diff --git a/contributors.txt b/contributors.txt
index 22d551a50..54ff875dc 100644
--- a/contributors.txt
+++ b/contributors.txt
@@ -214,3 +214,4 @@ YYYY/MM/DD, github id, Full name, email
 2018/12/23, youkaichao, Kaichao You, youkaichao@gmail.com
 2019/02/06, ralucado, Cristina Raluca Vijulie, ralucris.v[at]gmail[dot]com
 2019/03/13, base698, Justin Thomas, justin.thomas1@gmail.com
+2019/03/18, carlodri, Carlo Dri, carlo.dri@gmail.com
diff --git a/doc/python-target.md b/doc/python-target.md
index e3bd883f2..7ed73c281 100644
--- a/doc/python-target.md
+++ b/doc/python-target.md
@@ -50,8 +50,8 @@ from MyGrammarLexer import MyGrammarLexer
 from MyGrammarParser import MyGrammarParser
  
 def main(argv):
-    input = FileStream(argv[1])
-    lexer = MyGrammarLexer(input)
+    input_stream = FileStream(argv[1])
+    lexer = MyGrammarLexer(input_stream)
     stream = CommonTokenStream(lexer)
     parser = MyGrammarParser(stream)
     tree = parser.startRule()