os.path.isdir strange behaviouring

[Thomas Mangin]

Hi,

I notice that if a directory is root owned and chmoded 700 (let say /test)
and if it contain a directory called test2
os.path.isdir("/test/test2") return 0 if called by a "normal user"

I was expecting an exception.
Can so explain me why this "strange" behaviour ?

Thomas