CODEWITHSUNDEEP
python
jmacfinn
jmacfinn

Reputation: 17

Replacing a word in a string in python 3

I'm trying to write a function that will replace a word in a sentence (which are two separate strings) with "-". It works but I can figure out how to use len to make it so that it will print the correct amount of dashes for the number of characters in the word.

I have been using str.replace() but I can't figure out how to properly work in len(word) into the function so that it will print the correct number of dashes. 

sentance=("what is tomorrow's date?")
word="what"

def replaceWord():
        print (sentance.replace(word,"----",))

replaceWord()

Upvotes: 0

Views: 939

Answers (3)

codrelphi
codrelphi

Reputation: 1065

You have already got your answer. But, here I give you another way to achieve your goal. In this way, you can delibaretly choose your own separtor (e.g '-', '*', '/', etc.).

def replaceWord(sep, word, sentence):
    """
        :param sep: That is the separator.
        :param word: That is the work to replace.
        :param sentence: That is the sentence.
    """
    len_word = len(word)
    replacer = sep * len_word
    print(sentence.replace(word, replacer))

sentence = "what is tomorrow's date?"
word = "what"
sep = "-"  # you can change it
replaceWord(sep, word, sentence)

Output:

---- is tomorrow's date?

Upvotes: 0

Haziel Sánchez
Haziel Sánchez

Reputation: 19

Just multiply the dash string for the len of the word like this

dash = '-'
wl = len(word)
string_to_replace = dash * wl

Upvotes: 0

Sarah Lissachell
Sarah Lissachell

Reputation: 325

Try:

def replaceWord(s, w):
    word_len = len(w)
    dashes = '-' * word_len
    print(s.replace(w,dashes));

s = "what is tomorrow's date?"
w = "what"
replaceWord(s, w)

In python, is possible to multiply a string for a number to obtain that string repeated.

Upvotes: 3

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