This commit addresses two potential issues related to issue #50:
1. Enhanced `OSError` Logging in `utils.py`:
The `printResponse` function in `src-python/utils.py` has been modified
to include more robust error handling around the `json.dumps()` call.
If an `OSError` (such as `[Errno 22] Invalid argument`) occurs during
JSON serialization, the function will now:
- Log the full traceback of the OSError.
- Log the specific problematic response dictionary that caused the error.
- Print a fallback JSON error message to stdout.
This change aims to help diagnose the root cause of the `OSError`
reported by you by capturing the exact data that triggers it.
2. Prevent `AttributeError` for `.close()` calls:
Added checks in `src-python/models/osc/osc.py` and
`src-python/models/websocket/websocket_server.py` to ensure that
objects are not `None` before their `.close()` or `.cancel()` methods
are called. This specifically addresses:
- `self.browser.zc.close()` and `self.browser.browser.cancel()` in `osc.py`.
- `self._loop.close()` in `websocket_server.py`.
These changes prevent potential `AttributeError: 'NoneType' object
has no attribute 'close'` errors if these objects are not fully
initialized before cleanup.
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