Django的管理命令無法返回字典

Question

我寫了一個管理命令：

class Command(BaseCommand): 

    def add_arguments(self, parser): 
     parser.add_argument("member_id", nargs="+", type=str) 

    def handle(self, *args, **options): 
     return other_function(options["member_id"][0]) 

調用導入函數：

def other_function(identifier): 
    return {"foo": "bar"} 

當我打電話從shell其它功能是否能夠正常工作;但是，使用管理命令時，我得到：

File "/Volumes/www/bin/../apps/manage.py", line 61, in <module> 
    execute_from_command_line(sys.argv) 
    File "/Volumes/www/src/django/django/core/management/__init__.py", line 354, in execute_from_command_line 
    utility.execute() 
    File "/Volumes/www/src/django/django/core/management/__init__.py", line 346, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/Volumes/www/src/django/django/core/management/base.py", line 394, in run_from_argv 
    self.execute(*args, **cmd_options) 
    File "/Volumes/www/lib/python2.7/site-packages/raven/contrib/django/management/__init__.py", line 41, in new_execute 
    return original_func(self, *args, **kwargs) 
    File "/Volumes/www/src/django/django/core/management/base.py", line 454, in execute 
    self.stdout.write(output) 
    File "/Volumes/www/src/django/django/core/management/base.py", line 111, in write 
    if ending and not msg.endswith(ending): 
AttributeError: 'dict' object has no attribute 'endswith' 

管理命令是否只能返回字符串？該文件似乎並沒有這麼說，但如果我將handle函數更改爲return "foo"它可以工作。但那似乎很愚蠢。

Answer 1

是的。它必須返回一個字符串，如果它返回任何東西。 「它可能會返回將被打印到標準輸出的Unicode字符串」 https://docs.djangoproject.com/en/1.9/howto/custom-management-commands/