Hello! I have added the execution permissions for simple.py and I am still getting the error message when executed 'roslaunch my_package my_package_launch_file.launch'. If someone could help it would be much appreciated!

Hi, @varun.guna6 !

Based from the error,can you try adding this line into your simple.py script?

#!/usr/bin/env python3

Regards,
CCA

Tried #!/usr/bin/env python3, still i got the same error

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