mysql_config: command not found or mariadb_config: command not found while installing flask-mysqldb

You may encounter this error “/bin/sh: mysql_config: command not found” while installing flask-mysqldb with pip or pip3. This error is caused due to non-availability of packages that are required at the system level.

Install the necessary packages by executing the below command in Fedora

sudo dnf install python-devel mysql-devel

and then install flask-mysqldb

pip3 install flask-mysqldb

In Ubuntu, by installing the package “python-mysqldb” by executing the command “sudo apt-get install python-mysqldb” will solve this issue.