3 Way to replace multiple characters of a string at once in python

Learn how to replace multiple characters with relative values in Python. For an example in a string you want to replace character  'A' with '@', 'B' with 'b', 'c' with 'e' and  'e' with 'c' so on, you can do it in these 3 ways.

if string is : eontaet A eaBcasyAEmail.eom
Output will be : contact @ cabeasy@Email.com
Replace: 
A > @
B > b
c > e
e  > c 

1. Using replace() Method

 

new_str = str.replace('A','@').replace('B','b').replace('e','{{temp}}').replace('c','e').replace('{{temp}}','c')
print(new_str)

2. Using translate() Method

 

str = "eontaet A eaBcasyAEmail.eom"

# repSet = {
#     65:96,    # A > @
#     66:98,    # B > b
#     99:101,   # c > e
#     101:99    # e > c
#     }

#     OR

search = "ABce"
replacewith = "@bec"
repSet = str.maketrans(search, replacewith)


new_str = str.translate(repSet)

print(new_str)

3. Create Own Custom Replace Function

 

str = "eontaet A eaBcasyAEmail.eom"

# @ param {String}, 
# @ param {searchList}, {replaceList} (in same seq.)

def multiReplace(string, searchList, replaceList):
  newstr = '';
  for ch in string:    
    if ch in searchList:
      i = searchList.index(ch)
      newstr += replaceList[i]
    else:
      newstr += ch
  return newstr


new_str = multiReplace(str, ['A','B','c','e'], ['@','b','e','c'])

print(new_str)