In the documentation it suggested to create a rule that grants access, but it hasn't worked for me. : Access denied (insufficient permissions) Raise USBError(_strerror(ret), ret, _libusb_errno) _check(_lib.libusb_open(vid, byref(self.handle)))ДЇile '/home/testerdell/.local/lib/python2.7/site-packages/usb/backend/libusb1.py', line 595, in _check Self.handle = _device(v)ДЇile '/home/testerdell/.local/lib/python2.7/site-packages/usb/backend/libusb1.py', line 786, in open_deviceДЇile '/home/testerdell/.local/lib/python2.7/site-packages/usb/backend/libusb1.py', line 643, in _init_ Just like in the instructions, I enter: from escpos.printer import UsbД«ut the error appears Traceback (most recent call last):ДЇile '/home/testerdell/.local/lib/python2.7/site-packages/escpos/printer.py', line 51, in _init_ДЇile '/home/testerdell/.local/lib/python2.7/site-packages/escpos/printer.py', line 62, in openД¬heck_driver = _kernel_driver_active(0)ДЇile '/home/testerdell/.local/lib/python2.7/site-packages/usb/core.py', line 1061, in is_kernel_driver_activeДЇile '/home/testerdell/.local/lib/python2.7/site-packages/usb/core.py', line 102, in wrapperДЇile '/home/testerdell/.local/lib/python2.7/site-packages/usb/core.py', line 120, in managed_open The printer is a Rongta RP58, and it's idVendor and idProduct were found through the lsusb command (0fe6:811e). I am running Ubuntu and have the pyusb module installed. So I have been following these documentations so that I can print on my thermal printer through python.

Denied access to usb