Django无法在Heroku上迁移

Question

我在Heroku上迁移我的数据库时遇到heroku run python manage.py migrate试图运行heroku run python manage.py migrate 。 我总是得到这个错误：

(venv) E:\Studia\advise\promotion>heroku run python manage.py migrate
Running python manage.py migrate on ⬢ pro-motion... up, run.6349 (Free)
Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 325, in execute
    settings.INSTALLED_APPS
  File "/app/.heroku/python/lib/python3.6/site-packages/django/conf/__init__.py", line 79, in __getattr__
    self._setup(name)
  File "/app/.heroku/python/lib/python3.6/site-packages/django/conf/__init__.py", line 66, in _setup
    self._wrapped = Settings(settings_module)
  File "/app/.heroku/python/lib/python3.6/site-packages/django/conf/__init__.py", line 157, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
  File "/app/.heroku/python/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/app/promotion/settings.py", line 27, in <module>
    DEBUG = config('DEBUG', default=False, cast=bool)
  File "/app/.heroku/python/lib/python3.6/site-packages/decouple.py", line 197, in __call__
    return self.config(*args, **kwargs)
  File "/app/.heroku/python/lib/python3.6/site-packages/decouple.py", line 85, in __call__
    return self.get(*args, **kwargs)
  File "/app/.heroku/python/lib/python3.6/site-packages/decouple.py", line 79, in get
    return cast(value)
  File "/app/.heroku/python/lib/python3.6/site-packages/decouple.py", line 50, in _cast_boolean
    raise ValueError('Not a boolean: %s' % value)
ValueError: Not a boolean: True

Answer 1

您的屏幕截图显示了一个DEBUG环境变量，其值包含额外的空格。

根据您使用该变量的方式，空白容易引起问题。 删除那个额外的空格，看看是否能解决问题。

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此外，您已部分透露了您的SECRET_KEY和PostgreSQL凭据。 请更改SECRET_KEY并轮换您的数据库凭据 。 您当前的值不再安全。