Fixed a small bug in the repl (undefined variable).

Author: jonathanslenders

prompt_toolkit/contrib/repl.py

@@ -116,9 +116,9 @@ def _execute(self, line):
  locals = self.get_locals()
  locals['_'] = locals['_%i' % settings.current_statement_index] = result
 
- out_mark = 'Out[%i]: ' % settings.current_statement_index
-
  if result is not None:
+ out_mark = 'Out[%i]: ' % settings.current_statement_index
+
  try:
  result_str = '%r\n' % (result, )
  except UnicodeDecodeError:
@@ -128,11 +128,11 @@ def _execute(self, line):
  # characters. Decode as utf-8 in that case.
  result_str = '%s\n' % repr(result).decode('utf-8')
 
- # align every line to the first one
- line_sep = '\n' + ' ' * len(out_mark)
- out_string = out_mark + line_sep.join(result_str.splitlines())
+  # align every line to the first one
+  line_sep = '\n' + ' ' * len(out_mark)
+  out_string = out_mark + line_sep.join(result_str.splitlines())
 
- self.cli.stdout.write(out_string)
+  self.cli.stdout.write(out_string)
  # If not a valid `eval` expression, run using `exec` instead.
  except SyntaxError:
  exec_(line, self.get_globals(), self.get_locals())