/usr/bin/env: ‘python\r’: No such file or directory

I'm working to learn Django. I've been working through a Django cookbook. My code was working fine until I started layering in changes to manage different environment deployment. It looks like the git pre-commit file is causing a error whenever I try to commit a change, stating

"/usr/bin/env: ‘python\r’: No such file or directory" 

If I hide the pre-commit file the commit succeeds. I've been banging my head against this for some time now (Google, phone-a-friend, etc.)

Thanks 

Jamie

Here's my pre-commit file. 

#!/usr/bin/env python

from subprocess import check_output, CalledProcessError
import os
from datetime import datetime

def root():
    ''' returns the absolute path of the repository root '''
    try:
        base = check_output(['git', 'rev-parse', '--show-toplevel'])
    except CalledProcessError:
        raise IOError('Current working directory is not a git repository')
    return base.decode('utf-8').strip()

def abspath(relpath):
    ''' returns the absolute path for a path given relative to the root of
        the git repository
    '''
    return os.path.join(root(), relpath)

def add_to_git(file_path):
    ''' adds a file to git '''
    try:
        base = check_output(['git', 'add', file_path])
    except CalledProcessError:
        raise IOError('Current working directory is not a git repository')
    return base.decode('utf-8').strip()


def main():
    file_path = abspath("myproject/settings/last-update.txt")

    with open(file_path, 'w') as f:
        f.write(datetime.now().strftime("%Y%m%d%H%M%S"))

    add_to_git(file_path)

if __name__ == '__main__':
    main()
.git/hooks/pre-commit (END)