当在PyCharm中的Django项目上运行sync.db时，getdefaultlocale返回None [英] getdefaultlocale returning None when running sync.db on Django project in PyCharm

问题描述

OSX 10.7.3，PyCharm版本2.5构建PY 117.200

我将介绍如何得到错误：

1. 我开始一个新项目


2. 创建一个新的VirtualEnv，并选择Python 2.7作为我的基本解释器（保留继承全局包未勾选） / li>
   
3. 单击安装并选择Django v1.4


4. 选择 Django 项目类型


5. 勾选启用管理


6. 打开 settings.py 并将 sqlite3 添加到 DATABASES：ENGINE


7. 运行 sync.db


8. 创建数据库超级用户


9. 区域设置错误

问题似乎是getdefaultlocale（）方法没有返回任何东西（好的，无）。

$ {code} return getpass.getuser（）。decode（locale.getdefaultlocale（）[1]）$ ​​b $ b TypeError：decode（）参数1必须是字符串，而不是$ $ $ $ b

但是如果我en可以使用以下代码来运行virtualenv workon MyApplication 并运行 python

$ b $苹果公司（Apple Clang）3.0（标签/苹果/ cl ang ang ang-------------------------------------- 211.10.1）]在darwin
有关更多信息，请输入help，copyright，credits或license。
>>>导入区域设置
>>>打印locale.getdefaultlocale（）
（'en_GB'，'UTF-8'）

完整输出：

  bash -cl/Users/ash/.virtualenvs/Tester/bin/python /Applications/PyCharm.app/helpers/pycharm/django_manage.py syncdb
创建表... 
创建表auth_permission 
创建表auth_group_permissions 
创建表auth_group 
创建表auth_user_user_permissions 
创建表auth_user_groups 
创建表auth_user 
创建表django_content_type 
创建表django_session 
创建表django_site 
创建表django_admin_log 
 
刚刚安装了Django的验证系统，这意味着您没有定义任何超级用户。 
您要立即创建一个？ （是/否）：是
追溯（最近的最后一次呼叫）：
文件/Applications/PyCharm.app/helpers/pycharm/django_manage.py，第17行在< module> 
 run_module（manage_file，None，'__main__'）
文件/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py，第180行，在run_module 
 fname，loader，pkg_name）
文件/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py，第72行，在_run_code 
 exec_globals中的exec代码
文件/Users/ash/Development/PycharmProjects/Tester/manage.py，第10行在< module> 
 execute_from_command_line（sys.argv）
文件/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/__init__.py，第443行，在execute_from_command_line 
 utility.execute（）
文件/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/__init__.py，第382行，执行
 self.fetch_command（子命令）.run_from_argv（self.argv）
文件/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/ management / base.py，第196行，在run_from_argv 
 self.execute（* args，** options .__ dict__）
文件/Users/ash/.virtualenvs/Tester/lib/python2.7 /site-packages/django/core/management/base.py，第232行，执行
 output = self.handle（* args，** options）
文件/ Users / ash /。 $ // 
 return self.handle_noargs（** options）
文件/// lib / python2.7 / site-packages / django /用户/灰/ .virtualenvs /测试/ lib中/ python2.7 /秒ite-packages / django / core / management / commands / syncdb.py，第110行，在handle_noargs 
 emit_post_sync_signal（created_models，verbosity，interactive，db）
文件/Users/ash/.virtualenvs/ Tester / lib / python2.7 / site-packages / django / core / management / sql.py，第189行，emit_post_sync_signal 
 interactive = interactive，db = db）
文件/ Users / ash /.virtualenvs/Tester/lib/python2.7/site-packages/django/dispatch/dispatcher.py，第172行，发送
 response = receiver（signal = self，sender = sender，** named） 
文件/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py，第73行，在create_superuser 
 call_command（ creationuperuser，interactive = True，database = db）
文件/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/__init__.py，行150，在call_command 
 return klass.execute（* args，** defaults）
文件/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages /django/core/management/base.py，第232行，执行
 output = self.handle（* args，** options）
文件/Users/ash/.virtualenvs/Tester/ lib / python2.7 / site-packages / django / contrib / auth / management / commands / creationuperuser.py，第70行，在句柄
 default_username = get_default_username（）
文件/ Users / ash / .virtualenvs / Tester / lib / python2.7 / site-packages / django / contrib / auth / management / __ init__.py，第105行，get_default_username 
 default_username = get_system_username（）
文件/ Users /ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py，第85行，get_system_username 
 return getpass.getuser（）。decode（locale .getdefaultlocale（）[1]）$ ​​b $ b TypeError：decode（）参数1必须是字符串，而不是无
 
