1 | initial version |

Works for me in Sage 9.3.

Example:

```
sage: A.<x, y> = AffineSpace(QQ, 2)
sage: A
Affine Space of dimension 2 over Rational Field
sage: C = Curve(x^2 + y^2 -1)
sage: C
Affine Plane Curve over Rational Field defined by x^2 + y^2 - 1
```

Did you happen to redefine `Curve`

earlier in your code?

Can you observe the problem in a fresh Sage session?

Do you have things in your `init.sage`

file?

Does the problem persist after

```
sage: reset('Curve')
```

Same questions with `AffineSpace`

.

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