read_dataset fails silently if no .tsv files are found

[anweiteck]

See TODO, line60:

nano-oscillator/analysis/read.py

Lines 52 to 67 in 6452a73

	def read_dataset(path: str) -> list[pd.DataFrame]:
	"""Reads a dataset into a list of `AttributedData`."""
	dataset_data = []
	for root, _, files in os.walk(path):
	for file in files:
	name, ext = os.path.splitext(file)
	#TODO: raise FileNotFound error
	if ext.endswith("tsv"):
	dataset_data.append(
	AttributedData(
	data=read_data(os.path.join(root, file)),
	title=name
	)
	)