Python temporary list

[brabra551]

Hi guys
del is modifying tmp_deck and deck itself, how can I make tmp_deck temporary so I can modify tmp_deck in the loop and reset it to deck value for each round of the for loop ?

f = open("in.txt","r")
lines = f.readlines()

def search (deck):
    for word in lines:
        tmp_deck = deck
        for letter in range(len(word)):
            match = False
            for element in range(len(tmp_deck)):
                if match == False and word[letter] == tmp_deck[element]:
                    match = True
                    del tmp_deck[pion]

 

[menator01]

It would help to know what deck is?
You may want to have a look at python's copy function.
From the docs:
Assignment statements in Python do not copy objects, they create bindings between a target and an object. For collections that are mutable or contain mutable items, a copy is sometimes needed so one can change one copy without changing the other. This module provides generic shallow and deep copy operations

deck = {'one':1, 'two': 2, 'three': 3}
deck_copy = deck.copy()
deck_copy['four'] = 4
print(f'deck -> {deck}\ndeck copy -> {deck_copy}')

output

deck -> {'one': 1, 'two': 2, 'three': 3}
deck copy -> {'one': 1, 'two': 2, 'three': 3, 'four': 4}

 

[brabra551]

deck is a list of string ( ['A','C','Z','X'] )

copy does the work, thank you !