os.mkdir()

os.mkdir() is a Python function in the OS Module category. Creates a single directory. Raises FileExistsError if it already exists. The syntax is os.mkdir(path, mode=0o777, *, dir_fd=None). Parameters: path — directory path. Returns: None. A typical example: os.mkdir("new_folder"). A close sibling is os.getcwd(), which returns the current working directory as a string. A close sibling is os.chdir(), which changes the current working directory to the given path. A close sibling is os.listdir(), which returns a list of all files and directories in the given path. A close sibling is os.makedirs(), which creates all intermediate directories as needed (like mkdir -p). More about this category: Operating system interface — file operations, paths, environment variables. For a broader walkthrough, read the OS Module guide. Related OS Module entries: os.getcwd(), os.chdir(), os.listdir(), os.makedirs(), os.remove(), os.rmdir(). This page is part of the free Python Reference documentation covering 978+ functions, methods, and modules with examples and parameter details.