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Babel does not recognize jinja2 extraction method to support language

I am adding text translation support to my project. The code is in Python and has jinja2 in html files and Javascript.

I am trying to use Babel to translate, but it does not recognize the jinja2 extraction method. Perhaps I am using the wrong name for it.

This is my ini file:

# Extraction from Python source files
[python: **.py]
# Extraction from Jinja2 template files
[jinja2: **.html]
# Extraction from JavaScript files
[javascript: **.js]
extract_messages = $._, jQuery._

And this is the error I get;

C:\>python Babel-0.9.6/babel/messages/frontend.py extract --project=GV --version=1 --no-location -o locale\messages.pot -F babel.ini frontend te
mplates
extracting messages from frontend\__init__.py
INFO:babel:extracting messages from frontend\__init__.py
...
Traceback (most recent call last):
  File "Babel-0.9.6/babel/messages/frontend.py", line 1208, in <module>
    main()
  File "Babel-0.9.6/babel/messages/frontend.py", line 1107, in main
    return CommandLineInterface().run(sys.argv)
  File "Babel-0.9.6/babel/messages/frontend.py", line 651, in run
    return getattr(self, cmdname)(args[1:])
  File "Babel-0.9.6/babel/messages/frontend.py", line 912, in extract
    for filename, lineno, message, comments in extracted:
  File "c:\Python27\lib\site-packages\babel-0.9.6-py2.7.egg\babel\messages\extract.py", line 172, in extract_from_dir
    strip_comment_tags):
  File "c:\Python27\lib\site-packages\babel-0.9.6-py2.7.egg\babel\messages\extract.py", line 202, in extract_from_file
    strip_comment_tags))
  File "c:\Python27\lib\site-packages\babel-0.9.6-py2.7.egg\babel\messages\extract.py", line 271, in extract
    raise ValueError('Unknown extraction method %r' % method)
ValueError: Unknown extraction method 'jinja2'
Press any key to continue . . .

Any ideas? Thanks Gadi

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3 answers

I saw that your question was still unanswered. Your problem is similar to what I got after reinstalling my development environment:

$ pybabel extract -F babel.cfg -o messages.pot .
extracting messages from admin.py
:
extracting messages from templates/404.html (extensions="jinja2.ext.autoescape,jinja2.ext.with_")
Traceback (most recent call last):
  File "/usr/local/bin/pybabel", line 9, in <module>
    load_entry_point('Babel==0.9.6', 'console_scripts', 'pybabel')()
  File "/usr/local/lib/python2.7/dist-packages/Babel-0.9.6-py2.7.egg/babel/messages/frontend.py", line 1107, in main
    return CommandLineInterface().run(sys.argv)
  File "/usr/local/lib/python2.7/dist-packages/Babel-0.9.6-py2.7.egg/babel/messages/frontend.py", line 651, in run
    return getattr(self, cmdname)(args[1:])
  File "/usr/local/lib/python2.7/dist-packages/Babel-0.9.6-py2.7.egg/babel/messages/frontend.py", line 912, in extract
    for filename, lineno, message, comments in extracted:
  File "/usr/local/lib/python2.7/dist-packages/Babel-0.9.6-py2.7.egg/babel/messages/extract.py", line 171, in extract_from_dir
    strip_comment_tags):
  File "/usr/local/lib/python2.7/dist-packages/Babel-0.9.6-py2.7.egg/babel/messages/extract.py", line 201, in extract_from_file
    strip_comment_tags))
  File "/usr/local/lib/python2.7/dist-packages/Babel-0.9.6-py2.7.egg/babel/messages/extract.py", line 270, in extract
    raise ValueError('Unknown extraction method %r' % method)
ValueError: Unknown extraction method 'jinja2'

, jinja2. , . jinja2 :

$ sudo pip install jinja2

:

$ pybabel extract -F babel.cfg -o messages.pot .
extracting messages from admin.py
:
extracting messages from test/item_tests.py
writing PO template file to messages.pot
+11

jinja2, .

, cfg:

# Extraction from Jinja2 template files  
[jinja2: **.html]

:

# Extraction from Jinja2 template files  
[jinja2.ext:babel_extract[i18n]: **.html]
+2

I had the same problem. I solved this by updating setuptools from 20.7.0 to a newer version:

sudo pip install --upgrade setuptools
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