Installing board package esp32:esp32...                                        ✓
Installing board package esp8266:esp8266...                                    ✓
Compiling fillValue.ino for arduino:avr:uno...                                 ✓
Compiling fillValue.ino for arduino:sam:arduino_due_x...                       ✓
Compiling fillValue.ino for arduino:samd:arduino_zero_native...                ✓
Compiling fillValue.ino for arduino:avr:leonardo...                            ✓
Compiling fillValue.ino for adafruit:samd:adafruit_metro_m4...                 ✓
Compiling fillValue.ino for esp32:esp32:featheresp32:FlashFreq=80... 
Last command:  $  /usr/local/bin/arduino-cli --format json compile --fqbn esp32:esp32:featheresp32:FlashFreq=80 --warnings all --dry-run /github/home/Arduino/libraries/RunningAverage/examples/fillValue/fillValue.ino
Error during build: exec: "python": executable file not found in $PATH         ✗