Fixed the negative value check in io._BytesIO.seek().

avassalotti · avassalotti · commit 8130f7c3c4a5 · 2008-05-08T01:39:38.000Z
diff --git a/Lib/io.py b/Lib/io.py
@@ -831,9 +831,9 @@ def seek(self, pos, whence=0):
         except AttributeError as err:
             raise TypeError("an integer is required") from err
         if whence == 0:
-            self._pos = max(0, pos)
             if pos < 0:
                 raise ValueError("negative seek position %r" % (pos,))
+            self._pos = max(0, pos)
         elif whence == 1:
             self._pos = max(0, self._pos + pos)
         elif whence == 2:
