Create a private helper to test completions

jedi/__main__.py

@@ -40,9 +40,23 @@ def _start_linter():
                 raise
 
 
+def _complete():
+    import jedi
+    import pdb
+
+    try:
+        for c in jedi.Script(sys.argv[2]).complete():
+            c.docstring()
+            c.type
+    except Exception:
+        pdb.post_mortem()
+
+
 if len(sys.argv) == 2 and sys.argv[1] == 'repl':
     # don't want to use __main__ only for repl yet, maybe we want to use it for
     # something else. So just use the keyword ``repl`` for now.
     print(join(dirname(abspath(__file__)), 'api', 'replstartup.py'))
 elif len(sys.argv) > 1 and sys.argv[1] == 'linter':
     _start_linter()
+elif len(sys.argv) > 1 and sys.argv[1] == '_complete':
+    _complete()