CODEWITHSUNDEEP
pythonlist
Frazer224
Frazer224

Reputation: 167

Swapping Elements Between Lists

I'm creating a card game using Python. I've represented my cards as 5D, 10H, etc. So far I've used a .pop() approach to take cards from a deck [list] to the player's hand [list]. This was working great, until I created another list to act as the discard pile. When a player drops a card, I pop it into the discard list but it splits the characters into separate elements. No other list has done this throughout the program.

Example of what happens:

discard = []
hand = ['12D', '5C', '3D']
discard += hand.pop(0)
discard = ['1', '2', 'D']

How can I prevent this?

Upvotes: 2

Views: 73

Answers (1)

Robᵩ
Robᵩ

Reputation: 168616

+= adds a sequence to a list and is an alias for list.extend(). You want to add an individual element to the list, so += is not the correct operation for you.

Try this:

discard.append(hand.pop(0))

The Python documentation has a convenient table that explains all of the operations on lists and other mutable sequence types.

Upvotes: 3

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