Django管理命令仅在将输出重定向到文件时才引发UnicodeEncodeError

Question

I have built a Django management command that prints out some stuff on stdout (using print ). All works fine, but...

When I try to redirect the output to a file, using

./manage.py my_command > a_file.txt

I get:

UnicodeEncodeError: 'ascii' codec can't encode character u'\u2013' in position 14: ordinal not in range(128)

No traceback, just that.

I tried ./manage.py my_command | less ./manage.py my_command | less just for the fun of it, and it showed some output, presumably lines before first non-ASCII char was encountered. Output has some UTF-8 chars, no way around that.

Same error happens on Mac laptop and on Red Hat Linux server. Using Python 2.7.9

What's happening here, and how can I dump the info to a file?

Answer 1

You can change the standard output of the script with UTF-8 encoded output :

import sys
import codecs
sys.stdout = codecs.getwriter('utf8')(sys.stdout)

Or you can encode your strings before printing them:

print string_containing_unicode.encode('utf-8')