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这是对我之前的问题的跟进。

我有一台 OSX Mavericks 机器，我在其中使用 MacPorts 安装了 Python 2.7 和 Babel 1.3。问题是我在那台机器上似乎至少有两个版本的 babel，除了我使用 MacPort 安装的一个，另一个没有安装 CLDR 语言环境数据文件，所以当我在我的应用程序目录中执行以下命令时：

pybabel extract -o ./locale/messages.pot ./

我收到此错误消息：

[...]
writing PO template file to ./locale/messages.pot
Traceback (most recent call last):
  File "/usr/local/bin/pybabel", line 8, in <module>
    load_entry_point('Babel==2.0-dev-20131218', 'console_scripts', 'pybabel')()
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/messages/frontend.py", line 1151, in main
    return CommandLineInterface().run(sys.argv)
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/messages/frontend.py", line 665, in run
    return getattr(self, cmdname)(args[1:])
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/messages/frontend.py", line 947, in extract
    sort_by_file=options.sort_by_file)
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/messages/pofile.py", line 427, in write_po
    messages = list(catalog)
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/messages/catalog.py", line 552, in __iter__
    for name, value in self.mime_headers:
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/messages/catalog.py", line 337, in _get_mime_headers
    locale='en')))
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/dates.py", line 609, in format_datetime
    locale = Locale.parse(locale)
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/core.py", line 284, in parse
    language = get_global('language_aliases').get(language, language)
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/core.py", line 53, in get_global
    _raise_no_data_error()
  File "/Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel/core.py", line 25, in _raise_no_data_error
  raise RuntimeError('The babel data files are not available. '
RuntimeError: The babel data files are not available. This usually happens because you are using a source checkout from Babel and you did not build the data files.  Just make sure to run "python setup.py import_cldr" before installing the library.

我发现 Babel 安装在我机器上的这些位置：

> cd /Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/
> ls
EGG-INFO    babel
> cd babel
> ls
__init__.py     core.py     localedata.py   numbers.py  support.py
__init__.pyc    core.pyc    localedata.pyc  numbers.pyc support.pyc
_compat.py      dates.py    localtime       plural.py   util.py
_compat.pyc     dates.pyc   messages        plural.pyc  util.pyc

> cd /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/babel
> ls
__init__.py     core.py     localedata      numbers.py  support.py
__init__.pyc    core.pyc    localedata.py   numbers.pyc support.pyc
_compat.py      dates.py    localedata.pyc  plural.py   util.py
_compat.pyc     dates.pyc   localtime       plural.pyc  util.pyc
                global.dat  messages

这些是我的环境中定义的各种路径：

> echo $PATH
/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin:/Users/XXXXX/.rvm/bin
> echo $PYTHONPATH

> echo $DYLD_FALLBACK_LIBRARY_PATH

> echo $DYLD_LIBRARY_PATH

> echo $DYLD_FALLBACK_FRAMEWORK_PATH

> echo $DYLD_FRAMEWORK_PATH

>

pybabel 是我使用以下命令创建的别名：

> alias pybabel='pybabel-2.7'

如何让 babel 在 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/babel 中看到 Babel 版本？

4

1 回答 1

1

我尝试设置 PYTHONPATH 但犯了一个错误......

我在鸡蛋存档 pybabel 中创建了一个符号链接，用于 MacPorts 版本中的 localedata/，它似乎有效：

> cd /Library/Python/2.7/site-packages/Babel-2.0_dev_20131218-py2.7.egg/babel
> ln -s /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/babel/localedata localedata
ln: localedata: Permission denied
> sudo ln -s /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/babel/localedata localedata
Password:
>

如果有人有更好的建议或意见，请发表评论或其他答案。谢谢你。

[跟进2014-01-09]---------------------------------------------------- -------------------------------------------------- --------------------

我仍然无法翻译“{% trans %}”标签，我在这里发现您需要像这样在 pybabel 上显式使用 -F 选项（即使 babel.cfg 文件在当前目录中！）：

> pybabel -v extract -F babel.cfg -o ./locale/messages.pot ./

在这里提供帮助的是我的 babel.cfg 文件的内容：

[jinja2: **/templates/**.html]
encoding = utf-8
[python: python/*.py]
[extractors] 
jinja2 = jinja2.ext:babel_extract

但是我收到“ImportError: No module named ...”错误消息，因为我没有正确配置 jinja2 和 markupsafe。所以，我添加了两个符号链接：

> sudo ln -s /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/jinja2 /Library/Python/2.7/site-packages/jinja2
> sudo ln -s /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/markupsafe /Library/Python/2.7/site-packages/markupsafe

它终于奏效了！我在messages.pot 文件中获得了“{% trans %}”标签的内容！

然而，我想知道这是否是他最好的解决方案......

于 2014-01-06T14:29:28.027 回答