playlist.dump() fails when saving file to root folder on Windows.

[arix00]

I guess nobody saves m3u8 on root directory but r: is a ramdisk on my system and following code will fail

playlist.dump("r:/aaa.m3u8")

with access denied error.

m3u8/m3u8/model.py

Lines 369 to 376 in 50963a8

	def _create_sub_directories(self, filename):
	basename = os.path.dirname(filename)
	try:
	if basename:
	os.makedirs(basename)
	except OSError as error:
	if error.errno != errno.EEXIST:
	raise

so maybe add exist_ok=True? or an extra check for root folder?

[bbayles]

#292 should fix this. Can you confirm?

[arix00]

Thanks. Tested and all good now.