[SyntaxError] python main.py

[bigbigpark]

Traceback (most recent call last):
  File "main.py", line 3, in <module>
    from rover import rover, reset_uav
  File "/home/park/catkin_ws/src/uav_simulator/scripts/rover.py", line 1, in <module>
    from matrix_utils import hat, vee, q_to_R
  File "/home/park/catkin_ws/src/uav_simulator/scripts/matrix_utils.py", line 140
    R = np.eye(3) + y * hat_r + 0.5 * y2**2 * hat_r @ hat_r
                                                    ^
SyntaxError: invalid syntax

How can I solve this syntax error? I found the error is about decorator in Python syntax but I'm not familiar to this environment

[kanishkegb]

Do you run python3 main.py or python main.py?

Also, which python version do you use?

[bigbigpark]

I run the code using Python 2.0

My desktop is operating on Ubuntu 18.04 (ROS Melodic).

Thanks

2022년 3월 7일 (월) 오후 9:33, Kanishke Gamagedara @.***>님이 작성:

Do you run python3 main.py or python main.py?

Also, which python version do you use?

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[kanishkegb]

It seems like a Python version issue. According to this, matrix multiplication using "@" was introduced in Python 3.5. You either have to upgrade your Python version to >3.5 or replace multiplication operations that uses "@" with matmul or dot.

[bigbigpark]

Oh thanks :)
I got new information about that!
However, I use ROS framework :( so I have to Python version 2.0