Python - change string chars into a list unless recurring

Question

I want to print all the characters in a string as a list but for each character to be printed once even if recurring. So far I have:

symbolsx = []
for line in ''.join(word_lines):
   for i in line:
       symbolsx.append(i)

This prints every character, even if the character is repeated.

Where are you printing the characters? – ρss Jun 11 '14 at 20:30 — ρss, Jun 11 '14 at 20:30

score 1 · Answer 1 · answered Jun 11 '14 at 20:31

1

symbolsx = list(set(symbolsx))

First pass the list to set function to remove duplicates, then reverted that set back to list by passing it to list function.

answered Jun 11 '14 at 20:31

Reloader

1

You should though put it back in a list for the OP – PyNEwbie Jun 11 '14 at 20:32
1

and also please add some explanation – ρss Jun 11 '14 at 20:33
1

The ordering of a set can't be guaranteed, whereas the ordering of a list can. – Tripp Kinetics Jun 11 '14 at 20:33

score 0 · Answer 2 · answered Jun 11 '14 at 20:32

0

How about:

symbolsx = []
for line in ''.join(word_lines):
    for i in line:
        if i not in symbolsx:
            symbolsx.append(i)

answered Jun 11 '14 at 20:32

Tripp Kinetics

2 Answers2