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Change default to use ".venv" under project root #1001

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cpprust
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@cpprust cpprust commented Jan 17, 2025

fixes #365
If project root is found, and ".venv" is found under project root, use that as default.

Project root is found if "pyrightconfig.json" or "pyproject.toml" is found. ".venv" can change to another name by change the '[tool.pyright] venv="venv_name"' in "pyproject.toml". But note that uv only support ".venv" so better stick with that.

fixes DetachHead#365
If project root is found, and ".venv" is found under project root,
use that venv as default.

Project root is found if "pyrightconfig.json" or "pyproject.toml" is
found. ".venv" can change to another name by change the
'[tool.pyright] venv="venv_name"' in "pyproject.toml".
But note that `uv` only support ".venv" so better stick with that.
@DetachHead
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thanks for the contribution. i think this sounds like a good idea, however i want to hold off merging it until #570 is resolved because otherwise there'll be no workaround

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Diff from mypy_primer, showing the effect of this PR on open source code:

sympy (https://github.com/sympy/sympy)
-     Type of "sol1" is "Equality | Unknown | Relational | Unequality | Integer" (reportUnknownVariableType)
+     Type of "sol1" is "Equality | Unknown" (reportUnknownVariableType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/tests/test_subscheck.py:37:34 - error: Cannot access attribute "lhs" for class "Integer"
-     Attribute "lhs" is unknown (reportAttributeAccessIssue)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/tests/test_subscheck.py:38:34 - error: Cannot access attribute "lhs" for class "Integer"
-     Attribute "lhs" is unknown (reportAttributeAccessIssue)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/tests/test_subscheck.py:39:34 - error: Cannot access attribute "lhs" for class "Integer"
-     Attribute "lhs" is unknown (reportAttributeAccessIssue)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/tests/test_subscheck.py:40:34 - error: Cannot access attribute "lhs" for class "Integer"
-     Attribute "lhs" is unknown (reportAttributeAccessIssue)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/tests/test_subscheck.py:41:34 - error: Cannot access attribute "lhs" for class "Integer"
-     Attribute "lhs" is unknown (reportAttributeAccessIssue)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/tests/test_subscheck.py:42:34 - error: Cannot access attribute "lhs" for class "Integer"
-     Attribute "lhs" is unknown (reportAttributeAccessIssue)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/tests/test_subscheck.py:43:34 - error: Cannot access attribute "lhs" for class "Integer"
-     Attribute "lhs" is unknown (reportAttributeAccessIssue)
-     Type of "sol3" is "Equality | Unknown | Relational | Unequality | Integer" (reportUnknownVariableType)
+     Type of "sol3" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "eqn" is "Equality | Unknown | Relational | Unequality | Integer" (reportUnknownVariableType)
+     Type of "eqn" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "sol" is "Equality | Unknown | Relational | Unequality | Integer" (reportUnknownVariableType)
+     Type of "sol" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "sol" is "Equality | Unknown | Relational | Unequality | Integer" (reportUnknownVariableType)
+     Type of "sol" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "eqs" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eqs" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer, Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality | Integer]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)

... (truncated 3441 lines) ...

black (https://github.com/psf/black): 5.96x slower (2.2s -> 12.8s in a single noisy sample)

spack (https://github.com/spack/spack)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtlink3/package.py:16:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtlink3/package.py:17:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtlink3/package.py:16:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtlink3/package.py:17:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtrun1/package.py:16:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtrun1/package.py:17:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtrun1/package.py:16:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtrun1/package.py:17:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtrun3/package.py:16:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtrun3/package.py:16:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dttop/package.py:16:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dttop/package.py:17:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dttop/package.py:18:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dttop/package.py:16:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dttop/package.py:17:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dttop/package.py:18:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtuse/package.py:16:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dtuse/package.py:16:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dyninst/package.py:28:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dyninst/package.py:29:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dyninst/package.py:28:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/dyninst/package.py:29:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/ecp-viz-sdk/package.py:17:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/ecp-viz-sdk/package.py:17:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/extension2/package.py:18:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/extension2/package.py:18:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-buildable-with-variant/package.py:17:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-buildable-with-variant/package.py:17:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-openssl/package.py:13:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-openssl/package.py:13:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-perl/package.py:13:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-perl/package.py:13:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-python/package.py:13:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-python/package.py:13:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-python/package.py:14:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/builtin.mock/packages/external-common-python/package.py:14:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)

... (truncated 92 lines) ...

comtypes (https://github.com/enthought/comtypes): 277.35x slower (0.1s -> 22.1s in a single noisy sample)

@DetachHead
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thinking about this more, i think we should avoid the venv and venvPath settings entirely in favor of python.pythonPath. see #365 (comment)

i still think we should detect .venv in the project root though, but the logic should probably be on the pythonPath setting instead of venv and venvPath settings

@DetachHead
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closing in favor of #1006

@DetachHead DetachHead closed this Jan 24, 2025
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import resolution for generic virtual environments
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