fix asyncweb3

multicall/utils.py

@@ -56,6 +56,11 @@ def get_endpoint(w3: Web3) -> str:
 
 
 def get_async_w3(w3: Web3) -> Web3:
+    """Return an async version of the given Web3 instance.
+
+    Compatible only with web3py >= v7.0.0-beta.2 (2024-03-11),
+    which renamed middlewares to middleware.
+    """
     if w3 in async_w3s:
         return async_w3s[w3]
     if w3.eth.is_async and isinstance(w3.provider, AsyncBaseProvider):
@@ -78,11 +83,11 @@ def get_async_w3(w3: Web3) -> Web3:
 
     # In older web3 versions, AsyncHTTPProvider objects come
     # with incompatible synchronous middlewares by default.
-    middlewares = []
+    middleware = []
     if AsyncWeb3:
-        async_w3 = AsyncWeb3(provider=provider, middlewares=middlewares)
+        async_w3 = AsyncWeb3(provider=provider, middleware=middleware)
     else:
-        async_w3 = Web3(provider=provider, middlewares=middlewares)
+        async_w3 = Web3(provider=provider, middleware=middleware)
         async_w3.eth = AsyncEth(async_w3)
 
     async_w3s[w3] = async_w3

pyproject.toml

@@ -7,8 +7,7 @@ authors = ["banteg"]
 [tool.poetry.dependencies]
 python = ">=3.8,<4"
 cchecksum = ">=0.0.3,<1"
-# These web3.py versions have a busted async provider and cannot be used in any multithreaded applications
-web3 = ">=5.27,!=5.29.*,!=5.30.*,!=5.31.0,!=5.31.1,!=5.31.2"
+web3 = ">=7.0.0-beta.2"
 eth_retry = ">=0.1.8"
 
 [tool.poetry.group.dev.dependencies]