Replacing multiple spaces in Python

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SUMMARY

The discussion centers on creating a Python function named spacereplace(txt) that effectively replaces multiple consecutive spaces in a string with a single space. The initial attempt using txt.replace(" "," ") only addresses two spaces, while a more effective solution involves iterating through each character and checking for consecutive spaces. The final recommended implementation utilizes a loop to build a new string, ensuring that only a single space is added when multiple spaces are encountered.

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Homework Statement



Write a function spacereplace(txt) that removes two or more spaces in a row, replacing them with a single space. Any other characters should remain the same.

The Attempt at a Solution



I tried this:

def spacereplace(txt):
f=txt.replace(" "," ")
return f

This obviously just works when there are two spaces. I have no idea how to make it work for 2+.

This method apparently works:

def spacereplace(txt):
txt.split()
f=" ".join(txt.split())
return f

But it is not beeing accepted. Any ideas?
 
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Hello!

Here is one possible solution to your problem:

def spacereplace(txt):
new_txt = ""
prev_char = ""
for char in txt:
if char == " " and prev_char == " ":
continue
else:
new_txt += char
prev_char = char
return new_txt

Explanation: This function loops through each character in the input string and checks if it is a space. If it is, it also checks the previous character. If the previous character was also a space, it skips adding the current space to the new string. Otherwise, it adds the current character to the new string. This way, it only adds a single space even if there are multiple consecutive spaces.

I hope this helps! Let me know if you have any further questions or if this solution doesn't work for you. Good luck!
 

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