Question

In ps5, I've got a little problem with the display in part 4 'Playing a hand'. That's what I get on my screen:

Loading word list from file...
83667 words loaded.
play_game not implemented.
Current Hand: display hand: begin
a e k p r t x
display hand: end
None
Enter word, or a . to indicate that you are finished: .
Total score: 0 points.

I can't find where this 'None' comes from !
Here is the code (It's just the relevant part of my code): http://codepad.org/9HVnekat

Answer 1

The display hand function as it is written does not return anything- it simply prints the letters of your hand to screen. Therefore, when you put it in the print statement, it executes its own printing, but returns a None that the print statement then evaluates and prints to screen. Try taking your display_hand(hand) out of the print statement (again since it returns NOTHING (officially defaulting to a none), and the print statement evaluates that none). Something like this should work:

print 'Current Hand: ',
display_hand(hand)

Answer 2

Nice catch ! Thanks for your help ! Bad habits of a Java developer :)