After this error happened, also the simpliest code isn’t working $ python3 t.py ^CTraceback (most recent call last): File>'/usr/local/lib/python3.7/dist-packages/grovepi-1.4.1-p圓.7.egg/grovepi.py', line 227, in >read_i2c_block File “/usr/local/lib/python3.7/dist-packages/Dexter_AutoDetection_and_I2C_Mutex->0.0.0-p圓.7.egg/di_i2c.py”, line 373, in read_list File “/usr/local/lib/python3.7/dist->packages/Dexter_AutoDetection_and_I2C_Mutex-0.0.0-p圓.7.egg/di_i2c.py”, line 129, in transfer File >'/usr/local/lib/python3.7/dist-packages/Dexter_AutoDetection_and_I2C_Mutex-0.0.0->p圓.7.egg/di_mutex.py', line 48, in acquire KeyboardInterruptĭuring handling of the above exception, another exception occurred: I think it has something to do with threading. It worked very well, till a moment i don’t remember exactly.