Merge branch 'master' into f-string_clean

# Conflicts:
#	libp2p/network/connection/raw_connection.py

libp2p/network/connection/raw_connection.py

@@ -26,10 +26,11 @@ class RawConnection(IRawConnection):
 
     async def write(self, data: bytes) -> None:
         """Raise `RawConnError` if the underlying connection breaks."""
-        try:
+        # Detect if underlying transport is closing before write data to it
+        # ref: https://github.com/ethereum/trinity/pull/614
+        if self.writer.transport.is_closing():
+            raise RawConnError("Transport is closing")
         self.writer.write(data)
-        except ConnectionResetError as error:
-            raise RawConnError() from error
         # Reference: https://github.com/ethereum/lahja/blob/93610b2eb46969ff1797e0748c7ac2595e130aef/lahja/asyncio/endpoint.py#L99-L102  # noqa: E501
         # Use a lock to serialize drain() calls. Circumvents this bug:
         # https://bugs.python.org/issue29930
@@ -52,7 +53,13 @@ class RawConnection(IRawConnection):
             raise RawConnError() from error
 
     async def close(self) -> None:
+        if self.writer.transport.is_closing():
+            return
         self.writer.close()
         if sys.version_info < (3, 7):
             return
+        try:
             await self.writer.wait_closed()
+        # In case the connection is already reset.
+        except ConnectionResetError:
+            return

setup.py

@@ -66,7 +66,7 @@ install_requires = [
     "pycryptodome>=3.9.2,<4.0.0",
     "base58>=1.0.3,<2.0.0",
     "pymultihash>=0.8.2",
-    "multiaddr>=0.0.8,<0.1.0",
+    "multiaddr>=0.0.9,<0.1.0",
     "rpcudp>=3.0.0,<4.0.0",
     "lru-dict>=1.1.6",
     "protobuf>=3.10.0,<4.0.0",