Update crazyflie.py

[ntukenmez3]

def position(self) in crazyswarm (ROS) has been updated for crazyswarm2 (ROS2) as def get_position_from_tf(self). This function allows the developer to get linear position data from crazyflie according to 'world' frame.

[knmcguire]

Hi! I think this is perhaps better to use the Pose topic for this though instead of the transform tbh

[ntukenmez3]

I will use it too :)
May I ask one more thing about the pull request I made in the last week?
I couldn't get the reason why the updated crazyflie.py script get docker error?
Do we need to change additional settings to get rid of this issue?

[knmcguire]

Ah oke. But would it be possible to get the position data from the pose ros topic and not from the transform tree in this PR?

About the CI failing, If you check the error messages you see there are a lot of flake8 formatting errors in the CI flagged. It should provide a list of which once it has marked.

If you search online you can also find some terminal based tools to fix these type of flake8 problems either in VScode or from your terminal in the files

[knmcguire]

• cf.position from pose topics
• fix flake8 issues in ci

[knmcguire]

Ah sorry I missed the context of the following issue (try to always connect these to your PRs #815)

Here I saw that you had issues with using the topic directly. I'm not a fan of getting it from transforms itself but perhaps @whoenig can pitch in here as well?