处理完成退出代码1 
  

解决方案

基本上，发生这种情况的原因是PyCharm默认情况下不能访问environmenta l变量

我已经找到3个解决方案：

2. 通过更改为PyCharm从终端窗口运行PyCharm，设置全局环境变量，使用CrazyCoder链接建议的链接。应用程序目录并运行 ./ pycharm （可能在您的PATH中创建一个符号链接，以减少不便）




3. 打开PyCharm首选项，浏览到控制台> Django Console ，输入您所需的环境变量，就像您在bash配置文件中一样。 LC_ALL = en_US.UTF-8

建议第三种方式是最优雅的，尽管默认情况下变量不加载是令人讨厌的。

OSX 10.7.3, PyCharm version 2.5 build PY 117.200

I'll run through how I get the error:

1. I start a new project
2. Create a new VirtualEnv and select Python 2.7 as my base interpreter (leave inherit global packages un-ticked)
3. Click Install and choose Django v1.4
4. Select Django project type
5. Tick Enable Admin
6. Open settings.py and add sqlite3 to DATABASES:ENGINE
7. Run sync.db
8. Get to the point of creating a database superuser
9. locale error

The problem seems to be that getdefaultlocale() method is not returning anything (well, None).

return getpass.getuser().decode(locale.getdefaultlocale()[1])
    TypeError: decode() argument 1 must be string, not None

However if I enable the virtualenv workon MyApplication and run python with the following code:

Python 2.7.2 (default, Feb  7 2012, 23:16:02) 
[GCC 4.2.1 Compatible Apple Clang 3.0 (tags/Apple/clang-211.10.1)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import locale
>>> print locale.getdefaultlocale()
('en_GB', 'UTF-8')

So does anybody know what's going on?

Full Output:

bash -cl "/Users/ash/.virtualenvs/Tester/bin/python /Applications/PyCharm.app/helpers/pycharm/django_manage.py syncdb"
Creating tables ...
Creating table auth_permission
Creating table auth_group_permissions
Creating table auth_group
Creating table auth_user_user_permissions
Creating table auth_user_groups
Creating table auth_user
Creating table django_content_type
Creating table django_session
Creating table django_site
Creating table django_admin_log

You just installed Django's auth system, which means you don't have any superusers defined.
Would you like to create one now? (yes/no): yes
Traceback (most recent call last):
  File "/Applications/PyCharm.app/helpers/pycharm/django_manage.py", line 17, in <module>
    run_module(manage_file, None, '__main__')
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 180, in run_module
    fname, loader, pkg_name)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/Users/ash/Development/PycharmProjects/Tester/manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line
    utility.execute()
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/base.py", line 196, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/base.py", line 232, in execute
    output = self.handle(*args, **options)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/base.py", line 371, in handle
    return self.handle_noargs(**options)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 110, in handle_noargs
    emit_post_sync_signal(created_models, verbosity, interactive, db)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/sql.py", line 189, in emit_post_sync_signal
    interactive=interactive, db=db)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 172, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 73, in create_superuser
    call_command("createsuperuser", interactive=True, database=db)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/__init__.py", line 150, in call_command
    return klass.execute(*args, **defaults)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/core/management/base.py", line 232, in execute
    output = self.handle(*args, **options)
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/contrib/auth/management/commands/createsuperuser.py", line 70, in handle
    default_username = get_default_username()
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 105, in get_default_username
    default_username = get_system_username()
  File "/Users/ash/.virtualenvs/Tester/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 85, in get_system_username
    return getpass.getuser().decode(locale.getdefaultlocale()[1])
TypeError: decode() argument 1 must be string, not None

Process finished with exit code 1

解决方案

Basically the reason this occurs is that PyCharm doesn't, by default, have access to environmental variables.

I've found 3 solutions to this problem:

1. Set a global environmental variable, using the link CrazyCoder suggests in the comments to this question.

2. Run PyCharm from a terminal window by changing to the PyCharm application directory and running ./pycharm (possibly create a symlink in your PATH to make this less inconvenient)

3. Open PyCharm preferences, browse to Console > Django Console, type in your required environmental variables as you would in your bash profile e.g. LC_ALL=en_US.UTF-8

I'd suggest the 3rd way as most elegant, although it's annoying that variables aren't loaded by default.

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