X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/99a6f8745584b59fe0fa1f5e81f6c3667bd3fb2b..96981814751d51f37fe7347060de3a51c982f5ec:/youtube_dl/compat.py

diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py
index 646c9d7..d1b86bd 100644
--- a/youtube_dl/compat.py
+++ b/youtube_dl/compat.py
@@ -2364,7 +2364,7 @@ except ImportError:  # Python 2
 
     # HACK: The following are the correct unquote_to_bytes, unquote and unquote_plus
     # implementations from cpython 3.4.3's stdlib. Python 2's version
-    # is apparently broken (see https://github.com/rg3/youtube-dl/pull/6244)
+    # is apparently broken (see https://github.com/ytdl-org/youtube-dl/pull/6244)
 
     def compat_urllib_parse_unquote_to_bytes(string):
         """unquote_to_bytes('abc%20def') -> b'abc def'."""
@@ -2508,6 +2508,15 @@ class _TreeBuilder(etree.TreeBuilder):
         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:
     def compat_etree_fromstring(text):
         return etree.XML(text, parser=etree.XMLParser(target=_TreeBuilder()))
@@ -2640,9 +2649,9 @@ else:
 
 try:
     args = shlex.split('中文')
-    assert (isinstance(args, list) and
-            isinstance(args[0], compat_str) and
-            args[0] == '中文')
+    assert (isinstance(args, list)
+            and isinstance(args[0], compat_str)
+            and args[0] == '中文')
     compat_shlex_split = shlex.split
 except (AssertionError, UnicodeEncodeError):
     # Working around shlex issue with unicode strings on some python 2
@@ -2745,6 +2754,17 @@ else:
         compat_expanduser = os.path.expanduser
 
 
+if compat_os_name == 'nt' and sys.version_info < (3, 8):
+    # os.path.realpath on Windows does not follow symbolic links
+    # prior to Python 3.8 (see https://bugs.python.org/issue9949)
+    def compat_realpath(path):
+        while os.path.islink(path):
+            path = os.path.abspath(os.readlink(path))
+        return path
+else:
+    compat_realpath = os.path.realpath
+
+
 if sys.version_info < (3, 0):
     def compat_print(s):
         from .utils import preferredencoding
@@ -2787,6 +2807,12 @@ except NameError:  # Python 3
     compat_numeric_types = (int, float, complex)
 
 
+try:
+    compat_integer_types = (int, long)
+except NameError:  # Python 3
+    compat_integer_types = (int, )
+
+
 if sys.version_info < (2, 7):
     def compat_socket_create_connection(address, timeout, source_address=None):
         host, port = address
@@ -2813,7 +2839,7 @@ else:
     compat_socket_create_connection = socket.create_connection
 
 
-# Fix https://github.com/rg3/youtube-dl/issues/4223
+# Fix https://github.com/ytdl-org/youtube-dl/issues/4223
 # See http://bugs.python.org/issue9161 for what is broken
 def workaround_optparse_bug9161():
     op = optparse.OptionParser()
@@ -2897,9 +2923,24 @@ except TypeError:
         if isinstance(spec, compat_str):
             spec = spec.encode('ascii')
         return struct.unpack(spec, *args)
+
+    class compat_Struct(struct.Struct):
+        def __init__(self, fmt):
+            if isinstance(fmt, compat_str):
+                fmt = fmt.encode('ascii')
+            super(compat_Struct, self).__init__(fmt)
 else:
     compat_struct_pack = struct.pack
     compat_struct_unpack = struct.unpack
+    if platform.python_implementation() == 'IronPython' and sys.version_info < (2, 7, 8):
+        class compat_Struct(struct.Struct):
+            def unpack(self, string):
+                if not isinstance(string, buffer):  # noqa: F821
+                    string = buffer(string)  # noqa: F821
+                return super(compat_Struct, self).unpack(string)
+    else:
+        compat_Struct = struct.Struct
+
 
 try:
     from future_builtins import zip as compat_zip
@@ -2923,7 +2964,7 @@ if platform.python_implementation() == 'PyPy' and sys.pypy_version_info < (5, 4,
     # PyPy2 prior to version 5.4.0 expects byte strings as Windows function
     # names, see the original PyPy issue [1] and the youtube-dl one [2].
     # 1. https://bitbucket.org/pypy/pypy/issues/2360/windows-ctypescdll-typeerror-function-name
-    # 2. https://github.com/rg3/youtube-dl/pull/4392
+    # 2. https://github.com/ytdl-org/youtube-dl/pull/4392
     def compat_ctypes_WINFUNCTYPE(*args, **kwargs):
         real = ctypes.WINFUNCTYPE(*args, **kwargs)
 
@@ -2941,12 +2982,14 @@ __all__ = [
     'compat_HTMLParseError',
     'compat_HTMLParser',
     'compat_HTTPError',
+    'compat_Struct',
     'compat_b64decode',
     'compat_basestring',
     'compat_chr',
     'compat_cookiejar',
     'compat_cookies',
     'compat_ctypes_WINFUNCTYPE',
+    'compat_etree_Element',
     'compat_etree_fromstring',
     'compat_etree_register_namespace',
     'compat_expanduser',
@@ -2958,6 +3001,7 @@ __all__ = [
     'compat_http_client',
     'compat_http_server',
     'compat_input',
+    'compat_integer_types',
     'compat_itertools_count',
     'compat_kwargs',
     'compat_numeric_types',
@@ -2965,6 +3009,7 @@ __all__ = [
     'compat_os_name',
     'compat_parse_qs',
     'compat_print',
+    'compat_realpath',
     'compat_setenv',
     'compat_shlex_quote',
     'compat_shlex_split',