FileNotFoundError running outside git repository

[philippesamuel]

Running on Windows outside a git repo I got a FileNotFoundError here:

maggot/maggot/experiment.py

Lines 194 to 203 in 2f93644

	def _save_git_commit_hash(self):
	try:
	label = subprocess.check_output(
	["git", "rev-parse", "HEAD"],
	stderr=subprocess.PIPE
	)
	except subprocess.CalledProcessError:
	# skip this step if current directory is
	# not a git repository
	return

[philippesamuel]

Following modification solved it for me:
except subprocess.CalledProcessError: -> except (FileNotFoundError, subprocess.CalledProcessError):