Rename files in a directory based on a mappings file

rename_files.py

# Rename Files v1.1.0
# Imports a mappings file in this format:
# current_name1,new_name1
# current_name2,new_name2
# ...
# and renames files in a MacOS directory.
import os
import shlex

# Ask for directory path and use shlex to sanitize the path
directory_path_input = input("Enter directory path: ").strip()
directory_path_components = shlex.split(directory_path_input)
directory = ' '.join(directory_path_components)

# Ask for mapping file and use shlex to sanitize the path
mapping_file_path_input = input("Enter mapping file name: ").strip()
mapping_file_path_components = shlex.split(mapping_file_path_input)
mapping_file = ' '.join(mapping_file_path_components)

# read mapping file into a dictionary
mapping = {}
with open(mapping_file, 'r') as f:
    for line in f:
        old_name, new_name = line.strip().split(',')
        mapping[old_name.strip()] = new_name.strip()

# loop through files in directory and rename
for filename in os.listdir(directory):
    old_path = os.path.join(directory, filename)
    if os.path.isfile(old_path):
        old_name, extension = os.path.splitext(filename)
        if old_name in mapping:
            new_name = mapping[old_name] + extension
            new_path = os.path.join(directory, new_name)
            os.rename(old_path, new_path)