sqlalchemy not working????..what is the problem here? [duplicate]

sqlalchemy not working????..what is the problem here? [duplicate] - python

I tried to deploy web application on my server and I am getting this mysql database exception
Access denied for user 'root'#'localhost' (using password: YES) (Mysql::Error)
I tried to access the database from the command prompt using mysql -u root -p I am able to do all the database operations.
what is the error
java.sql.SQLException: Access denied for user 'root'#'localhost' (using password: YES)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2928)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:771)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3649)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1176)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2558)
at com.mysql.jdbc.Connection.<init>(Connection.java:1485)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
at java.sql.DriverManager.getConnection(DriverManager.java:620)
at java.sql.DriverManager.getConnection(DriverManager.java:200)
at com.mpigeon.DbConnection.DbConn(DbConnection.java:26)
at com.mpigeon.CheckLoginHome.doGet(CheckLoginHome.java:39)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

You need to grant access to root from localhost. Check this ubuntu help

try using root like..
mysql -uroot
then you can check different user and host after you logged in by using
select user,host,password from mysql.user;

check you are putting blank space in password.

From my answer here, thought this might be useful:
I tried many steps to get this issue corrected. There are so many sources for possible solutions to this issue that is is hard to filter out the sense from the nonsense. I finally found a good solution here:
Step 1: Identify the Database Version
$ mysql --version
You'll see some output like this with MySQL:
$ mysql Ver 14.14 Distrib 5.7.16, for Linux (x86_64) using EditLine wrapper
Or output like this for MariaDB:
mysql Ver 15.1 Distrib 5.5.52-MariaDB, for Linux (x86_64) using readline 5.1
Make note of which database and which version you're running, as you'll use them later. Next, you need to stop the database so you can access it manually.
Step 2: Stopping the Database Server
To change the root password, you have to shut down the database server beforehand.
You can do that for MySQL with:
$ sudo systemctl stop mysql
And for MariaDB with:
$ sudo systemctl stop mariadb
Step 3: Restarting the Database Server Without Permission Checking
If you run MySQL and MariaDB without loading information about user privileges, it will allow you to access the database command line with root privileges without providing a password. This will allow you to gain access to the database without knowing it.
To do this, you need to stop the database from loading the grant tables, which store user privilege information. Because this is a bit of a security risk, you should also skip networking as well to prevent other clients from connecting.
Start the database without loading the grant tables or enabling networking:
$ sudo mysqld_safe --skip-grant-tables --skip-networking &
The ampersand at the end of this command will make this process run in the background so you can continue to use your terminal.
Now you can connect to the database as the root user, which should not ask for a password.
$ mysql -u root
You'll immediately see a database shell prompt instead.
MySQL Prompt
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
MariaDB Prompt
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>
Now that you have root access, you can change the root password.
Step 4: Changing the Root Password
mysql> FLUSH PRIVILEGES;
Now we can actually change the root password.
For MySQL 5.7.6 and newer as well as MariaDB 10.1.20 and newer, use the following command:
mysql> ALTER USER 'root'#'localhost' IDENTIFIED BY 'new_password';
For MySQL 5.7.5 and older as well as MariaDB 10.1.20 and older, use:
mysql> SET PASSWORD FOR 'root'#'localhost' = PASSWORD('new_password');
Make sure to replace new_password with your new password of choice.
Note: If the ALTER USER command doesn't work, it's usually indicative of a bigger problem. However, you can try UPDATE ... SET to reset the root password instead.
[IMPORTANT] This is the specific line that fixed my particular issue:
mysql> UPDATE mysql.user SET authentication_string = PASSWORD('new_password') WHERE User = 'root' AND Host = 'localhost';
Remember to reload the grant tables after this.
In either case, you should see confirmation that the command has been successfully executed.
Query OK, 0 rows affected (0.00 sec)
The password has been changed, so you can now stop the manual instance of the database server and restart it as it was before.
Step 5: Restart the Database Server Normally
The tutorial goes into some further steps to restart the database, but the only piece I used was this:
For MySQL, use:
$ sudo systemctl start mysql
For MariaDB, use:
$ sudo systemctl start mariadb
Now you can confirm that the new password has been applied correctly by running:
$ mysql -u root -p
The command should now prompt for the newly assigned password. Enter it, and you should gain access to the database prompt as expected.
Conclusion
You now have administrative access to the MySQL or MariaDB server restored. Make sure the new root password you choose is strong and secure and keep it in safe place.

