如何配置我的Python 2.7以在我的OSX Mavericks系統上使用正確的Babel安裝？

Question

這是我的previous question的後續行動。

我有一臺OSX Mavericks機器，我使用MacPorts安裝Python 2.7和Babel 1.3。 問題是，它似乎我至少有兩個版本的babel在該機器上，除了我使用MacPort安裝的，另一個沒有安裝CLDR語言環境數據文件，所以當我在我的應用程序中執行以下命令目錄：

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

我收到此錯誤信息：

[...] 
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. 

我發現安裝在我的機器上這些位置巴貝爾：

> 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 

這些都是在我的環境中定義的不同路徑：/本地

> alias pybabel='pybabel-2.7' 

我怎樣才能讓巴貝爾看到在/ opt巴貝爾版本：

> 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是我使用下面的命令創建一個別名/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/babel？

Answer 1

我嘗試設置PYTHONPATH，但犯了一個錯誤......

我創造了雞蛋存檔pybabel的符號鏈接使用的localedata等/在MacPorts的版本，它似乎已經奏效：

> 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議或建議，請留下評論或其他答案。謝謝。

[後續2014-01-09] ----------------------------------- -------------------------------------------------- -------------------------

我仍然無法獲得「{％trans％}」標記翻譯，我發現here你需要明確使用-F選項上那樣（即使babel.cfg文件是在當前目錄下！）pybabel：

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

而且在這裏幫我babel.cfg文件的內容：

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

但我得到「導入錯誤：沒有模塊名爲...」錯誤消息，因爲我沒有使用Jinja2和markupsafe正確配置。所以，我添加了兩個符號鏈接：

> 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 

它終於奏效了！我在我的messages.pot文件中獲得了「{％trans％}」標記的內容！

不過，我不知道這是不是他最好的解決辦法...