Python buildpack throwing error after upgrade

[Naga Rakesh]

Hi,

I've upgraded CF to v197 and from then facing an error while trying to deploy the python build pack. Following is the error I have got after running command :

$cf push <app_name> -b https://github.com/cloudfoundry/buildpack-python.git 

2015-03-11T17:10:59.53-0700 [STG]     OUT     Submodule 'compile-extensions' (https://github.com/cloudfoundry-incubator/compile-extensions.git) registered for path 'compile-extensions'

2015-03-11T17:10:59.57-0700 [STG]     ERR Cloning into 'compile-extensions'...

2015-03-11T17:11:00.65-0700 [STG]     OUT Submodule path 'compile-extensions': checked out '<VERSION>'

2015-03-11T17:11:00.80-0700 [STG]     OUT -------> Buildpack version 1.1.2

2015-03-11T17:11:00.84-0700 [STG]     ERR /tmp/buildpacks/buildpack-python/bin/compile: line 157: CF_STACK: unbound variable

2015-03-11T17:11:00.84-0700 [STG]     OUT Staging failed: Buildpack compilation step failed

2015-03-11T17:11:01.04-0700 [API]     ERR Encountered error: App staging failed in the buildpack compile phase

I couldn't really make it what CF_STACK is and where it is. Should I be using a buildpack from else where or should I update this CF_STACK at the specified line, can anyone please help me in resolving this issue.

I am using python v2.7.8

Thanks,

Venkata