[IMPR] use ShowingListOption with pagegenerators.py

Change-Id: I3c6019845569819b275532a958bd4f7b33f4652d
---
M pywikibot/pagegenerators.py
1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/pywikibot/pagegenerators.py b/pywikibot/pagegenerators.py
index 25db7bb..638bb7b 100644
--- a/pywikibot/pagegenerators.py
+++ b/pywikibot/pagegenerators.py
@@ -14,7 +14,7 @@
 &params;
 """
 #
-# (C) Pywikibot team, 2008-2019
+# (C) Pywikibot team, 2008-2020
 #
 # Distributed under the terms of the MIT license.
 #
@@ -48,7 +48,7 @@
 )
 
 from pywikibot import date, config, i18n, xmlreader
-from pywikibot.bot import ListOption
+from pywikibot.bot import ShowingListOption
 from pywikibot.comms import http
 from pywikibot.exceptions import (
     ArgumentDeprecationWarning,
@@ -804,12 +804,8 @@
             pnames = self.site.get_property_names()
             # also use the default by <enter> key
             if value in '?' or value not in pnames:
-                for i, item in enumerate(pnames, start=1):
-                    pywikibot.output(
-                        '{0:{1}}: {2}'.format(i, len(str(len(pnames))),
-                                              item))
                 prefix, value = pywikibot.input_choice(
-                    question, ListOption(self.site.get_property_names()))
+                    question, ShowingListOption(pnames))
         return page_with_property_generator(value, site=self.site)
 
     def _handle_usercontribs(self, value):

