Function _safe_getenv

Misc/mypy/_colorize.py:449–454

Exception-safe environment retrieval. See gh-128636.

(k: str, fallback: str | None = None)

def can_colorize(*, file: IO[str] | IO[bytes] | None = None) -> bool:

    def _safe_getenv(k: str, fallback: str | None = None) -> str | None:
        """Exception-safe environment retrieval. See gh-128636."""
        try:
            return os.environ.get(k, fallback)
        except Exception:
            return fallback

    if file is None:
        file = sys.stdout