Looks like a SWIG bug, creating an extra variable that it doesn't use
bindings/python/gnucash_core.c: In function ‘_wrap_xaccAccountGetReconcileLastDate’:
bindings/python/gnucash_core.c:10096:10: warning: unused variable ‘secs20’ [-Wunused-variable]
10096 | time64 secs20 ;
| ^~~~~~
bindings/python/gnucash_core.c: In function ‘_wrap_xaccAccountGetReconcilePostponeDate’:
bindings/python/gnucash_core.c:10298:10: warning: unused variable ‘secs20’ [-Wunused-variable]
10298 | time64 secs20 ;
| ^~~~~~
bindings/python/gnucash_core.c: In function ‘_wrap_qof_query_date_predicate_get_date’:
bindings/python/gnucash_core.c:20237:10: warning: unused variable ‘secs20’ [-Wunused-variable]
20237 | time64 secs20 ;
| ^~~~~~
Initialisation of some business objects has been done with
datetime.date.today() and it is also mentioned as a possibility
in the source doc. So leave it possible.