refactor: use contextlib.suppress instead of except pass (#5840)

* refactor: use contextlib.suppress instead of except pass

* revert: get-poetry.py changes

* fix: import contextlib rather than only suppress

src/poetry/inspection/info.py

 from __future__ import annotations
 
+import contextlib
 import functools
 import glob
 import logging
@@ -556,12 +557,10 @@ def get_pep517_metadata(path: Path) -> PackageInfo:
     :param path: Path to package source to build and read metadata for.
     """
     info = None
-    try:
+    with contextlib.suppress(PackageInfoError):
         info = PackageInfo.from_setup_files(path)
         if all([info.version, info.name, info.requires_dist]):
             return info
-    except PackageInfoError:
-        pass
 
     with ephemeral_environment(
         flags={"no-pip": False, "no-setuptools": False, "no-wheel": False}

src/poetry/utils/env.py

 from __future__ import annotations
 
 import base64
+import contextlib
 import hashlib
 import itertools
 import json
@@ -13,7 +14,6 @@ import sys
 import sysconfig
 import warnings
 
-from contextlib import contextmanager
 from copy import deepcopy
 from pathlib import Path
 from subprocess import CalledProcessError
@@ -279,11 +279,9 @@ class SitePackages:
         candidates = self._candidates if not writable_only else self.writable_candidates
         if path.is_absolute():
             for candidate in candidates:
-                try:
+                with contextlib.suppress(ValueError):
                     path.relative_to(candidate)
                     return [path]
-                except ValueError:
-                    pass
             site_type = "writable " if writable_only else ""
             raise ValueError(
                 f"{path} is not relative to any discovered {site_type}sites"
@@ -1334,11 +1332,9 @@ class Env:
 
     def is_path_relative_to_lib(self, path: Path) -> bool:
         for lib_path in [self.purelib, self.platlib]:
-            try:
+            with contextlib.suppress(ValueError):
                 path.relative_to(lib_path)
                 return True
-            except ValueError:
-                pass
 
         return False
 
@@ -1737,7 +1733,7 @@ class VirtualEnv(Env):
         kwargs["env"] = self.get_temp_environ(environ=kwargs.get("env"))
         return super().execute(bin, *args, **kwargs)
 
-    @contextmanager
+    @contextlib.contextmanager
     def temp_environ(self) -> Iterator[None]:
         environ = dict(os.environ)
         try:
@@ -1871,7 +1867,7 @@ class NullEnv(SystemEnv):
         return bin
 
 
-@contextmanager
+@contextlib.contextmanager
 def ephemeral_environment(
     executable: str | Path | None = None,
     flags: dict[str, bool] | None = None,
@@ -1887,7 +1883,7 @@ def ephemeral_environment(
         yield VirtualEnv(venv_dir, venv_dir)
 
 
-@contextmanager
+@contextlib.contextmanager
 def build_environment(
     poetry: CorePoetry, env: Env | None = None, io: IO | None = None
 ) -> Iterator[Env]:

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

 from __future__ import annotations
 
+import contextlib
 import json
 import os
 import os.path
@@ -204,12 +205,10 @@ def read_extras():
         extra_req_file_path = os.path.join(
             extra_requirements_dir, extra_requirements_filename
         )
-        try:
+        with contextlib.suppress(RuntimeError):
             extras[filename_match.group(1)] = read_file(
                 extra_req_file_path
             ).splitlines()
-        except RuntimeError:
-            pass
     return extras
 
 

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

@@ -56,6 +56,7 @@ int main(void) {
 """
 
 
+import contextlib
 import os.path
 import platform
 import sys
@@ -81,13 +82,11 @@ if "setuptools.extension" in sys.modules:
     sys.modules["distutils.command.build_ext"].Extension = _Extension
 
 with_cython = False
-try:
+with contextlib.suppress(ImportError):
     from Cython.Distutils import build_ext as _build_ext
     from Cython.Distutils.extension import Extension as _Extension
 
     with_cython = True
-except ImportError:
-    pass
 
 try:
     from wheel.bdist_wheel import bdist_wheel