How to determine and change file character encoding

1) You can use file command to see the file character encoding

# file -bi httpd.log.20171026.0001
text/plain; charset=utf-8
# file -bi  httpd.log.20171025.0001
text/plain; charset=us-ascii

 

2) how to write  unicode support to file in python 2.7

use codecs.open to replace open directly .

[Ascii code] 

fp = open(name, 'a')

 

[unicode] 

import codecs

fp= codecs.open(name,'a',encoding='utf-8')