I faced the same error after upgrading MySQL server from 5.1.73 to 5.5.45
There is another way to fix that error.
In my case I was able to connect to MySQL using root password but MySQL actively refused to GRANT PRIVILEGES to any user;
Connect to MySQL as root
mysql -u root -p
then enter your MySQL root password;
Select database;
use mysql;
Most probably there is only one record for root in mysql.user table allowing to connect only from localhost (that was in my case) but by the default there should be two records for root, one for localhost and another one for 127.0.0.1;
Create additional record for root user with Host='127.0.0.1' if it's not there;
SET #s = CONCAT('INSERT INTO mysql.user SELECT ',
REPLACE((SELECT GROUP_CONCAT(COLUMN_NAME)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'user' AND TABLE_SCHEMA = 'mysql')
,"Host","'127.0.0.1'"),
' FROM mysql.user WHERE User="root"');
PREPARE stmt FROM #s;
EXECUTE stmt;
Additionally to that you can execute mysql_upgrade -u -p
to see if everything is ok.

This error happens if you did not set the password on install, in this case the mysql using unix-socket plugin.
But if delete the plugin link from settings (table mysql.user) will other problem. This does not fix the problem and creates another problem. To fix the deleted link and set password ("PWD") do:
1) Run with --skip-grant-tables as said above.
If it doesnt works then add the string skip-grant-tables in section [mysqld] of /etc/mysql/mysql.conf.d/mysqld.cnf. Then do sudo service mysql restart.
2) Run mysql -u root -p, then (change "PWD"):
update mysql.user
set authentication_string=PASSWORD("PWD"), plugin="mysql_native_password"
where User='root' and Host='localhost';
flush privileges;
quit
then sudo service mysql restart. Check: mysql -u root -p.
Before restart remove that string from file mysqld.cnf, if you set it there.
#bl79 is the author of this answer, i've just reposted it, because it does help!

My application is using Mura CMS and I faced this issue. However the solution was the password mismatch between my mysql local server and the password in the config files. As soon as I synched them it worked.

I solved this problem by deleting the empty users creating by MySQL. I only have root user and my own user. I deleted the rest.

Update the empty password in the table mysql.user of mysql
use mysql;
select host,user,password from mysql.user;
update mysql.user set password = PASSWORD('123456') where password = '';
flush privileges;

Update user table in mysql DB. And set some password where it is blank, i was using root user so i set password for root user.
update mysql.user set password = PASSWORD('123456') where password = '';
flush privileges;
And then again tried from ATG CIM by providing password and it worked fine.
http://i.stack.imgur.com/3Lchp.png

I got this problem today while installing SugarCRM (a free CRM).
The system was not able to connect to the database using the root user. I could definitively log in as root from the console... so what was the problem?
I found out that in my situation, I was getting exactly the same error, but that was because the password was sent to mysql directly from the $_POST data, in other words, the < character from my password was sent to mysql as < which means the password was wrong.
Everything else did not help a bit. The list of users in mysql were correct, including the anonymous user (which appears after the root entries.)

I googled a lot but did not find a definite answer to my problem. I used KeyPass to generate a strong password and could use it successfully on mysql workbench to connect but not from the command line. So I changed the psw to an easy one and it worked on the command line. I have managed to create a strong password that was able to connect from the terminal. So my advise is, try with an easy password first before trying all kind of things.

I was running UTs and I started receiving error messages. I am not sure what was the problem. But when I changed my encoding style in INTELLIJ to UTF8 it started working again.
access denied for user 'root'#'localhost' (using password yes)
hibernate
this is my URL
db.url=jdbc:mysql://localhost:3306/somedb?useUnicode=true&connectionCollation=utf8_general_ci&characterSetResults=utf8&characterEncoding=utf8

Add a user option in msyql.
GRANT PROXY ON ''#'' TO 'root'#'localhost' WITH GRANT OPTION;
and this link will be useful.

