nzbToMedia/libs/common/musicbrainzngs/util.py
2018-12-16 13:50:27 -05:00

45 lines
1.4 KiB
Python

# This file is part of the musicbrainzngs library
# Copyright (C) Alastair Porter, Adrian Sampson, and others
# This file is distributed under a BSD-2-Clause type license.
# See the COPYING file for more information.
import sys
import locale
import xml.etree.ElementTree as ET
from . import compat
def _unicode(string, encoding=None):
"""Try to decode byte strings to unicode.
This can only be a guess, but this might be better than failing.
It is safe to use this on numbers or strings that are already unicode.
"""
if isinstance(string, compat.unicode):
unicode_string = string
elif isinstance(string, compat.bytes):
# use given encoding, stdin, preferred until something != None is found
if encoding is None:
encoding = sys.stdin.encoding
if encoding is None:
encoding = locale.getpreferredencoding()
unicode_string = string.decode(encoding, "ignore")
else:
unicode_string = compat.unicode(string)
return unicode_string.replace('\x00', '').strip()
def bytes_to_elementtree(bytes_or_file):
"""Given a bytestring or a file-like object that will produce them,
parse and return an ElementTree.
"""
if isinstance(bytes_or_file, compat.basestring):
s = bytes_or_file
else:
s = bytes_or_file.read()
if compat.is_py3:
s = _unicode(s, "utf-8")
f = compat.StringIO(s)
tree = ET.ElementTree(file=f)
return tree