#!/usr/bin/env python3

import os
import os.path
import pprint
from collections import Counter

base_path = '/opt/music/alternatives'

possible_dupes = Counter({})

for sub_path in os.listdir(base_path):
	for root, dirs, files in os.walk(os.path.join(base_path, sub_path)):
		for file in files:
			to_check = os.path.join(root, os.path.splitext(file)[0])
			to_check = to_check.lower() # make the check case insensitive
			possible_dupes.update([to_check,]) # ensure counter doesnt unpack a path string into distinct letters

duplicates = {key:value for key, value in possible_dupes.items() if value > 1}
pprint.pprint(duplicates)