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fix: fix message #193

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Merged
efiop merged 2 commits into from
Jan 23, 2026
Merged

fix: fix message #193

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428d6a0
fix: fix message
efiop Jan 23, 2026
2410d30
Improve error message for unavailable Python version
efiop Jan 23, 2026
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6 changes: 4 additions & 2 deletions src/isolate/backends/virtualenv.py
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Original file line number Diff line number Diff line change
Expand Up @@ -147,8 +147,10 @@ def _decide_python(self) -> str:
_get_pyenv_executable()
except Exception:
raise EnvironmentCreationError(
f"Your local Python version {self.python_version} is not available in the app environment."
"Please either downgrade your local version of Python or use a Docker image with Python {self.python_version}."
f"Your local Python version {self.python_version} is not "
"available in the app environment. "
"Please either downgrade your local version of Python or use a Docker "
f"image with Python {self.python_version}."
) from None
else:
return self._install_python_through_pyenv()
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6 changes: 5 additions & 1 deletion tests/test_backends.py
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Original file line number Diff line number Diff line change
Expand Up @@ -362,7 +362,11 @@ def test_invalid_python_version_raises(self, tmp_path, monkeypatch):
environment = self.get_environment(tmp_path, {"python_version": "9.9.9"})
with pytest.raises(
EnvironmentCreationError,
match="Python 9.9.9 is not available",
match=(
"Your local Python version 9.9.9 is not available in the app "
"environment. Please either downgrade your local version of "
"Python or use a Docker image with Python 9.9.9"
),
):
environment.create()

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