Nicola De Quattro wrote:
> while(var !=q0)
> print """
> Please select an action from the menu below:
> --------------------------------------
> o) Open an image
> +) Rotate the image of 1° clockwise
> -) Rotate the image of -1° clockwise
> r) Rotate the image of an input degree
> s) Show the image
> a) Save the image
> q) Quit Tipsy Imp
> --------------------------------------
> """
> var = raw_input("Make a choice: ");
"var" is a rather meaningless name for a variable. Something like "choice"
might be better here.
BTW, you might want to look into a GUI toolkit. There's tkinter that comes
with Python, and there are many others that aren't hard to use either.
http://wiki.python.org/moin/FrontPage?action=fullsearch&context=180&value=gui&titlesearch=Titel
> ------------------------------------------------
>
> I've some questions:
> 1) Is there a switch-case statement in Python? It seems to me not. How
> do you suggest to proceed in order to switch into var values?
Use a dict that maps characters to functions and then
lookup_dispatch_function = { 'o' : open_image, ... }.get
def error_fallback():
print("Invalid input, try again")
# ...
choice = raw_input("Make a choice: ")
handle_input = lookup_dispatch_function(
choice.strip(), error_fallback)
handle_input()
Stefan
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