Adding Pycln QA tool to the pre-commit config (#5234)

.pre-commit-config.yaml

@@ -52,6 +52,12 @@ repos:
         args: [--py37-plus]
         exclude: ^(install|get)-poetry.py$
 
+  - repo: https://github.com/hadialqattan/pycln
+    rev: v1.3.2
+    hooks:
+      - id: pycln
+        args: [--all]
+
   - repo: https://github.com/pycqa/isort
     rev: 5.10.1
     hooks:

src/poetry/installation/__init__.py

 from __future__ import annotations
 
 from poetry.installation.installer import Installer
+
+
+__all__ = ["Installer"]

src/poetry/installation/operations/__init__.py

 from __future__ import annotations
 
-from typing import Union
-
 from poetry.installation.operations.install import Install
 from poetry.installation.operations.uninstall import Uninstall
 from poetry.installation.operations.update import Update

src/poetry/masonry/builders/__init__.py

 from __future__ import annotations
 
 from poetry.masonry.builders.editable import EditableBuilder
+
+
+__all__ = ["EditableBuilder"]

src/poetry/mixology/solutions/providers/__init__.py

@@ -3,3 +3,6 @@ from __future__ import annotations
 from poetry.mixology.solutions.providers.python_requirement_solution_provider import (
     PythonRequirementSolutionProvider,
 )
+
+
+__all__ = ["PythonRequirementSolutionProvider"]

src/poetry/mixology/solutions/solutions/__init__.py

@@ -3,3 +3,6 @@ from __future__ import annotations
 from poetry.mixology.solutions.solutions.python_requirement_solution import (
     PythonRequirementSolution,
 )
+
+
+__all__ = ["PythonRequirementSolution"]

src/poetry/publishing/__init__.py

 from __future__ import annotations
 
 from poetry.publishing.publisher import Publisher
+
+
+__all__ = ["Publisher"]

src/poetry/puzzle/__init__.py

 from __future__ import annotations
 
 from poetry.puzzle.solver import Solver
+
+
+__all__ = ["Solver"]

tests/compat.py

@@ -2,12 +2,12 @@ from __future__ import annotations
 
 
 try:
-    import zipp
+    import zipp  # nopycln: import
 except ImportError:
     import zipfile as zipp  # noqa: F401, TC002
 
 try:
-    from typing import Protocol
+    from typing import Protocol  # nopycln: import
 except ImportError:
     from typing_extensions import Protocol  # noqa: F401, TC002
 

tests/utils/fixtures/setups/pendulum/setup.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from distutils.core import setup
 
-from build import *
+from build import *  # nopycln: import
 
 
 packages = [