import os

# c:\äöü\test.txt
if os.path.sep == '\\':
	path_byte_dir = b'c:\\\xe4\xf6\xfc'
	path_byte = b'c:\\\xe4\xf6\xfc//test.txt'
else:
	path_byte_dir = b'/tmp/\xe4\xf6\xfc'
	path_byte = b'/tmp/\xe4\xf6\xfc//test.txt'

print("Testing...")

if not os.path.exists(path_byte_dir):
	os.mkdir(path_byte_dir)

path_utf = path_byte.decode('utf8', 'surrogateescape')

# write
f = open(path_byte, 'w')
f.write("testing\n")
f.close()

# This wont fail, just to show conversion is correct.
if path_byte != path_utf.encode('utf8', 'surrogateescape'):
	raise Exception("error converting bacl")

# read as surrogate escaoped. raises an error on windows xp but not linux
# IOError: [Errno 2] No such file or directory: 'c:\\\udce4\udcf6\udcfc//test.txt'
f = open(path_utf, 'r')

print("It Worked!")