mac “python“: executable file not found in $PATH

Apple removed old Python 2 from macOS 12.3. Arduino ESP32 depends on Python interpreter.

Build in Arduino IDE may fail with error:

1

"python": executable file not found in $PATH

It’s sufficient to change name of binary to python3

Edit file

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~/Library/Arduino15/packages/esp32/hardware/esp32/2.0.2/platform.txt

Change the line:

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tools.gen_esp32part.cmd=python "{runtime.platform.path}/tools/gen_esp32part.py"

To line with python3:

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tools.gen_esp32part.cmd=python3 "{runtime.platform.path}/tools/gen_esp32part.py"

Re-open Arduino IDE and build the project.

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