[cleanup] deprecate sysop parameter with FutureWarning

Change-Id: Ie9a3f46cfab8cac4f84187df871c46e49d3484a6
---
M pywikibot/site/__init__.py
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pywikibot/site/__init__.py b/pywikibot/site/__init__.py
index 6dd0947..127e828 100644
--- a/pywikibot/site/__init__.py
+++ b/pywikibot/site/__init__.py
@@ -260,7 +260,7 @@
         auth_token = get_authentication(self.base_url(''))
         return auth_token is not None and len(auth_token) == 4
 
-    @deprecated_args(sysop=None)
+    @deprecated_args(sysop=True)
     def login(self, sysop=None, autocreate=False):
         """
         Log the user in if not already logged in.
@@ -273,6 +273,11 @@
             by the site.
         @see: U{https://www.mediawiki.org/wiki/API:Login}
         """
+        if sysop is not None:
+            issue_deprecation_warning("'sysop' parameter",
+                                      warning_class=FutureWarning,
+                                      since='20201230')
+
         # TODO: this should include an assert that loginstatus
         #       is not already IN_PROGRESS, however the
         #       login status may be left 'IN_PROGRESS' because

