def load(self, requirements_file=None):
        """Load or reload requirements from a requirements.txt file.

        :param requirements_file: if not given, the filename used from
            initialization will be read again.
        """
        if requirements_file is None:
            requirements_file = self.filename
            if requirements_file is None:
                raise ValueError("no filename provided")
        elif isinstance(requirements_file, text_type):
            requirements_file = Path(requirements_file)
        self.clear()
        with requirements_file.open() as f:
            self.loads(f.read())

        if isinstance(requirements_file, (text_type, Path)):
            self.filename = requirements_file
def connect ():
    '''
    Create the connection to the MongoDB and create 3 collections needed
    '''
    try:
        # Create the connection to the local host 
        conn = pymongo.MongoClient()
        print 'MongoDB Connection Successful'
    except pymongo.errors.ConnectionFailure, err:
        print 'MongoDB Connection Unsuccessful'
        return False