Here I’ll be using os package, it provides operating system interfaces to talk to file system. To read more about it, follow about link.

• Start from dirt basics, import os package using : import os

• View current working directory path: os.getcwd()

• View current directory contents in python: os.listdir()

• View content of directory of given path: os.listdir('/Users/username/tasks/')
  • Above will list content of directory: /Users/username/tasks/
  • It return error NotADirectoryError: [Errno 20] Not a directory, if path given isn’t a directory.

• Change current directory: os.chdir('/home/user/')

• To move to subdirectory: os.chdir(os.path.join(os.curdir(), subdirectory_name))
  • os.path.join(base_path, subdirectory): Returns path of subdirectory
• Rename a file, replace _ to - in files; i.e. change file_name to file-name:
  • If file is in current directory:
    • os.rename(os.path.join(os.getcwd(),file), os.path.join(os.getcwd(), file.replace('_','-')))
• Repeat above example for all files in current directory

    import os
    onlyfiles = [f for f in os.listdir() if isfile(f)]
    for file in onlyfiles:
        os.rename(os.path.join(os.getcwd(),file), os.path.join(os.getcwd(), file.replace('_','-')))