属性错误：模块'django.contrib.postgres.fields'没有属性'JSONField'

Question

从 GitHub 存储库安装项目并收到以下错误

 File "/Users/TheKotik/closer/blog/models.py", line 5, in <module>
    from rest_framework import serializers
  File "/Users/TheKotik/closer/denv/lib/python3.5/site-packages/rest_framework/serializers.py", line 1534, in <module>
    ModelSerializer.serializer_field_mapping[postgres_fields.JSONField] = JSONField
AttributeError: module 'django.contrib.postgres.fields' has no attribute 'JSONField'

不知道，它与什么有关。请帮忙..

整个回溯：

    File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/TheKotik/closer/denv/lib/python3.5/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
    utility.execute()
  File "/Users/TheKotik/closer/denv/lib/python3.5/site-packages/django/core/management/__init__.py", line 312, in execute
    django.setup()
  File "/Users/TheKotik/closer/denv/lib/python3.5/site-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/TheKotik/closer/denv/lib/python3.5/site-packages/django/apps/registry.py", line 108, in populate
    app_config.import_models(all_models)
  File "/Users/TheKotik/closer/denv/lib/python3.5/site-packages/django/apps/config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 665, in exec_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "/Users/TheKotik/closer/blog/models.py", line 5, in <module>
    from rest_framework import serializers
  File "/Users/TheKotik/closer/denv/lib/python3.5/site-packages/rest_framework/serializers.py", line 1534, in <module>
    ModelSerializer.serializer_field_mapping[postgres_fields.JSONField] = JSONField
AttributeError: module 'django.contrib.postgres.fields' has no attribute 'JSONField'

Answer 1

你的 Django 版本太低了。 JSONField 是在 Django 1.9（发行说明）中添加的，因此您需要升级才能使用JSONField