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### How to recreate traceback?

Hello, Sage Community.

When we write something like sin(t) without previously defining the variable t, we get a traceback like

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-138-17829414d33a> in <module>()
----> 1 sin(t)

NameError: name 't' is not defined


I would like to reproduce this text automatically. I have tried the following:

try:
sin(t)
except:
_typ_, _val_, _tb_ = sys.exc_info()
traceback.print_exception(_typ_, _val_, _tb_)


However, this produces a less rich output:

Traceback (most recent call last):
File "<ipython-input-139-55b9ce98509c>", line 2, in <module>
sin(t)
NameError: name 't' is not defined


How could I reproduce the rich output?