Python reading from a file and saving to utf-8

问题:

I'm having problems reading from a file, processing its string and saving to an UTF-8 File.

Here is the code:

try:
    filehandle = open(filename,"r")
except:
    print("Could not open file " + filename)
    quit() 

text = filehandle.read()
filehandle.close()

I then do some processing on the variable text.

And then

try:
    writer = open(output,"w")
except:
    print("Could not open file " + output)
    quit() 

#data = text.decode("iso 8859-15")    
#writer.write(data.encode("UTF-8"))
writer.write(text)
writer.close()

This output the file perfectly but it does so in iso 8859-15 according to my editor. Since the same editor recognizes the input file (in the variable filename) as UTF-8 I don't know why this happened. As far as my reasearch has shown the commented lines should solve the problem. However when I use those lines the resulting file has gibberish in special character mainly, words with tilde as the text is in spanish. I would really appreciate any help as I am stumped....

回答1:

Process text to and from Unicode at the I/O boundaries of your program using the codecs module:

import codecs
with codecs.open(filename, 'r', encoding='utf8') as f:
    text = f.read()
# process Unicode text
with codecs.open(filename, 'w', encoding='utf8') as f:
    f.write(text)

Edit: The io module is now recommended instead of codecs and is compatible with Python 3's open syntax:

import io
with io.open(filename, 'r', encoding='utf8') as f:
    text = f.read()
# process Unicode text
with io.open(filename, 'w', encoding='utf8') as f:
    f.write(text)

回答2:

You can also get through it by the code below:

file=open(completefilepath,'r',encoding='utf8',errors="ignore")
file.read()

回答3:

You can't do that using open. use codecs.

when you are opening a file in python using the open built-in function you will always read/write the file in ascii. To write it in utf-8 try this:

import codecs
file = codecs.open('data.txt','w','utf-8')