class argparse.ArgumentDefaultsHelpFormatter class argparse.MetavarTypeHelpFormatter

os.ctermid() Return the filename corresponding to the controlling terminal of the process. Availability:

lines Height of the terminal window in characters.

os.kill(pid, sig) Send signal sig to the process pid. Constants for the specific signals available on the

os.chmod(path, mode, *, dir_fd=None, follow_symlinks=True) Change the mode of path to the numeric mode. mode

class ctypes.c_double Represents the C double datatype. The constructor accepts an optional float initializer.

window.clrtobot() Erase from cursor to the end of the window: all lines below the cursor are deleted, and then the equivalent

newlines A string, a tuple of strings, or None, indicating the newlines translated so far. Depending on the implementation

os.chdir(path) Change the current working directory to path. This function can support

os.major(device) Extract the device major number from a raw device number (usually the st_dev or st_rdev