koji build rootlog errors with python using packages

[Parag N(पराग़)]

Hi,
   Today I did 2 koji builds with are having BR:python-devel and In
their root.log I saw
sh: /usr/bin/python: No such file or directory
I got confused on why root.log is showing above error.

Koji builds
http://koji.fedoraproject.org/koji/getfile?taskID=270902&name=root.log
http://koji.fedoraproject.org/koji/getfile?taskID=270886&name=root.log

Any one knows the reason?

Regards,
Parag.