[IMPR] Show the exception message in async mode

Bug: T203448
Change-Id: I00a8c23f72b10bf4f061d5d8b2ec06d534c2bff8
---
M pywikibot/page.py
1 file changed, 3 insertions(+), 0 deletions(-)

diff --git a/pywikibot/page.py b/pywikibot/page.py
index 611320c..0771788 100644
--- a/pywikibot/page.py
+++ b/pywikibot/page.py
@@ -111,6 +111,9 @@
         except pywikibot.Error as edit_err:
             err = edit_err  # edit_err will be deleted in the end of the scope
             link = self.title(as_link=True)
+            if do_async:
+                pywikibot.error('page {} not saved due to {}\n'
+                                .format(link, err))
             pywikibot.log('Error saving page %s (%s)\n' % (link, err),
                           exc_info=True)
             if not callback and not do_async:

