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Hello! For example I have variable p in sage notebook. I need my class can find out the name of variable:

sage: p = 3
sage: my_class(p)
ans:  'p'

How to implement this feature? Thanks.

Hello! For example I have variable p in sage notebook. I need my class can find out the name of variable:

sage: p = 3
sage: my_class(p)
ans:  'p'

How to implement this feature? Thanks.Thanks. P.S.: sorry if my english isn't good.

Hello! For example I have variable p in sage notebook. I need my class can find out the name of variable:

sage: p = 3
sage: my_class(p)
ans:  'p'

How to implement this feature? Thanks. P.S.: sorry if my english isn't good.