fix: check that type of qty passed to make_trade is int (improved error)

ErikBjare · ErikBjare · commit 05f69768dec8 · 2022-10-18T14:21:57.000+02:00
diff --git a/uniswap/uniswap.py b/uniswap/uniswap.py
@@ -450,6 +450,9 @@ def make_trade(
         fee_on_transfer: bool = False,
     ) -> HexBytes:
         """Make a trade by defining the qty of the input token."""
+        if not isinstance(qty, int):
+            raise TypeError("swapped quantity must be an integer")
+
         if fee is None:
             fee = 3000
             if self.version == 3:
