Add python script for replacing certain char inside a word

replace_string.py

@@ -0,0 +1,18 @@
+def ubahString(word:str, appearance:int, changed_char:list, substitute:str):
+    seen = list()
+    list_letter = list(word)
+
+    for letter in word.lower():
+        if not letter in seen and letter != ' ':
+            seen.append(letter)                       
+            letter_position = [pos for pos, char in enumerate(word.lower()) if char == letter]
+
+            if letter in changed_char and len(letter_position) >= appearance:
+                list_letter[letter_position[appearance-1]] = substitute        
+
+    output = ''.join(list_letter)
+
+    return output
+
+if __name__ == '__main__':
+    print(ubahString('Mantap', 1, ['a', 'p'], '*'))