Snakefile

configfile: "config.json"

rule target:
	input: expand("--a {a} --b {b} --c {c}", a=config["a"], b=config["b"], c=config["c"])

rule neural_network:
	output: expand("--a {a} --b {b} --c {c}", a=config["a"], b=config["b"], c=config["c"])
	shell: "python a.py {output}"