将句子中的单词更改为特殊字符

Question

I am trying to change some words in a sentence to special characters but I don't get the required output. Also i have tried using the replace method which doesn't seen to replace everything but only the first word.

new_sentence = ''
sentence = input('Enter your word:')

for char in sentence:
    if 'the' in sentence:
        new_sentence += '~'
    elif 'as' in sentence:
        new_sentence += '^'
    elif 'and' in sentence:
        new_sentence += '+'
    elif 'that' in sentence:
        new_sentence += '$'
    elif 'must' in sentence:
        new_sentence += '&'
    elif 'Well those' in sentence:
        new_sentence += '% #'
    else:
        new_sentence += sentence 
print(new_sentence)

This is what happens when i run it.

Enter your word:the as much and
~~~~~~~~~~~~~~~

Answer 1

You could store your character modifications in a dictionary and then apply them using replace() in a for loop, like so:

sentence = 'This is the sentence that I will modify with special characters and such'

modifiers = {'the': '~', 'as': '^', 'and': '+', 'that': '$', 'must': '&', 'Well those': '% #'}

for i, v in modifiers.items():
    sentence = sentence.replace(i, v)

Returns:

This is ~ sentence $ I will modify with special characters + such

Answer 2

@rahlf23 has the right method, but just in case you wanted to work with your current implementation:

If you split the sentence into individual words, then iterate over those and check what the word itself is, instead of checking each character in the input string and checking whether any of the words to replace exist in the string, you'll be on the right track

for word in sentence.split():
    if word.lower() == 'the':
    new_sentence += '~'
    ...