ipython/ipython — pull request #1923 by fperez (2012-06-12 04:07:37+00:00)
Title: Add IPython syntax support to the %timeit magic, in line and cell mode

Allows the `%%timeit` magic to understand IPython special syntax, so the following both work:
```
%timeit %lmagic a+3
```

and

```
%%timeit
%lmagic a+3
```

It became clear to me that this would make a huge difference in the polish of the experience when timing parallel codes using the `%px` magic.