from .h2 import H2Protocol
File "/usr/local/lib/python3.7/site-packages/hypercorn/protocol/h2.py", line 4, in <module>
import h2.connection
File "/usr/local/lib/python3.7/site-packages/h2/connection.py", line 33, in <module>
from .frame_buffer import FrameBuffer
File "/usr/local/lib/python3.7/site-packages/h2/frame_buffer.py", line 9, in <module>
from hyperframe.exceptions import InvalidFrameError, InvalidDataError
ImportError: cannot import name 'InvalidDataError' from 'hyperframe.exceptions' (/usr/local/lib/python3.7/site-packages/hyperframe/exceptions.py)