Add try block to import readline (#21)

* Add try block to import readline

Add a try block to import readline to improve windows compatibility

Author: stuart-thomas-zoopla

shakespearelang/_repl.py

@@ -3,7 +3,11 @@
 from ._utils import normalize_name
 from tatsu.exceptions import FailedParse
 
-import readline
+try:
+    import readline
+except ModuleNotFoundError:
+    print("readline module is not supported in Windows, continuing without it.")
+
 import sys