fix: add detail to exc only if brownie is connected

dank_mids/helpers.py

@@ -24,8 +24,12 @@ def setup_dank_w3(async_w3: Web3) -> Web3:
         async_w3.middleware_onion.add(geth_poa_middleware)
         return async_w3
     except ValueError as e:
-        if str(e) == "You can't add the same un-named instance twice":
-            raise ValueError("You can't add the same un-named instance twice. If you're calling 'setup_dank_w3' manually you may be better served by importing the pre-configured dank_web3 object from dank_mids.helpers.")
+        try:
+            from brownie import network
+        except ImportError:
+            raise e
+        if str(e) == "You can't add the same un-named instance twice" and network.is_connected():
+            raise ValueError("You can't add the same un-named instance twice. If you're using brownie and you're calling 'setup_dank_w3' manually you may be better served by importing the pre-configured dank_web3 object from dank_mids.helpers.")
         raise e
 
 def setup_dank_w3_from_sync(sync_w3: Web3) -> Web3: