"python.exe has stopped working" when os.execl() runs on Windows 7

[cormogram at gmail.com]

Was trying os.execl() and got a "python.exe has stopped working" on my Windows 7 Ultimate SP1 x64 desktop.

I'm using Python 2.7.4 and that happens when the second arg is ''. For example:

os.execl('filename.exe','')


Wtf? :(

http://postimg.org/image/vdliyuenh/