如何在for循环中为字符串打印空格而不是下划线

Question

I currently have this code:

word_hidden = ""  
word = "Hello there"
hide_word = "_"
for i in range(len(word)):
word_hidden += hide_word
print(f"Word: {word_hidden}")

Output:

Word: ___________

Is there a way for me to print the space as a space in the output instead of an underline, like this:

Output:

Word: _____ _____

Answer 1

word = "Hello there"
hide_word = "_"

word_hidden = ''.join({' ':' '}.get(ch, hide_word) for ch in word)
print(word_hidden)

Prints:

_____ _____

---

Or:

word_hidden = ''
for ch in word:
    if ch == ' ':
        word_hidden += ch
    else:
        word_hidden += hide_word

print(word_hidden)

Prints:

_____ _____

Answer 2

You can split your word and run the loop over the list created like this. This would print an extra space at the end of the word too.

word_hidden = ""
word = "Hello There"
ls = word.split(" ")
hide_word = "_"

for item in ls:
    word_hidden += len(item)*hide_word
    word_hidden += " "
    
print (f"Word: {word_hidden}")

Answer 3

Regular expression should work fine.

import re
regex = re.compile('[a-zA-Z]')
regex.sub('_', 'Hello there')

output is:

'_____ _____'