1 | initial version |

In Python 3 you can do some nice things like:

```
sage: π = pi
sage: sin(π)
0
sage: cos(π)
-1
```

and so on. For Python 3 builds of Sage it would be nice to have a few of these built-in. Per my comment on Nil's answer, special characters can be input fairly easily by using tab-completion.

2 | No.2 Revision |

In Python 3 you can do some nice things like:

```
sage: π = pi
sage: sin(π)
0
sage: cos(π)
-1
```

and so on. For Python 3 builds of Sage it would be nice to have a few of these built-in. Per my comment on Nil's answer, special characters can be input fairly easily by using tab-completion.

Ticket: https://trac.sagemath.org/ticket/28966

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