Hi,

This patch should fix the following error when there is no function
defined at point.

Error during redisplay: (eval (replace-regexp-in-string "%" "%%"
(gethash (selected-window) which-func-table which-func-unknown)))
signaled (wrong-type-argument arrayp nil)

I get this error at point in python file when there is no function
defined before the cursor.

Takafumi