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Replace() method not working within function

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2

I am making a function that accepts a plain text file and then returns a list of words in that file. Obviously, I would like to get rid of any newline 'n', however, when using '.replace()' nothing happens.

Function:

textfile = 'name.txt'

def read_words(filename):
 f = open(filename,'r')
 message = f.read()
 a = message.replace('n', '')
 wordlist = a.split(' ')
 print(wordlist)

read_words(textfile)

Sample txt:

Thisnnisnnnannnmynnwfile with spaces and blanks

My output:

['This\n\nis\n\n\na\n\n\nmy\n\nwfile', 'with', 'spaces', 'and', 'blanks']

Why is the '.replace()' method not working?

python python-3.x

share|improve this question

edited Mar 9 at 1:28

Okeh

asked Mar 9 at 1:20

OkehOkeh

706

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  The replace method is certainly working. What's your expected output?
  
  – blhsing
  Mar 9 at 1:25
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Why is the '.replace()' method not working? Show us the output that makes you think it isn't working. You've only shown us the sample file contents, which doesn't demonstrate anything.
  
  – John Gordon
  Mar 9 at 1:26
  
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  Is sample txt literally the string Thisnnisnnnannnmynnwfile with spaces and blanks, or are you replacing the newlines with n for us? If the former, you'll need to escape the backslash in your replace: message.replace('\n', '')
  
  – Dillon Davis
  Mar 9 at 1:28
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  How does one input the single character 'n' in a txt file?
  
  – Okeh
  Mar 9 at 1:29
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  @DillonDavis Happy to accept an answer of yours if you post one
  
  – Okeh
  Mar 9 at 1:45
  

  
  
  
  

 | 
show 12 more comments

2

I am making a function that accepts a plain text file and then returns a list of words in that file. Obviously, I would like to get rid of any newline 'n', however, when using '.replace()' nothing happens.

Function:

textfile = 'name.txt'

def read_words(filename):
 f = open(filename,'r')
 message = f.read()
 a = message.replace('n', '')
 wordlist = a.split(' ')
 print(wordlist)

read_words(textfile)

Sample txt:

Thisnnisnnnannnmynnwfile with spaces and blanks

My output:

['This\n\nis\n\n\na\n\n\nmy\n\nwfile', 'with', 'spaces', 'and', 'blanks']

Why is the '.replace()' method not working?

python python-3.x

share|improve this question

edited Mar 9 at 1:28

Okeh

asked Mar 9 at 1:20

OkehOkeh

706

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  The replace method is certainly working. What's your expected output?
  
  – blhsing
  Mar 9 at 1:25
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Why is the '.replace()' method not working? Show us the output that makes you think it isn't working. You've only shown us the sample file contents, which doesn't demonstrate anything.
  
  – John Gordon
  Mar 9 at 1:26
  
  

  
  
  
  


• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  Is sample txt literally the string Thisnnisnnnannnmynnwfile with spaces and blanks, or are you replacing the newlines with n for us? If the former, you'll need to escape the backslash in your replace: message.replace('\n', '')
  
  – Dillon Davis
  Mar 9 at 1:28
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  How does one input the single character 'n' in a txt file?
  
  – Okeh
  Mar 9 at 1:29
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  @DillonDavis Happy to accept an answer of yours if you post one
  
  – Okeh
  Mar 9 at 1:45
  

  
  
  
  

 | 
show 12 more comments

I am making a function that accepts a plain text file and then returns a list of words in that file. Obviously, I would like to get rid of any newline 'n', however, when using '.replace()' nothing happens.