Related

how to get out of "caching_sha2_password" error? [duplicate]

I am connecting MySQL - 8.0 with MySQL Workbench and getting the below error:
Authentication plugin 'caching_sha2_password' cannot be loaded:
dlopen(/usr/local/mysql/lib/plugin/caching_sha2_password.so, 2): image
not found
I have tried with other client tool as well.
Any solution for this?

you can change the encryption of the password like this.
ALTER USER 'yourusername'#'localhost' IDENTIFIED WITH mysql_native_password BY 'youpassword';

Note: For MAC OS
Open MySQL from System Preferences > Initialize Database >
Type your new password.
Choose 'Use legacy password'
Start the Server again.
Now connect the MySQL Workbench

For Windows 10:
Open the command prompt:
cd "C:\Program Files\MySQL\MySQL Server 8.0\bin"
C:\Program Files\MySQL\MySQL Server 8.0\bin> mysql -u root -p
Enter password: *********
mysql> ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY 'newrootpassword';
Query OK, 0 rows affected (0.10 sec)
mysql> exit
Alternatively, you can change the my.ini configuration as the following:
[mysqld]
default_authentication_plugin=mysql_native_password
Restart the MySQL Server and open the Workbench again.

I had the same problem, but the answer by Aman Aggarwal didn't work for me with a Docker container running mysql 8.X.
I loged in the container
docker exec -it CONTAINER_ID bash
then log into mysql as root
mysql --user=root --password
Enter the password for root (Default is 'root')
Finally Run:
ALTER USER 'username' IDENTIFIED WITH mysql_native_password BY 'password';
You're all set.

You can change the encryption of the user's password by altering the user with below Alter command :
ALTER USER 'username'#'ip_address' IDENTIFIED WITH mysql_native_password BY
'password';
OR
We can avoid this error by make it work with old password plugin:
First change the authentication plugin in my.cnf file for Linux / my.ini file in Windows:
[mysqld]
default_authentication_plugin=mysql_native_password
Restart the mysql server to take the changes in affect and try connecting via MySQL with any mysql client.
If still unable to connect and getting the below error:
Unable to load plugin 'caching_sha2_password'
It means your user needs the above plugin. So try creating new user with create user or grant command after changing default plugin. then new user need the native plugin and you will able to connect MySQL.
Thanks

Currently (on 2018/04/23), you need to download a development release. The GA ones do not work.
I was not able to connect with the latest GA version (6.3.10).
It worked with mysql-workbench-community-8.0.11-rc-winx64.msi (from https://dev.mysql.com/downloads/workbench/, tab Development Releases).

Ok, wasted a lot of time on this so here is a summary as of 19 March 2019
If you are specifically trying to use a Docker image with MySql 8+, and then use SequelPro to access your database(s) running on that docker container, you are out of luck.
See the sequelpro issue 2699
My setup is sequelpro 1.1.2 using docker desktop 2.0.3.0 (mac - mojave), and tried using mysql:latest (v8.0.15).
As others have reported, using mysql 5.7 works with nothing required:
docker run -p 3306:3306 --name mysql1 -e MYSQL_ROOT_PASSWORD=secret -d mysql:5.7
Of course, it is possible to use MySql 8+ on docker, and in that situation (if needed), other answers provided here for caching_sha2_password type issues do work. But sequelpro is a NO GO with MySql 8+
Finally, I abandoned sequelpro (a trusted friend from back in 2013-2014) and instead installed DBeaver. Everything worked out of the box. For docker, I used:
docker run -p 3306:3306 --name mysql1 -e MYSQL_ROOT_PASSWORD=secret -d mysql:latest --default-authentication-plugin=mysql_native_password
You can quickly peek at the mysql databases using:
docker exec -it mysql1 bash
mysql -u root -p
show databases;

I was installing MySQL on my Windows 10 PC using "MySQL Web Installer" and was facing the same issue while trying to connect using MySQL workbench. I fixed the issue by reconfiguring the server form the Installer window.
Clicking on the "Reconfigure" option it will allow to reconfigure the server. Click on "Next" until you reach "Authentication Method".
Once on this tab, use the second option "Use Legacy Authentication Method (Retain MySQL 5.x Compatibility)".
Keep everything else as is and that is how I solved my issue.

Note: For Linux (Debian, Ubuntu, Mint)
I got this error:
MySQL Error Message: Plugin caching_sha2_password could not be loaded: /usr/lib/x86_64-linux-gnu/mariadb19/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory
I solved it with these steps:
Enter on mysql console: $ mysql -u root -p, if you don't have a password for root user, then:
Use mysql db: mysql> use mysql;
Alter your user for solve the problem: mysql> ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
Exit... mysql> quit;
Done!

like this?
docker run -p 3306:3306 -e MYSQL_ALLOW_EMPTY_PASSWORD=yes -d mysql --default-authentication-plugin=mysql_native_password
mysql -uroot --protocol tcp
Try in PWD
https://github.com/GitHub30/docs/blob/change-default_authentication_plugin/mysql/stack.yml
or You shoud use MySQL Workbench 8.0.11.

Open MySQL Command Line Client
Create a new user with a new pass
Considering an example of a path to a bin folder on top, here's the code you need to run in the command prompt, line by line:
cd C:\Program Files\MySQL\MySQL Server 5.7\bin
MySQL -u root -p
current password...***
CREATE USER 'nativeuser'#'localhost'
IDENTIFIED WITH mysql_native_password BY 'new_password';
Then, you can access Workbench again (you should be able to do that after creating a new localhost connection and using the new credentials to start using the program).
Set up a new local host connection with the user name mentioned above (native user), login using the password (new_password)
Courtesy: UDEMY FAQs answered by Career365 Team

For Windows 10,
Modify my.ini file in C:\ProgramData\MySQL\MySQL Server 8.0\
[mysqld]
default_authentication_plugin=mysql_native_password
Restart the MySQL Service.
Login to MySQL on the command line, and execute the following commands in MySQL:
Create a new user.
CREATE USER 'user'#'localhost' IDENTIFIED BY 'password';
Grant all privileges.
GRANT ALL PRIVILEGES ON * .* TO 'user'#'localhost';
Open MySQL workbench, and open a new connection using the new user credentials.
I was facing the same issue and this worked.

Although this shouldn't be a real
solution, it does work locally if you are stuck
ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY '';

This is my databdase definition in my docker-compose:
dataBase:
image: mysql:8.0
volumes:
- db_data:/var/lib/mysql
networks:
z-net:
ipv4_address: 172.26.0.2
restart: always
entrypoint: ['docker-entrypoint.sh', '--default-authentication-plugin=mysql_native_password']
environment:
MYSQL_ROOT_PASSWORD: supersecret
MYSQL_DATABASE: zdb
MYSQL_USER: zuser
MYSQL_PASSWORD: zpass
ports:
- "3333:3306"
The relevant line there is entrypoint.
After build and up it, you can test it with:
$ mysql -u zuser -pzpass --host=172.26.0.2 zdb -e "select 1;"
Warning: Using a password on the command line interface can be insecure.
+---+
| 1 |
+---+
| 1 |
+---+

For those using Docker or Docker Compose, I experienced this error because I didn't set my MySQL image version. Docker will automatically attempt to get the latest version which is 8.
I set MySQL to 5.7 and rebuilt the image and it worked as normal:
version: '2'
services:
db:
image: mysql:5.7

I found that
ALTER USER 'username'#'ip_address' IDENTIFIED WITH mysql_native_password BY 'password';
didn't work by itself. I also needed to set
[mysqld]
default_authentication_plugin=mysql_native_password
in /etc/mysql/mysql.conf.d/mysqld.cnf
on Ubuntu 18.04 running PHP 7.0

Here is the solution which worked for me after MySQL 8.0 Installation on Windows 10.
Suppose MySQL username is root and password is admin
Open command prompt and enter the following commands:
cd C:\Program Files\MySQL\MySQL Server 8.0\bin
mysql_upgrade -uroot -padmin
mysql -uroot -padmin
ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password BY
'admin'

If you are getting this error on GitLab CI like me:
Just change from latest to 5.7 version ;)
# .gitlab-ci.yml
rspec:
services:
# - mysql:latest (I'm using latest version and it causes error)
- mysql:5.7 #(then I've changed to this specific version and fix!)

Open my sql command promt:
then enter mysql password
finally use:
ALTER USER 'username'#'ip_address' IDENTIFIED WITH mysql_native_password BY 'password';
refer:https://stackoverflow.com/a/49228443/6097074
Thanks.

For me this started happening because on a project, I was using Docker image mysql:latest (which was version 5, and which was working fine), and during a later build, the latest version was switched to version 8, and stopped working. I changed my image to mysql:5 and I was no longer getting this error.

This error comes up when the tool being used is not compatible with MySQL8, try updating to the latest version of MySQL Workbench for MySQL8

If you still want to use the new authentication method, the proper solution is to install the mariadb-connector-c package. For Alpine, run:
apk add mariadb-connector-c
This will add the missing caching_sha2_password.so library into /usr/lib/mariadb/plugin/caching_sha2_password.so.

Almost like answers above but may be in simple queries, I was getting this error in my spring boot application along with hibernate after MySQL upgrade. We created a new user by running the queries below against our DB. I believe this is a temp work around to use sha256_password instead of latest and good authentication caching_sha2_password.
CREATE USER 'username'#'localhost' IDENTIFIED WITH mysql_native_password BY 'pa$$word';
GRANT ALL PRIVILEGES ON * .* TO 'username'#'localhost';

MySQLWorkbench 8.0.11 for macOS addresses this.
I can establish connection with root password protected mysql instance running in docker.

If you are trying to connect to a MySQL server from a text-based MySQL client from another computer (be it Docker or not)
Most answers here involve connecting from a desktop client, or ask you to switch to an older authentication method. If you're connecting it with the MySQL client (text-based), I made it work with a Debian Buster in a Docker container.
Say you have the apt system and wget set up, do the following:
sudo apt-get update
sudo apt-get install lsb-release -y
Download a Debian package which update apt sources for you from the MySQL web site.
sudo dpkg -i mysql-apt-config_0.8.13-1_all.deb and select the options you want. In my case I only need MySQL Tools & Connectors to be enabled.
sudo apt-get update
sudo apt-get install mysql-client -y
Done. You can now run the new MySQL client and connect with the new authentication method.

The below solution worked for me
Go to Mysql Workbench -> Server-> Users and Privileges
1.Click Add Account
2.Under Login Tab provide new details and make sure to choose the Authentication Type as standard and choose respective administrative roles and Schema Privileges

Actually MySql allows two type of authentication at the time of installation.
Password Encryption
Legacy Encryption
Read Here
So by checking legacy authentication the issue was resolved.

Try using legacy password while downloading and installing MySql, that helped me.
Or follow the method posted by Santhosh Shivan for Mac OS.

Just downloaded the latest mysqlworkbench which is compatible with the latest encryption:
https://downloads.mysql.com/archives/workbench/
Note: On Mac big Sur, the latest two versions: 8.0.22 and 8.0.23 are buggy and do not work.
Use 8.0.21 until these are fixed

I run docker in M1 (arm64), the direct way of changing in the docker bash does not work for me. Instead, I change the mysql image to be
mysql:8.0.26
and the platform is set as
linux/x86_64
and add default_authentication_plugin=mysql_native_password to my.cnf
Then, you rebuild your container.

Peer authentication failed for user "odoo"

I'm on Odoo 9, I have an issue when lunching odoo server $odoo.py -r odoo -w password, the localhost:8069 doesn't load and I get an error on terminal "Peer authentication failed for user "odoo"".
I already created a user "odoo" on postgres.
When lunching $odoo.py I can load the odoo page on browser but I can't create database (as default user).
It was working and i already created database but when I logged out I couldn't connect to my database account anymore.
Any ideas ?

You need to change your pg_hba.conf configuration.
This error means that you are using peer authentication, so you need to change it for md5 or something that suits you.
You can find more information here:
http://www.postgresql.org/docs/9.4/static/auth-pg-hba-conf.html
If you are connecting locally you will need to change the following entrance from
local all all peer
to something like this :
local all all md5

This helped me.
sudo nano /etc/postgresql/9.3/main/pg_hba.conf
then add
local all odoo trust
then restart postgres
sudo service postgresql restart

I know this is an old post but upper results are not working for me.Well this will definitely work.
You can see this django link.
Apparently there are multiple ways for authentication with postgresql.
So,if your Postgresql user is different from your linux user then one easy way is to add --db_host to localhost which is "127.0.0.1":
.odoo-bin -r "pg_user" -w 'pg_pass' --db_host "127.0.0.1"
If you feel any problem in this,Tell me i will elaburate further

pymysql cannot connect to mysql

I am trying to use pymsql to connect to MySQL db, the host is '115.28.236.225', and using the default port: 3306. The code is as bellow (db_connect.py):
import pymysql
def connDB():
conn=pymysql.connect(host='115.28.236.225',user='root',passwd='xxx',db='yyy',charset='utf8', port=3306)
cur=conn.cursor();
return (conn,cur);
conn,cur=connDB()
I use python db_connect.py to run, however, I got the error message pymysql.err.OperationalError: (1045, u"Access denied for user 'root'#'58.196.159.221' (using password: YES)") , I don't know where the host '58.196.159.221' comes from, which does not correspond to the one in the code.
(I have tried to use MySql Workbench to connect to MySQL, and that worked, so, I am sure it must be something wrong with the python code).
How can I solve this? Thanks in advance!

