Remove whitespaces from Python escapes
diff --git a/plyxproto/logicparser.py b/plyxproto/logicparser.py
index 0117113..7f67459 100644
--- a/plyxproto/logicparser.py
+++ b/plyxproto/logicparser.py
@@ -84,7 +84,7 @@
 
     def p_term_python(self, p):
         '''term : ESCAPE'''
-        p[0] = {'python': p[1].lstrip('{').rstrip('}')}
+        p[0] = {'python': p[1].lstrip('{ ').rstrip(' }')}
 
     def p_fole_group(self, p):
         "fole : LPAREN fole RPAREN"