Problem with pip install mariadb - mariadb_config not found

I have been trying to run pip3 install mariadb on my raspberry pi running ubuntu 18.04 and I was unsuccessful.

I have tried installing following packages as suggested in other answers:

sudo apt-get install mariadb-server
sudo apt-get install libmariadbclient-dev
sudo apt-get install libmysqlclient-dev

pip3 install mysqlclient
pip3 install mysql-connector-python-rf

However, I'm still running intto the problem as shown:

ubuntu@ubuntu:~$ pip3 install mariadb
Collecting mariadb
  Using cached https://files.pythonhosted.org/packages/8f/c9/7050899dc1066409a17e1147d3afe1b078e582afdb755c6d3cb9c9a5c3ab/mariadb-1.0.0.tar.gz
    Complete output from command python setup.py egg_info:
    /bin/sh: 1: mariadb_config: not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-2gdw_t_r/mariadb/setup.py", line 26, in <module>
        cfg = get_config(options)
      File "/tmp/pip-build-2gdw_t_r/mariadb/mariadb_posix.py", line 49, in get_config
        cc_version = mariadb_config(config_prg, "cc_version")
      File "/tmp/pip-build-2gdw_t_r/mariadb/mariadb_posix.py", line 27, in mariadb_config
        "mariadb_config not found.\nPlease make sure, that MariaDB Connector/C is installed on your system, edit the configuration file 'site.cfg' and set the 'mariadb_config'\noption, which should point to the mariadb_config utility.")
    OSError: mariadb_config not found.
    Please make sure, that MariaDB Connector/C is installed on your system, edit the configuration file 'site.cfg' and set the 'mariadb_config'
    option, which should point to the mariadb_config utility.
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-2gdw_t_r/mariadb/

I do have /etc/mysql/my.cnf file.

It looks like that you didn't install MariaDB Connector/C properly, on Ubuntu mariadb_config should be found in /usr/bin.

Please also note, that MariaDB Connector/Python requires MariaDB Connector/C 3.1.5 or newer, afaik Ubuntu 18.04 provides 3.0.3 - so simplest way would be to download the Connector/C sources and build it manually.