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Add helpful ImportError messages for optional dependencies

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When optional dependencies are missing, raise ImportError with
installation
instructions pointing to the relevant extras group (e.g. `[messaging]`,
`[cli]`, `[mcp]`, etc.) instead of letting the import fail silently.
This commit is contained in:
alt-glitch 2026-04-23 04:46:01 +05:30
parent 847ffca715
commit 850973295e
9 changed files with 81 additions and 14 deletions
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8
tui_gateway/server.py
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@ -192,7 +192,13 @@ def _estimate_image_tokens(width: int, height: int) -> int:
def _image_meta(path: Path) -> dict:
from PIL import Image
try:
from PIL import Image
except ImportError:
raise ImportError(
"Pillow is required for image metadata extraction. "
"Install with: pip install hermes-agent[cli]"
) from None
meta = {"name": path.name}
try: