What does the [ File " " , Line 1, in < module > ] error mean?
I entered:
e, s, t= var('e s t')
and Sage returned
File " " , Line 1, in <module>
what does it mean and how can I correct it?
Welcome to Sage and to Ask Sage!
I can not reproduce your problem, perhaps did you type a special character instead of a space somewhere. Try to retype everything, and do not put any space before your command.
What operating system? What version of Sage? How was it installed? How are you using it: terminal, Jupyter notebook, other? What is the complete error message?
thank you @slelievre and @tmonteil . I use it in Oracle VM VirtualBox. I wanted to paste the codes and the errors here but it could not be pasted and I do not know why!!!!!!!! Do you know how it works? Is there another way of "copping and pasting"?
Maybe try a screenshot instead. Please also answer the other questions of @slelievre, so that you can be helped.