pymysql is awesome because it is a implemented purely in python - no external dependencies.
I'm willing to bet that you don't have the proper permissions set for the root account from external sources.
The reason why you are seeing pymysql.err.OperationalError: (1045,u"Access denied for user 'root'#'58.196.159.221' is because you probably only have access to mysql from 'root'#'localhost', 58.196.159.221 is the IP address of the system your python program is running from - don't believe me? run ifconfig and check your IP address.
fix:
Connect to the mysql console and run the following:
GRANT ALL ON root.* TO 'root'#'58.196.159.221' IDENTIFIED BY 'ENTER_PASSWORD_HERE' ;
FLUSH PRIVILEGES;
This will allow for remote access to mysql.
If you want to only access mysql from the local host you'd run this:
GRANT ALL ON root.* TO 'root'#'localhost' IDENTIFIED BY 'ENTER_PASSWORD_HERE' ;
FLUSH PRIVILEGES;
If you want to grant access from any IP address:
GRANT ALL ON root.* TO 'root'#'%' IDENTIFIED BY 'ENTER_PASSWORD_HERE' ;
FLUSH PRIVILEGES;
FLUSH PRIVILEGES reloads the privileges from the mysql database, which is necessary after you make a change to user permissions.

58.196.159.221 is most likely the address of the client that is running the script. It does not have permission to access your remote database; you will have to configure that in MySQL itself.

Setting up psycopg2 for the first time, how do you configure it for some test data bases?

This is my first time using PostgreSQL, I'm used to using MySQL where once you install MySQL server on Ubuntu for the first time, it'll ask you for a MySQL username and password. Once that's finished you can connect to it simply by providing:
MySQL Host: 127.0.0.1
Username: root
Password: 123pie
And from there you're ready to open up your favorite DB software like sequel pro and connect to it via SSH using the localhost IP of MySQL like shown above.
However right now my client is using PostgreSQL and so I need to learn how to set it up fast.
So far I've done this:
pip install psycopg2==2.4.5
Looks like this is just a library required for Django and Python to open up a PostgreSQL database. It doesn't look like something identical to MySQL Server.
Is installing PostgreSQL Server the next thing that I have to do? After I install that via the command line, is it exactly the same as setting up MySQL server?
I've never used PostgreSQL, I expect that it's very identical to using MySQL?

There's a nice, detailed guide on the Ubuntu-specific setup for PostgreSQL on the ubuntu community wiki. That should be your starting point.
For most applications it is sufficient to create a PostgreSQL user for the web server's username:
sudo -u postgres createuser www-data
then create a database owned by that user for the app to use:
sudo -u postgres createdb -O www-data test_django
and configure the app to connect with username www-data to the test_django database with no password. PostgreSQL on most distros, including Ubuntu, defaults to peer authentication where it requires you to have the same unix username as the postgres user you're connecting as, and doesn't require a password.
If the app forces you to supply a password and won't accept a blank one, or if you want the app to use a username different to the user that the web server runs as (i.e. to isolate multiple web apps from each other a bit), you need to add an entry to pg_hba.conf specifying md5 password authentication for that database/username combo - or just all users for all dbs.

Python Anywhere access denied to MySQL database

I started to use Python Anywhere today. I created the database MySQL following the instructions. The problem is I can't do a simple manage.py syncdb because I get access denied error for my user 'irgmedeiros' in my mysql database. I can't grant privileges to my user neither create another user with privileges. How to solve it? Couldn't find solution in their forum and I'm waiting a answer from email. Anybody experienced this before?

Some possible troubleshooting steps:
check the server address - mysql.server
double-check the password - is it the same as the one you configured on the pythonanywhere MySQL config screens
double-check the database name - this follows the format username$database_name
check if you can open a normal mysql console, firstly from the MySQL tab, and then manually in a bash shell with
.
mysql -u my_username -h mysql.server -p
[edit] - the final solution was:
* double-check the database name - this follows the format username$database_name
don't forget that username$ folks!

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