project]
    name = "demo-bug"
    version = "0.1.0"
    description = "Add your description here"
    readme = "README.md"
    requires-python = ">=3.13"
    dependencies = []

    [project.scripts]
        demo-bug = "demo_bug:main"

[build-system]
    build-backend = "hatchling.build"
    requires = ["hatchling"]

# https://hatch.pypa.io/1.12/config/build/#dev-mode
# https://microsoft.github.io/pyright/#/import-resolution?id=editable-installs
# requires package "editables"
[tool.hatch.build]
    dev-mode-exact = true

[dependency-groups]
dev = [
    "editables>=0.5",
]

Which creates this:

And now i get completions. Is this the or a correct way to address this issue or is it not the best way to do this?

May 21 '25 11:05 BlackDark

@rchiodo is this your editable install feature working?

May 21 '25 17:05 heejaechang

Yeah could be. The easiest way to tell is if it doesn't work with 3.12. Editable install support requires 3.13.

May 21 '25 17:05 rchiodo

Tested with 3.12:

May 22 '25 08:05 BlackDark

found the bug. will be fixed in next release.

May 22 '25 09:05 heejaechang

This issue has been fixed in prerelease version 2025.5.101, which we've just released. You can find the changelog here: CHANGELOG.md

Jun 03 '25 22:06 debonte

Tested with the same setup and still no completion support. Of course installed the prerelease version of pylance addon.

[project]
    name = "demo-bug"
    version = "0.1.0"
    description = "Add your description here"
    readme = "README.md"
    authors = [{ name = "changeme", email = "changeme" }]
    requires-python = ">=3.12"
    dependencies = []

    [project.scripts]
        demo-bug = "demo_bug:main"

[build-system]
    build-backend = "hatchling.build"
    requires = ["hatchling"]

# works when those are enabled
    # # https://hatch.pypa.io/1.12/config/build/#dev-mode
    # # https://microsoft.github.io/pyright/#/import-resolution?id=editable-installs
    # # requires package "editables"
    # [tool.hatch.build]
    #     dev-mode-exact = true

    # [dependency-groups]
    #     dev = ["editables>=0.5"]

Following things tested:

python3.12 -> not working
python3.13 -> not working
config in vscode is enabled for edtiable installs support
still only works if I activate the commented lines in the toml for dev-mode-exact

Question: is this as expected or still something fishy?

Jun 04 '25 09:06 BlackDark

I have the exact same issue as @BlackDark described in here. The issue persists with the pre-release pylance 2025.5.101 version.

Jun 09 '25 16:06 dainmik

Yeah I'm not sure this is fixed either:

Jun 09 '25 16:06 rchiodo

I am probably running into the same issue.

I have a project structure like this:

.
├── apps/
│   └── qwe-web/
│       └── __init__.py
└── components/
    └── flags/
        └── src/
            └── flags/
                └── __init__.py

I'm importing the "components" e.g. "flags" as local packages.

When I build the package as editable via:

[build-system]
requires = ["uv_build>=0.7.19,<0.8.0"]
build-backend = "uv_build"

then I can not get import completions at all, no matter what I configure in python.analysis.extraPaths.

When instead of the build-system I set:

[tool.uv]
package = false

then it will build a "virtual" (which is not an option) and then I can get import completions but they are wrong.

In my settings.json I have:

"python.analysis.extraPaths": [
    "components/*/src",
],
"python.analysis.include": [
    "components/**",
],

but the import completion suggestions components.flags.src.flags. I expected to get a completion for flags.

When I set

"python.analysis.extraPaths": [
    "components/flags/src",
],

then the import completion works as expected. But we have a long list of components. It's not acceptable having to manually maintain this list of extraPaths. It should work via wildcards.

Now I'm stuck. How to get this to work? Is this the same bug described here?

Jul 07 '25 13:07 Spenhouet

so, no auto import in completion, but how about from code actions?

Jul 07 '25 18:07 heejaechang

hmm.. it works for me.

anyway, it sounds like we want to improve our support on editable installs.

Jul 07 '25 18:07 heejaechang

extra path doesn't support wildcard such as * unlike include/exclude

Jul 07 '25 19:07 heejaechang

opened issue - https://github.com/microsoft/pylance-release/issues/7396 and https://github.com/microsoft/pylance-release/issues/7397

Jul 07 '25 19:07 heejaechang

@BlackDark can you actually just zip up the folder and provide us the zip here? that will make it easier for us to take a look? since you already have repro steps?

Jul 07 '25 19:07 heejaechang

@heejaechang My code is already a test repo. I ZIPed that for you.

Reproduction

Download and open in VS Code: pylance-bug-7242.zip
Execute VS code Task "Install Dependencies"
Open apps/qwe-web/main.py
In Line 26 feature is missing an import
Open the auto import completion

Expected Behavior

The import completion shows that feature can be imported from the flags package

Actual Behavior

Additional Context

Opening the import completions sometimes only shows

No suggestions.

When opening them multiple times it starts showing suggestions (just not the right ones).

Environment

Pylance version: 2025.6.2 OS and version: Windows 11 with WSL and Ubuntu 20.04 Python version: 3.10 and 3.13.5 via uv

Jul 08 '25 05:07 Spenhouet

@BlackDark can you actually just zip up the folder and provide us the zip here? that will make it easier for us to take a look? since you already have repro steps?

@heejaechang Sure here is the repo: https://github.com/BlackDark/pylance-release-bug-7242 Changed the to be imported name to be save that no other equally named exports exist :D

Jul 10 '25 07:07 BlackDark

pylance-release pylance-release copied to clipboard

UV generated project has no completions

Commands to recreate:

How imports work (but this is not the way to go because statically copied):

Both variants know the modules if manually added

Reproduction

Expected Behavior

Actual Behavior

Additional Context

Environment

pylance-release
pylance-release copied to clipboard