Pylance-release: Pylance doesn't suggest the methods in a class

[albireox]

Environment data

• Language Server version: 2020.6.1
• OS and version: macOS 10.15.5
• Python version (& distribution if applicable, e.g. Anaconda): pyenv 3.8.3

Actual behaviour

I'd expect that inside a class, if I type self. Pylance would autosuggest the methods in that class first, along with their docstrings. This is what happens using Jedi. Instead, Pylance seems to think for a long time but ultimately it doesn't suggest anything. If I force the suggestion box or start typing, then I can see the methods but they are not marked as such (the icon is abc) and they are not prioritised so I think those are just the general VSCode suggestions. Once I have written the full name of the method and press ( the docstring is shown correctly.

Logs

[BG]   checking: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (17482ms)
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[BG] analyzing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py ...
[BG]   checking: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (9270ms)
[BG] analyzing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (9270ms)
[FG] parsing: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/2and3/operator.pyi (54ms)
[FG] binding: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/2and3/operator.pyi (5ms)
[FG] parsing: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/2and3/copy.pyi (1ms)
[FG] binding: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/2and3/copy.pyi (1ms)
[FG] parsing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/utils.py (43ms)
[FG] binding: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/utils.py (2ms)
[FG] parsing: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/2and3/uuid.pyi (12ms)
[FG] binding: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/2and3/uuid.pyi (2ms)
[BG] analyzing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py ...
[BG]   checking: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (9638ms)
[BG] analyzing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (9638ms)
[FG] parsing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (167ms)
[FG] binding: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (19ms)
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[BG]   binding: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (5ms)
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[FG] parsing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (86ms)
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[BG]   parsing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (18ms)
[BG]   binding: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (6ms)
[FG] parsing: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (51ms)
[FG] binding: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py (10ms)
[BG]   checking: /uufs/chpc.utah.edu/common/home/u0931042/software/github/target_selection/python/target_selection/xmatch.py ...
[BG]     parsing: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/2and3/_warnings.pyi (12ms)
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[BG]     parsing: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/3/configparser.pyi (17ms)
[BG]     binding: /uufs/chpc.utah.edu/common/home/u0931042/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2020.6.1/server/typeshed-fallback/stdlib/3/configparser.pyi (3ms)

[erictraut]

Thanks for reporting the problem. You are correct, of course. It should suggest methods, properties and instance variables that are appropriate for self.

This is a regression that was introduced recently when we changed the way the type of self is inferred. I've addressed the problem, and the fix will be in an upcoming version of Pylance.

[albireox]

Thanks for the super quick answer and fix!

[Ashesh3]

Having the same issue. Thanks for the fix! Hoping to be released soon.

[luliangce]

Environment data

• Pylance language server 2020.6.1
• macOs 10.15.5
• python 3.7.4 64-bit with poetry

appnope==0.1.0
asgiref==3.2.7
astroid==2.4.2
backcall==0.2.0
certifi==2020.4.5.2
chardet==3.0.4
coverage==5.1
decorator==4.4.2
Django==3.0.7
django-cors-headers==3.3.0
django-redis==4.12.1
ecdsa==0.15
gunicorn==20.0.4
idna==2.9
imbox==0.9.6
ipython==7.15.0
ipython-genutils==0.2.0
isort==4.3.21
jedi==0.17.0
lazy-object-proxy==1.4.3
mccabe==0.6.1
mysqlclient==1.4.6
parso==0.7.0
pexpect==4.8.0
pickleshare==0.7.5
prompt-toolkit==3.0.3
ptyprocess==0.6.0
pyasn1==0.4.8
Pygments==2.6.1
pylint==2.5.3
python-jose==3.1.0
pytz==2020.1
PyYAML==5.3.1
redis==3.5.3
requests==2.23.0
rope==0.17.0
rsa==4.1
six==1.15.0
sqlparse==0.3.1
toml==0.10.1
traitlets==4.3.3
typed-ast==1.4.1
urllib3==1.25.9
wcwidth==0.2.4
wrapt==1.12.1
yapf==0.29.0

my minimal reproduce:

first , start new django project and app, then edit {appName}/tests.py

from django.test import TestCase

class DemoTest(TestCase):
    def test_demo(self):
        self.assertEqual(1, 1)  # <-- issue here

[jakebailey]

This issue has been fixed in version 2020.7.0, which we've just released. You can find the changelog here: https://github.com/microsoft/pylance-release/blob/master/CHANGELOG.md#202070-9-july-2020