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[compat] Introduce compat_etree_Element

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Sergey M․ 2019-03-06 01:18:52 +07:00
parent e5ada4f3ad
commit 399f76870d
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2 changed files with 17 additions and 0 deletions
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7
test/test_compat.py
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@ -13,6 +13,7 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from youtube_dl.compat import ( from youtube_dl.compat import (
compat_getenv, compat_getenv,
compat_setenv, compat_setenv,
compat_etree_Element,
compat_etree_fromstring, compat_etree_fromstring,
compat_expanduser, compat_expanduser,
compat_shlex_split, compat_shlex_split,
@ -90,6 +91,12 @@ class TestCompat(unittest.TestCase):
self.assertEqual(compat_shlex_split('-option "one\ntwo" \n -flag'), ['-option', 'one\ntwo', '-flag']) self.assertEqual(compat_shlex_split('-option "one\ntwo" \n -flag'), ['-option', 'one\ntwo', '-flag'])
self.assertEqual(compat_shlex_split('-val 中文'), ['-val', '中文']) self.assertEqual(compat_shlex_split('-val 中文'), ['-val', '中文'])
def test_compat_etree_Element(self):
try:
compat_etree_Element.text
except AttributeError:
self.fail('compat_etree_Element is not a type')
def test_compat_etree_fromstring(self): def test_compat_etree_fromstring(self):
xml = ''' xml = '''
<root foo="bar" spam="中文"> <root foo="bar" spam="中文">

10
youtube_dl/compat.py
View file

@ -2508,6 +2508,15 @@ class _TreeBuilder(etree.TreeBuilder):
pass pass
try:
# xml.etree.ElementTree.Element is a method in Python <=2.6 and
# the following will crash with:
# TypeError: isinstance() arg 2 must be a class, type, or tuple of classes and types
isinstance(None, xml.etree.ElementTree.Element)
from xml.etree.ElementTree import Element as compat_etree_Element
except TypeError: # Python <=2.6
from xml.etree.ElementTree import _ElementInterface as compat_etree_Element
if sys.version_info[0] >= 3: if sys.version_info[0] >= 3:
def compat_etree_fromstring(text): def compat_etree_fromstring(text):
return etree.XML(text, parser=etree.XMLParser(target=_TreeBuilder())) return etree.XML(text, parser=etree.XMLParser(target=_TreeBuilder()))
@ -2969,6 +2978,7 @@ __all__ = [
'compat_cookiejar', 'compat_cookiejar',
'compat_cookies', 'compat_cookies',
'compat_ctypes_WINFUNCTYPE', 'compat_ctypes_WINFUNCTYPE',
'compat_etree_Element',
'compat_etree_fromstring', 'compat_etree_fromstring',
'compat_etree_register_namespace', 'compat_etree_register_namespace',
'compat_expanduser', 'compat_expanduser',