Have run(uv_pip_list...) return only stdout

.bumpversion.toml

@@ -1,6 +1,6 @@
 [tool.bumpversion]
   allow_dirty = true
-  current_version = "0.184.2"
+  current_version = "0.184.3"
 
   [[tool.bumpversion.files]]
     filename = "pyproject.toml"

pyproject.toml

@@ -21,7 +21,7 @@
     "coloredlogs>=15.0.1",
     "coverage-conditional-plugin>=0.9.0",
     "dycw-pytest-only>=2.1.1",
-    "dycw-utilities[test]>=0.184.1",
+    "dycw-utilities[test]>=0.184.2",
     "pyright>=1.1.408",
     "pytest-cov>=7.0.0",
     "pytest-timeout>=2.4.0",
@@ -116,7 +116,7 @@
   name = "dycw-utilities"
   readme = "README.md"
   requires-python = ">= 3.12"
-  version = "0.184.2"
+  version = "0.184.3"
 
   [project.entry-points.pytest11]
     pytest-randomly = "utilities.pytest_plugins.pytest_randomly"

src/tests/test_subprocess.py

@@ -35,8 +35,10 @@
     _rsync_many_prepare,
     _ssh_is_strict_checking_error,
     _uv_pip_list_assemble_output,
-    _UvPipListBaseError,
-    _UvPipListOutdatedError,
+    _uv_pip_list_loads,
+    _UvPipListBaseVersionError,
+    _UvPipListJsonError,
+    _UvPipListOutdatedVersionError,
     _UvPipListOutput,
     append_text,
     apt_install_cmd,
@@ -1776,6 +1778,24 @@ def test_main(self) -> None:
         assert is_sequence_of(result, _UvPipListOutput)
 
 
+class TestUvPipListLoadsOutput:
+    def test_main(self) -> None:
+        text = strip_and_dedent("""
+            [{"name":"name","version":"0.0.1"}]
+        """)
+        result = _uv_pip_list_loads(text)
+        expected = [{"name": "name", "version": "0.0.1"}]
+        assert result == expected
+
+    def test_error(self) -> None:
+        text = strip_and_dedent("""
+            [{"name":"name","version":"0.0.1"}]
+            # warning: The package `name` requires `dep>=1.2.3`, but `1.2.2` is installed
+        """)
+        with raises(_UvPipListJsonError, match=r"Unable to parse JSON; got '.*'"):
+            _ = _uv_pip_list_loads(text)
+
+
 class TestUvPipListAssembleOutput:
     def test_main(self) -> None:
         dict_ = {"name": "name", "version": "0.0.1"}
@@ -1819,13 +1839,17 @@ def test_outdated(self) -> None:
     def test_error_base(self) -> None:
         dict_ = {"name": "name", "version": "invalid"}
         outdated = []
-        with raises(_UvPipListBaseError, match=r"Unable to parse version; got .*"):
+        with raises(
+            _UvPipListBaseVersionError, match=r"Unable to parse version; got .*"
+        ):
             _ = _uv_pip_list_assemble_output(dict_, outdated)
 
     def test_error_outdated(self) -> None:
         dict_ = {"name": "name", "version": "0.0.1"}
         outdated = [{"name": "name", "latest_version": "invalid"}]
-        with raises(_UvPipListOutdatedError, match=r"Unable to parse version; got .*"):
+        with raises(
+            _UvPipListOutdatedVersionError, match=r"Unable to parse version; got .*"
+        ):
             _ = _uv_pip_list_assemble_output(dict_, outdated)
 
 

src/utilities/subprocess.py

@@ -6,6 +6,7 @@
 from dataclasses import dataclass
 from io import StringIO
 from itertools import chain, repeat
+from json import JSONDecodeError
 from pathlib import Path
 from re import MULTILINE, escape, search
 from shlex import join
@@ -1784,22 +1785,29 @@ def uv_pip_list(
         for outdated in [False, True]
     ]
     text_base, text_outdated = [
-        run(*cmds, return_=True) for cmds in [cmds_base, cmds_outdated]
-    ]
-    dicts_base, dicts_outdated = [
-        json.loads(text) for text in [text_base, text_outdated]
+        run(*cmds, return_stdout=True) for cmds in [cmds_base, cmds_outdated]
     ]
+    dicts_base, dicts_outdated = list(
+        map(_uv_pip_list_loads, [text_base, text_outdated])
+    )
     return [_uv_pip_list_assemble_output(d, dicts_outdated) for d in dicts_base]
 
 
+def _uv_pip_list_loads(text: str, /) -> list[StrMapping]:
+    try:
+        return json.loads(text)
+    except JSONDecodeError:
+        raise _UvPipListJsonError(text=text) from None
+
+
 def _uv_pip_list_assemble_output(
     dict_: StrMapping, outdated: Iterable[StrMapping], /
 ) -> _UvPipListOutput:
     name = dict_["name"]
     try:
         version = parse_version_2_or_3(dict_["version"])
     except ParseVersion2Or3Error:
-        raise _UvPipListBaseError(data=dict_) from None
+        raise _UvPipListBaseVersionError(data=dict_) from None
     try:
         location = Path(dict_["editable_project_location"])
     except KeyError:
@@ -1812,7 +1820,7 @@ def _uv_pip_list_assemble_output(
         try:
             latest_version = parse_version_2_or_3(outdated_i["latest_version"])
         except ParseVersion2Or3Error:
-            raise _UvPipListOutdatedError(data=outdated_i) from None
+            raise _UvPipListOutdatedVersionError(data=outdated_i) from None
         latest_filetype = outdated_i["latest_filetype"]
     return _UvPipListOutput(
         name=dict_["name"],
@@ -1824,7 +1832,20 @@ def _uv_pip_list_assemble_output(
 
 
 @dataclass(kw_only=True, slots=True)
-class UvPipListError(Exception):
+class UvPipListError(Exception): ...
+
+
+@dataclass(kw_only=True, slots=True)
+class _UvPipListJsonError(UvPipListError):
+    text: str
+
+    @override
+    def __str__(self) -> str:
+        return f"Unable to parse JSON; got {self.text!r}"
+
+
+@dataclass(kw_only=True, slots=True)
+class _UvPipListBaseVersionError(UvPipListError):
     data: StrMapping
 
     @override
@@ -1833,10 +1854,12 @@ def __str__(self) -> str:
 
 
 @dataclass(kw_only=True, slots=True)
-class _UvPipListBaseError(UvPipListError): ...
-
+class _UvPipListOutdatedVersionError(UvPipListError):
+    data: StrMapping
 
-class _UvPipListOutdatedError(UvPipListError): ...
+    @override
+    def __str__(self) -> str:
+        return f"Unable to parse version; got {self.data}"
 
 
 def uv_pip_list_cmd(