CODEWITHSUNDEEP
pythonfilesearchreplace
Rabit
Rabit

Reputation: 1

python regex replace returns an extra \n

I am trying to replace some text in a file with python 2.6

However, it returns an extra newline here is my code: 

for line in fileinput.input('/etc/php5/apache2/php.ini', inplace=True):
   replace = re.sub(r'(post_max_size =).[0-9]+(M)', r'\1 64\2', line)
   print replace

Input:

post_max_size = 6M
sdfsdfsd
post_max_size = 4M
sdfsdf
post_max_size = 164M
dfsdfsdfsdfsdf

output:

post_max_size = 64M

sdfsdfsd

post_max_size = 64M

sdfsdf

post_max_size = 64M

dfsdfsdfsdfsdf

Upvotes: 0

Views: 150

Answers (3)

Burhan Khalid
Burhan Khalid

Reputation: 174662

The extra output you are seing is from print, if you write the file back out, you should not see the extra line breaks.

Try it with this: print replace,

This is a minor point, but you should also pick a different name, as replace is the name for a method in the standard library for strings.

Upvotes: 1

cdarke
cdarke

Reputation: 44394

Try: print replace, instead. The trailing comma suppresses the newline (but adds a trailing space). For complete control use the print function from __future__ instead.

Upvotes: 0

tuxuday
tuxuday

Reputation: 3037

your regex is fine. print adds newline. use write instead.

Upvotes: 0

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