python3.7&Django1.11.11兼容性问题

 环境：

>Django1.11.11

>python3.7

启动django时抛出如下异常：

Unhandled exception in thread started by .wrapper at 0x102ae59d8>
Traceback (most recent call last):
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/utils/autoreload.py", line 228, in wrapper
    fn(*args, **kwargs)
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 116, in inner_run
    autoreload.raise_last_exception()
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/utils/autoreload.py", line 251, in raise_last_exception
    six.reraise(*_exception)
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/utils/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/utils/autoreload.py", line 228, in wrapper
    fn(*args, **kwargs)
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/__init__.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/apps/registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/apps/config.py", line 94, in create
    module = import_module(entry)
  File "/Users/c/Envs/mdd_mall/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "", line 1006, in _gcd_import
  File "", line 983, in _find_and_load
  File "", line 967, in _find_and_load_unlocked
  File "", line 677, in _load_unlocked
  File "", line 728, in exec_module
  File "", line 219, in _call_with_frames_removed
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/contrib/admin/__init__.py", line 4, in 
    from django.contrib.admin.filters import (
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/contrib/admin/filters.py", line 10, in 
    from django.contrib.admin.options import IncorrectLookupParameters
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/contrib/admin/options.py", line 12, in 
    from django.contrib.admin import helpers, widgets
  File "/Users/c/Envs/mdd_mall/lib/python3.7/site-packages/django/contrib/admin/widgets.py", line 152
    '%s=%s' % (k, v) for k, v in params.items(),
    ^
SyntaxError: Generator expression must be parenthesized

 

解决方案：

进入 python3.7/site-packages/django/contrib/admin/widgets.py

            if params:
                related_url += '?' + '&'.join(
                    '%s=%s' % (k, v) for k, v in params.items(),#去除最后的逗号
                )