lambda is not reconized as a command #135

So I run exactly these commands, as the readme.md file explains:

$ mkvirtualenv pylambda
(pylambda) $ mkdir pylambda
(pylambda) $ pip install python-lambda

From your pylambda directory, run the following to bootstrap your project.

(pylambda) $ cd pylambda
(pylambda) $ lambda init

When I run lambda init, It throws "lambda" is not recognized as an internal command. How can I fix this?