Open a file from the command line with an appropriate viewer.
open.py image.png
Opens an image in the image viewer.
open.py www.yahoo.com
Opens an URL in the web browser.
open.py
Opens the current folder in the file manager.
open.py /Path to/My File.pdf
Path and file names can have spaces in them, no backslashes or quotes needed. This simplifies pasting a file name e.g. as printed by the Linux locate command.