EXAMPLES = $(wildcard *.py)
FIRSTLOGS = ${EXAMPLES:.py=_1.log}
LASTLOGS = ${EXAMPLES:.py=_2.log}

.PHONY: all
.SECONDAY: $(FIRSTLOGS)

all: $(LASTLOGS)

%_1.log: %.py
	rm -f *.json *.pickle
	python3 $< > $@

%_2.log: %.py %_1.log
	python3 $< > $@
	rm -f *.json *.pickle

clean:
	@echo "\e[1m  * Example logs...\e[0m"
	@rm -f $(FIRSTLOGS) $(LASTLOGS) *.json *.pickle