How do i use tf2_ros to convert from quaternions to euler?

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Hello guys,

After a lot of time of setup i finally managed to be able to import tf2_ros in python3. I really would like to use tf2_ros to convert the orientation message of the odometry to roll, pitch and yaw angles. I read that you need to use tf2 to transform it.

I imported tf2_ros and tried the function:

(r,p,y) = tf2_ros.euler_from_quaternion(ori_list)

and

(r,p,y) = euler_from_quaternion(ori_list)

Both resulted in an error that euler_from_quaternion is not defined or that it is not an attribute of tf2_ros

What do i need to do to use the transformation? I preferably would like it to work with python3