def install_mysql():
with settings(hide('warnings', 'stderr'), warn_only=True):
result = sudo('dpkg-query --show mysql-server')
if result.failed is False:
warn('MySQL is already installed')
return
mysql_password = prompt('Please enter MySQL root password:')
sudo('echo "mysql-server-5.5 mysql-server/root_password password ' \
'%s" | debconf-set-selections' % mysql_password)
sudo('echo "mysql-server-5.5 mysql-server/root_password_again password ' \
'%s" | debconf-set-selections' % mysql_password)
apt_get_install('mysql-server')
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