[Python-mode] before 6.2.1

[Andreas Röhler]

Hi Barry, hi all,

in current trunk `interactive-p' is  replaced by 
`called-interactively-p', just to reduce compiler warnings.

`called-interactively-p' seems introduced only with 22.1, older Emacsen 
will be broken.

Is this a concern?

Cheers,

Andreas