import os


def search_path(path, substring):
    """
    given a search substring, retrieve all the files in the Store
    that have that substring in them.

    Args:
        path (string): path to search
        substring (string): the string to be matched against

    Returns:
        list: a pythonized list of all the files in which the search
              substring is contained.
    """
    matched_files = [matched_file
                     for matched_file in os.listdir(path)
                     if substring in matched_file]

    return matched_files