Python 和 Postgresql：OperationalError：fe_sendauth：未提供密码
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Python and Postgresql: OperationalError: fe_sendauth: no password supplied
提问by Becky S
I know there are a lot of similar questions on StackOverflow, but I have read and re-read them, and I cannot seem to solve my particular issue.
我知道 StackOverflow 上有很多类似的问题，但我已经阅读并重新阅读它们，我似乎无法解决我的特定问题。
I am developing a Python application that uses Peewee and Psycopg2 to access PostGresQL databases. This is all being run in an Ubuntu Vagrant Virtual Machine.
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。
I keep getting this error when I try to add a user via Python:
当我尝试通过 Python 添加用户时，我不断收到此错误：
peewee.OperationalError: fe_sendauth: no password supplied
peewee.OperationalError: fe_sendauth: 未提供密码
Here is the code where I try to add a user:
这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
I have changed my pg_hba.conffile to:
我已将pg_hba.conf文件更改为：
# 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
And have restarted my postgresql server.
并重新启动了我的 postgresql 服务器。
Here is my Vagrantfile:
这是我的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
Please, any help you can give is much appreciated!
请，您能提供的任何帮助都非常感谢！
NOTE: The weirdest part is this all seemed to be working before and then I don't know what I changed but it stopped working.
注意：最奇怪的部分是这一切之前似乎都在工作，然后我不知道我改变了什么，但它停止工作。
回答by Bogdan Ruzhitskiy
In pg_hba.conf file use trustaccess method for our fe_sendauth user
在 pg_hba.conf 文件中，trust为我们的 fe_sendauth 用户使用访问方法
回答by sl mahis
Can you try adding in a password changing this
您可以尝试添加密码来更改此设置吗
conn = psycopg2.connect(dbname=db_name, user=username)
to this?
到这个？
conn = psycopg2.connect(dbname=db_name, user=username, password=password)
this worked for me using my password for the postgres server
这对我有用，使用我的 postgres 服务器密码
