python manage.py migrate：
django.db.utils.OperationalError: FATAL: database "postgres1" does not exist
但实际上我创建了角色和数据库并授予，结束一切都是正确的。
好的，然后检查createdb postgres1
createdb: database creation failed: ERROR: database "postgres1" already exists
我该怎么理解？默认postgres postgres配置工作，但没有任何一个创建的数据库工作。
编辑：更多追溯：
raise value.with_traceback(tb)
File "/Users/TheKotik/tick-tock/denv/lib/python3.5/site-packages/django/db/backends/base/base.py", line 130, in ensure_connection
self.connect()
File "/Users/TheKotik/tick-tock/denv/lib/python3.5/site-packages/django/db/backends/base/base.py", line 119, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/TheKotik/tick-tock/denv/lib/python3.5/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 176, in get_new_connection
connection = Database.connect(**conn_params)
File "/Users/TheKotik/tick-tock/denv/lib/python3.5/site-packages/psycopg2/__init__.py", line 130, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
django.db.utils.OperationalError: FATAL: database "postgres1" does not exist
Settings.py：
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'postgres1',
'USER':'postgres',
'PASSWORD':'',
'HOST': 'localhost',
'PORT': '',
}
}