Stop hiding cause of last exception #224
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| def __str__(self) -> str: | ||
| return str(self.message) | ||
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Since message is passed in super.__init__(message) and we removed the custom __str__ implementation below, this is already the default implementation.
In Python, __str__ isn't helpful. If you need to know the class name, then __repr__ is required, and our __repr__ implementation contains all information about the current exception, including errors.
>>> e = ValueError("abandon ship!")
>>> str(e)
'abandon ship!'
>>> repr(e)
"ValueError('abandon ship!')"| def __str__(self) -> str: | ||
| if self.errors: | ||
| return f"Connection error caused by: {self.errors[0].__class__.__name__}({self.errors[0]})" | ||
| return "Connection error" | ||
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This __str__ implementation tries to be helpful but hides the current exception to focus on errors, which are past attempts. This comment applies to the other subclasses as well.
| def exception_to_dict(exc: TransportError) -> dict: | ||
| return { | ||
| "type": exc.__class__.__name__, | ||
| "message": exc.message, | ||
| "errors": [exception_to_dict(e) for e in exc.errors], | ||
| } |
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This is all the information exposed by __repr__, but in a more structured way which is nicer to test for.
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Closes #223
While this does not change any types, it does change the values returned by
str(e)andrepr(e), so I would like to include this in 9.0 only, without backporting to 8.x.