Function:

textfile = 'name.txt'

def read_words(filename):
 f = open(filename,'r')
 message = f.read()
 a = message.replace('n', '')
 wordlist = a.split(' ')
 print(wordlist)

read_words(textfile)

Sample txt:

Thisnnisnnnannnmynnwfile with spaces and blanks

My output:

['This\n\nis\n\n\na\n\n\nmy\n\nwfile', 'with', 'spaces', 'and', 'blanks']

Why is the '.replace()' method not working?

python python-3.x

share|improve this question

edited Mar 9 at 1:28

Okeh

asked Mar 9 at 1:20

OkehOkeh

706

textfile = 'name.txt'

def read_words(filename):
 f = open(filename,'r')
 message = f.read()
 a = message.replace('n', '')
 wordlist = a.split(' ')
 print(wordlist)

read_words(textfile)

Thisnnisnnnannnmynnwfile with spaces and blanks

['This\n\nis\n\n\na\n\n\nmy\n\nwfile', 'with', 'spaces', 'and', 'blanks']

share|improve this question

edited Mar 9 at 1:28

Okeh

asked Mar 9 at 1:20

OkehOkeh

706

share|improve this question

edited Mar 9 at 1:28

Okeh

asked Mar 9 at 1:20

OkehOkeh

706

asked Mar 9 at 1:20

OkehOkeh

706

asked Mar 9 at 1:20

OkehOkeh

706

2 Answers
2

active

oldest

votes

1

The issue with your current text replacement is that is considered an escape character- the literal characters n are interpreted as a newline character instead. To solution to this is to escape the character itself, via \. Your updated replace statement would then read:

a = message.replace('\n', '')

instead of:

a = message.replace('n', '')

share|improve this answer

answered Mar 9 at 1:48

Dillon DavisDillon Davis

3,1732827

add a comment | 

1

This might be case that python or some other programming languages reads new line as 'n' escape character. So when python reads your file 'n' means new line and '\n' means actual 'n' character you wrote in the text file.

So you need to replace like
a = message.replace('\n', '')

share|improve this answer

answered Mar 9 at 1:42

xillarxillar

462

add a comment | 

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1

The issue with your current text replacement is that is considered an escape character- the literal characters n are interpreted as a newline character instead. To solution to this is to escape the character itself, via \. Your updated replace statement would then read:

a = message.replace('\n', '')

instead of:

a = message.replace('n', '')

share|improve this answer

answered Mar 9 at 1:48

Dillon DavisDillon Davis

3,1732827

add a comment | 

1

The issue with your current text replacement is that is considered an escape character- the literal characters n are interpreted as a newline character instead. To solution to this is to escape the character itself, via \. Your updated replace statement would then read:

a = message.replace('\n', '')

instead of:

a = message.replace('n', '')

share|improve this answer

answered Mar 9 at 1:48

Dillon DavisDillon Davis

3,1732827

add a comment | 

The issue with your current text replacement is that is considered an escape character- the literal characters n are interpreted as a newline character instead. To solution to this is to escape the character itself, via \. Your updated replace statement would then read:

a = message.replace('\n', '')

instead of:

a = message.replace('n', '')

share|improve this answer

answered Mar 9 at 1:48

Dillon DavisDillon Davis

3,1732827

a = message.replace('\n', '')

a = message.replace('n', '')

share|improve this answer

answered Mar 9 at 1:48

Dillon DavisDillon Davis

3,1732827

answered Mar 9 at 1:48

Dillon DavisDillon Davis

3,1732827

answered Mar 9 at 1:48

Dillon DavisDillon Davis

3,1732827

1

This might be case that python or some other programming languages reads new line as 'n' escape character. So when python reads your file 'n' means new line and '\n' means actual 'n' character you wrote in the text file.

So you need to replace like
a = message.replace('\n', '')

share|improve this answer

answered Mar 9 at 1:42

xillarxillar

462

add a comment | 

1

This might be case that python or some other programming languages reads new line as 'n' escape character. So when python reads your file 'n' means new line and '\n' means actual 'n' character you wrote in the text file.

So you need to replace like
a = message.replace('\n', '')

share|improve this answer

answered Mar 9 at 1:42

xillarxillar

462

add a comment | 

This might be case that python or some other programming languages reads new line as 'n' escape character. So when python reads your file 'n' means new line and '\n' means actual 'n' character you wrote in the text file.

So you need to replace like
a = message.replace('\n', '')

share|improve this answer

answered Mar 9 at 1:42

xillarxillar

462

share|improve this answer

answered Mar 9 at 1:42

xillarxillar

462

answered Mar 9 at 1:42

xillarxillar

462

answered Mar 9 at 1:42

xillarxillar

462