[SageTerminalApp] ERROR | Failed to create history session in /home/simon/.sage/ipython-5.0.0/profile_default/history.sqlite. History will not be saved.Traceback (most recent call last):
File "/home/simon/sage/local/lib/python3.7/site-packages/IPython/core/history.py", line 549, in __init__
self.new_session()
File "</home/simon/sage/local/lib/python3.7/site-packages/decorator.py:decorator-gen-22>", line 2, in new_session
File "/home/simon/sage/local/lib/python3.7/site-packages/IPython/core/history.py", line 60, in needs_sqlite
return f(self, *a, **kw)
File "/home/simon/sage/local/lib/python3.7/site-packages/IPython/core/history.py", line 575, in new_session
NULL, "") """, (datetime.datetime.now(),))
sqlite3.OperationalError: database is locked