Python: Replace characters in string with equivalent in another string

Question

I'm trying to replace a character within a string with an equivalent character in another string.

String after changes made:

#C/084&"
#3*#%#C

Original String:

#+/084&"
#3*#%#+

How can I replace all 'C's back to '+'?

Have you tried str.replace?

zhangxaochen
– zhangxaochen

2014-03-02 12:37:53 +00:00
Commented Mar 2, 2014 at 12:37 — zhangxaochen
– zhangxaochen, Commented Mar 2, 2014 at 12:37
what makes characters "equivalent"?

Kos
– Kos

2014-03-02 12:39:54 +00:00
Commented Mar 2, 2014 at 12:39 — Kos
– Kos, Commented Mar 2, 2014 at 12:39

WeaselFox · Accepted Answer · 2014-03-02 12:39:32Z

2

Im not sure what you mean by "equivalent character", but if you mean replace all occurrences of a specific character anywhere in the string you can use string.replace('C','+').

answered Mar 2, 2014 at 12:39

WeaselFox

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2 Comments

user3370619 Over a year ago

I should have explained my question better, but what I mean is that I want to be able to find where all the C are in the string and replace it with another character in another string that is in the same position as it, without having to actually mention '+' in my code.

WeaselFox Over a year ago

ok, than that would be something like: string.replace('C',another_string[some_index])

vaultah · Accepted Answer · 2014-03-02 13:05:20Z

2

Use original_str.replace('C', '+')

Example:

>>> 'C++'.replace('C', '+')
'+++'
>>>

UPDATE:

first = list('C/084&"')
second = '3*#%#C'

for i, x in enumerate(first):
     first[i] = first[i] if x!='C' else second[i]

first = ''.join(first)

After it first is 3/084&"

edited Mar 2, 2014 at 13:05

answered Mar 2, 2014 at 12:39

vaultah

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Comments

saurabh · Accepted Answer · 2014-03-02 12:53:36Z

0

You can also re module for eg.

import re

string1 = '#+/084&"'
string2 = re.sub("+", "C", string1)
>>>string2
'#C/084&"'

answered Mar 2, 2014 at 12:53

saurabh

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Comments

johnwick · Accepted Answer · 2019-06-03 12:50:13Z

0

You can easily do this with string.replace() function:

  string1 = "#3*#%#C"
  string2 = string1.replace("C","+")
  print(string2)

answered Jun 3, 2019 at 12:50

johnwick

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