by changing jupyter_core\application.py line 156 from
with open(config_file, mode='w') as f:
f.write(config_text)
to
with open(config_file, mode='w', encoding='utf-8') as f:
f.write(config_text)
the error disappeared
by changing jupyter_core\application.py line 156 from
with open(config_file, mode='w') as f:
f.write(config_text)
to
with open(config_file, mode='w', encoding='utf-8') as f:
f.write(config_text)
the error disappeared