Make subparser commands required in Python 3

kbuschme · kbuschme · commit 2a586bc0773e · 2018-02-15T13:53:00.000+01:00
In Python 2 subparser commands are required. From Python 3.3 on they are optional. This is considered a bug and will be reversed in Python 3.7. For details see issues: * 16308: https://bugs.python.org/issue16308 * 9235: https://bugs.python.org/issue9253 and pull request: * 3027: python/cpython#3027
diff --git a/src/main.py b/src/main.py
@@ -247,6 +247,7 @@ def main():
                                                         """,
                                             help="Valid commands.",
                                             dest="command",)
+    subParsers.required = True
 
     # Corpus command parser:
     corpusParser = subParsers.add_parser("corpus",
