Human: Python program to get the first file of the path glob. Assistant: 
Here is a Python program to get the first file of the path glob

import glob

def get_first_file(path_glob):
    """Gets the first file of the path glob.

    If the path glob is empty, returns None.
    """
    if not path_glob:
        return None
    return path_glob[0]

# Enter the path glob
path_glob = '/home/rosey/Desktop/*.txt'

# Calling the function
print((get_first_file(path_glob)))

#Example Output
# /

#Remember to inspect code for bugs.