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我知道在StackOverflow上有很多类似的问题,但我已经阅读并重新阅读它们,而且我似乎无法解决我的特定问题。Python和Postgresql:OperationalError:fe_sendauth:没有提供密码
我正在开发一个使用Peewee和Psycopg2访问PostGresQL数据库的Python应用程序。这一切都在Ubuntu Vagrant虚拟机中运行。
我不断收到这个错误,当我尝试通过Python来添加用户:
peewee.OperationalError:fe_sendauth:没有提供
这里的密码是我尝试添加用户的代码:
def add_user(user, password):
"""
:param username:
:param password:
:return:
"""
try:
#add user to admin user table
#AdminUserModel.create(username=user, password=password)
# add user to psql
conn = connect_to_db('postgres', 'postgres')
cursor = conn.cursor()
add_query = "CREATE ROLE %s WITH CREATEDB LOGIN PASSWORD %s"
add_data = (AsIs(user), password)
cursor.execute(add_query, add_data)
except IntegrityError:
return False
return True
def connect_to_db(db_name, username):
conn = psycopg2.connect(dbname=db_name, user=username)
conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
return conn
我已经改变了我的pg_hba.conf文件:
# Database administrative login by Unix domain socket
local all postgres trust
# "local" is for Unix domain socket connections only
local all all md5
# IPv4 local connections:
host all vagrant 127.0.0.1/32 trust
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all vagrant ::1/128 trust
host all all ::1/128 md5
并重新启动我的postgresql服务器。
这里是我的Vagrantfile:
Vagrant.configure(2) do |config|
config.vm.box = "ubuntu/trusty64"
config.vm.provider :virtualbox do |vb|
# use for debugging the vm
# vb.gui = true
# speed up networking
vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
vb.customize ["modifyvm", :id, "--natdnsproxy1", "on"]
end
config.vm.provision "shell", inline: <<-SHELL
sudo apt-get update
sudo apt-get install -y python-software-properties
sudo apt-get update -y
# sudo apt-get upgrade -y
sudo apt-get install -y postgresql postgresql-contrib postgresql-client libpq-dev
sudo sed -i "s/#listen_address.*/listen_addresses '*'/" /etc/postgresql/9.3/main/postgresql.conf
sudo cp /home/vagrant/cs419-project/vagrant_files/pg_hba.conf /etc/postgresql/9.3/main/pg_hba.conf
sudo service postgresql restart
# createuser -U postgres -s vagrant
sudo -u postgres psql -c "CREATE ROLE vagrant SUPERUSER LOGIN PASSWORD 'vagrant'"
sudo su postgres -c "createdb -E UTF8 -T template0 --locale=en_US.utf8 -O vagrant cs419"
sudo apt-get install -y python-pip python-psycopg2
sudo pip install peewee
SHELL
config.vm.synced_folder ".", "/home/vagrant/cs419-project", id: "vagrant",
owner: "vagrant",
group: "admin",
mount_options: ["dmode=775,fmode=664"]
end
请,任何帮助,您可以给我们非常感谢!
注意:最奇怪的部分是这似乎都工作之前,然后我不知道我改变了什么,但它停止工作。
服务器请求来自客户端密码,但你没有提供的密码。 –
但我以'postgres'登录,不需要密码。当我通过命令行连接时,至少我不需要它... –
您的pg_hba.conf指定除了用户'vagrant'之外,tcp连接需要密码。 'postgres'的无信任'信任'仅配置为Unix套接字访问 –