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"""
Exceptions that can be thrown by hyperframe.
"""
from __future__ import annotations
class HyperframeError(Exception):
"""
The base class for all exceptions for the hyperframe module.
.. versionadded:: 6.0.0
"""
class UnknownFrameError(HyperframeError):
"""
A frame of unknown type was received.
.. versionchanged:: 6.0.0
Changed base class from `ValueError` to :class:`HyperframeError`
"""
def __init__(self, frame_type: int, length: int) -> None:
#: The type byte of the unknown frame that was received.
self.frame_type = frame_type
#: The length of the data portion of the unknown frame.
self.length = length
def __str__(self) -> str:
return (
f"UnknownFrameError: Unknown frame type 0x{self.frame_type:X} received, length {self.length} bytes"
)
class InvalidPaddingError(HyperframeError):
"""
A frame with invalid padding was received.
.. versionchanged:: 6.0.0
Changed base class from `ValueError` to :class:`HyperframeError`
"""
class InvalidFrameError(HyperframeError):
"""
Parsing a frame failed because the data was not laid out appropriately.
.. versionadded:: 3.0.2
.. versionchanged:: 6.0.0
Changed base class from `ValueError` to :class:`HyperframeError`
"""
class InvalidDataError(HyperframeError):
"""
Content or data of a frame was is invalid or violates the specification.
.. versionadded:: 6.0.0
"""
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