Fix ambigous msg when infura id isn't set during rpc code call (#1480)

* Add error check when infura id is unspecified for an on-chain code request

* Update eth-hash

mythril/mythril/mythril_disassembler.py

@@ -129,6 +129,11 @@ class MythrilDisassembler:
         if not re.match(r"0x[a-fA-F0-9]{40}", address):
             raise CriticalError("Invalid contract address. Expected format is '0x...'.")
 
+        if self.eth is None:
+            raise CriticalError(
+                "Please check whether the Infura key is set or use a different RPC method."
+            )
+
         try:
             code = self.eth.eth_getCode(address)
         except FileNotFoundError as e:

requirements.txt

@@ -6,7 +6,7 @@ eth_abi==1.3.0
 eth-account>=0.1.0a2,<=0.3.0
 ethereum>=2.3.2
 ethereum-input-decoder>=0.2.2
-eth-hash>=0.1.0
+eth-hash>=0.3.1
 eth-keyfile>=0.5.1
 eth-keys>=0.2.0b3,<0.3.0
 eth-rlp>=0.1.0

setup.py

@@ -36,7 +36,7 @@ REQUIRED = [
     "plyvel",
     "eth_abi==1.3.0",
     "eth-account>=0.1.0a2,<=0.3.0",
-    "eth-hash<0.3.0",
+    "eth-hash>=0.3.1",
     "eth-keyfile>=0.5.1",
     "eth-keys>=0.2.0b3,<0.3.0",
     "eth-rlp>=0.1.0",