fix string handling so it works with bytes or str object

src/ezfio-head.py

@@ -102,7 +102,7 @@ def get_conv(type):
       else:
         raise TypeError
   elif type == "ch":
-    conv = lambda x: x.decode('utf-8').strip()
+    conv = lambda x: x.decode('utf-8').strip() if isinstance(x,bytes) else x.strip()
   else:
     raise TypeError
   return conv

version

@@ -1 +1 @@
-VERSION=2.0.2
+VERSION=2.0.3