Cannot find function get_laser_summit() as required in exercise 3.2

Course Support Python Basics For Robotics
1

in “Unit 3: Functions” of Python for Robots, there is new simulation with a Summit XL robot, but in the robot_control_class, there is no “get_laser_summit()” function, as mentioned in exercise 3.2 .
This function is supposed to be found in robot_control_class that is loaded with the example, but its not in there. Can someone please clarify?

2

Hi James,

Did you copy the robot_control_class.py indicated in “Unit 1: Python Basics” (2 - Basic Concepts)? I just did and can find that function there.

PS: this function is an “instance method” of the RobotControl class; hence it can be accessed with something like this (as you can see from the solution).

robot_ctrl = RobotControl()
robot_ctrl.get_laser_summit()
3

I did copy robot_control_class.py as instructed and the functions were working as per Unit 1 and Unit 2 of the Python Basics course. I could not have done these without the robot_control_class.py

I happened to save the robot_control_class.py to my notepad and I have it as a reference.

Just NOW I repeated the copy instruction again, and NOW I see the proper functions for the summit robot. It has definitely changed since I first copied that file. I think I first copied it a month ago, I’m not sure.

Did you guys change it recently to include Summit functions ? that would explain it.

4

Hi James,

Oh, I see. We are constantly improving the courses, and this definitely would be the case. Apologies for the inconvenience.

5

Regarding this same exercise 3.2 in unit 3, did you know the Run Cell (for the left-most panel where the instructions/sample code is) gives an error. The code works when running from my python file, but not when clicking Run Cell. The following error output: Try it. Maybe something’s wrong on my end?

ImportErrorTraceback (most recent call last)
<ipython-input-4-e147d78008a1> in <module>()
----> 1 from robot_control_class import RobotControl
      2 
      3 robotcontrol = RobotControl()
      4 
      5 def get_laser_values(a,b,c):

ImportError: No module named robot_control_class
6

Oh, no, let’s have a look at that, but better to make it a separate thread…New thread: