Rename PDF files by date (examples)

rename1.py

import os
import datetime


path = os.getcwd()
filenames = os.listdir(path)
for filename in filenames:
    if ".pdf" in filename:
        old_file_and_path = os.path.join(path, filename)
        filename = filename[:-4]
        date = datetime.datetime.strptime(filename, "%B %d, %Y")
        new_filename = date.strftime("%Y-%m-%d") + ".pdf"
        new_file_and_path = os.path.join(path, new_filename)
        print("renaming {} to {}".format(old_file_and_path, new_file_and_path))
        os.rename(old_file_and_path, new_file_and_path)
  

rename2.py

import os
import datetime


path = os.getcwd()
filenames = os.listdir(path)
for filename in filenames:
    if ".pdf" in filename:
        old_file_and_path = os.path.join(path, filename)
        filename = filename[:-24]
        # print("{}".format(filename))
        date = datetime.datetime.strptime(filename, "%b %Y")
        # print("{}".format(date))
        new_filename = date.strftime("%Y-%m") + ".pdf"
        # print("{}".format(new_filename))
        new_file_and_path = os.path.join(path, new_filename)
        print("renaming {} to {}".format(old_file_and_path, new_file_and_path))
        os.rename(old_file_and_path, new_file_and_path)