PYTHON := python3
else ifneq (, $(shell which python))
PYTHON_VERSION_FULL := $(wordlist 2,4,$(subst ., ,$(shell python --version 2>&1)))
PYTHON := python3
else ifneq (, $(shell which python))
PYTHON_VERSION_FULL := $(wordlist 2,4,$(subst ., ,$(shell python --version 2>&1)))