How to get Sage back from a colon?

[Craig E Larson]

Sometimes I forget a parenthesis, etc, and I get a colon input prompt. Double-enter won't escape the colon. Correcting the syntax also isn't enough. Control-Z will exit Sage totally and I lose my data and history. Is there another way to escape the colon besides Control-Z?

Here's an example.

sage: is_P_position(ChompBoard([3,3,3,1])

....: 

....: is_P_position(ChompBoard([3,3,3,1]))

....: 

....: is_P_position(ChompBoard([3,3,3,1]))

....: 

....: 

....: 

....: 

....:   

....:          

Forever....

Thanks.

[Vincent Delecroix]

You need to close the parenthesis

sage: t = (
....: 1,
....: 2)
sage: t
(1, 2)

Vincent

[Craig E Larson]

Thanks!

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CELarson Web: http://www.people.vcu.edu/~clarson

Automated Conjecturing for Sage: http://nvcleemp.github.io/conjecturing/

The Conjecturing Project: http://independencenumber.wordpress.com

VCU Discrete Math Seminar: http://www.people.vcu.edu/~dcranston/DM-seminar/

VCU Precalculus Web: http://wp.vcu.edu/precalculus

Craig Larson, Associate Professor
Department of Mathematics and Applied Mathematics
Virginia Commonwealth University

4106 Grace E. Harris Hall
1015 Floyd Avenue
Richmond, VA 23284-2014

[John H Palmieri]

Control-C will cancel the current command and return you to the "sage:" prompt.

  John

[Volker Braun]

Press Control-C  (not: Z)