[Pyrex] FAQ contribution

[Greg Ewing]

John J Lee <jjl at pobox.com>:

> Despite the clarity of the docs, I managed to trip over this about four
> times, and it took me a while to figure it out each time :-(don't ask me
> why I didn't learn the *third* time...).
> 
> Worth a FAQ?

Okay, I'll add it next time I'm updating the docs.

Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	   | A citizen of NewZealandCorp, a	  |
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