Just what the title says.

```
$ ./configure --help | grep -i ucs
  --enable-unicode[=ucs[24]]

```

Searching the official documentation, I found this:

> 
> **[sys.maxunicode](http://docs.python.org/3.1/library/sys.html#sys.maxunicode)**: An integer giving the
>  largest supported code point for a
>  Unicode character. The **value** of this
>  depends on the configuration option
>  that specifies whether Unicode
>  characters are stored as UCS-2 or
>  UCS-4.
> 
> 
> 

What is not clear here is - which value(s) correspond to UCS-2 and UCS-4.

The code is expected to work on Python 2.6+.