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Use raise from to reserve stacktrace

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mhchia 2020-01-26 23:54:29 +08:00
parent b85bab1a09
commit ddfbf9ffc8
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1 changed files with 2 additions and 2 deletions
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4
libp2p/network/connection/raw_connection.py
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@ -18,7 +18,7 @@ class RawConnection(IRawConnection):
try:
await self.stream.write(data)
except IOException as error:
raise RawConnError(error)
raise RawConnError from error
async def read(self, n: int = None) -> bytes:
"""
@ -30,7 +30,7 @@ class RawConnection(IRawConnection):
try:
return await self.stream.read(n)
except IOException as error:
raise RawConnError(error)
raise RawConnError from error
async def close(self) -> None:
await self.stream.close()