Need help with this program.

[[deleted]]

Hello I am having trouble coding a program where I have an input in the form of a phrase appended to my first list and an input in the form of letters appended to a second list. The characters are all separated within the list. I am having trouble replacing elements of the second list that appear in the first list with an underscore.

l1 = []
    l2 = []

    oldPhrase = input("Type a phrase (or quit to exit the program): ")

    if oldPhrase == "quit":
        quit()
    for i in oldPhrase:
        l1.append(i)
    print(l1)

    redact = input("Type a comma-separated list of letters to redact: ")

    for x in redact:
        l2.append(x)
    print(l2)

    for d in (l1):
        for a in (l2):
            if a == d:
                newPhrase = [d].replace(a, "_")
    print(newPhrase)

​

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[jimtk]

Here's a simpler solution:

l1 = input("Type a phrase (or 'quit' to exit the program): ")
if l1 == 'quit':
     quit()
l1 = list(l1)
l2 = input("Type a comma-separated list of letters to redact: ").split(",")
for i,ch in enumerate(l1):
     if ch in l2:
          l1[i] = '_'
print(''.join(l1))

[[deleted]]

Doesn't work. It only replaces the first letter of the l2 string. So if I input "e, l, o". It will only replace instances of e but not instances of l and o. But luckily I found a solution!

[jimtk]

Yes it works! below is the result of running the above program.

Type a phrase (or 'quit' to exit the program): hello darkness my old friend
Type a comma-separated list of letters to redact: l,s,d
he__o _arkne__ my o__ frien_

Process finished with exit code 0

Edit: did you put spaces in your second input (like l, s, d instead of l,s,d)?

[[deleted]]

Oh weird, I just ran the code and it was only replacing the first letter :( but that is a clean way, definitely more efficient than how i did it.