Fixes geerlingguy#344: Explicitly set debian/ubuntu python 3 mysql library.

Author: geerlingguy

README.md

@@ -84,9 +84,9 @@ The formats of these are the same as in the `mysql_user` module.
 
 (RedHat/CentOS only) If you have enabled any additional repositories (might I suggest geerlingguy.repo-epel or geerlingguy.repo-remi), those repositories can be listed under this variable (e.g. `remi,epel`). This can be handy, as an example, if you want to install later versions of MySQL.
 
-    mysql_python_package_debian: ''
+    mysql_python_package_debian: python3-mysqldb
 
-(Ubuntu/Debian only) If you need to explicitly set the MySQL Python package, you can set it here. If not set, it will default to `python-mysqldb` for Python 2 and `python3-mysqldb` for Python 3.
+(Ubuntu/Debian only) If you need to explicitly override the MySQL Python package, you can set it here. Set this to `python-mysqldb` if using older distributions running Python 2.
 
     mysql_port: "3306"
     mysql_bind_address: '0.0.0.0'

molecule/default/converge.yml

@@ -3,9 +3,6 @@
   hosts: all
   become: true
 
-  vars:
-    mysql_python_package_debian: python3-mysqldb
-
   roles:
     - role: geerlingguy.mysql
 

tasks/setup-Debian.yml

@@ -7,11 +7,6 @@
   apt: update_cache=yes
   when: not mysql_installed.stat.exists
 
-- name: Determine required MySQL Python libraries.
-  set_fact:
-    mysql_python_package_debian: "{% if 'python3' in ansible_python_interpreter|default('') %}python3-mysqldb{% else %}python-mysqldb{% endif %}"
-  when: mysql_python_package_debian is not defined
-
 - name: Ensure MySQL Python libraries are installed.
   apt:
     name: "{{ mysql_python_package_debian }}"