+from __future__ import unicode_literals
+
+import getpass
+import optparse
+import os
+import subprocess
+import sys
+
+
+try:
+ import urllib.request as compat_urllib_request
+except ImportError: # Python 2
+ import urllib2 as compat_urllib_request
+
+try:
+ import urllib.error as compat_urllib_error
+except ImportError: # Python 2
+ import urllib2 as compat_urllib_error
+
+try:
+ import urllib.parse as compat_urllib_parse
+except ImportError: # Python 2
+ import urllib as compat_urllib_parse
+
+try:
+ from urllib.parse import urlparse as compat_urllib_parse_urlparse
+except ImportError: # Python 2
+ from urlparse import urlparse as compat_urllib_parse_urlparse
+
+try:
+ import urllib.parse as compat_urlparse
+except ImportError: # Python 2
+ import urlparse as compat_urlparse
+
+try:
+ import http.cookiejar as compat_cookiejar
+except ImportError: # Python 2
+ import cookielib as compat_cookiejar
+
+try:
+ import html.entities as compat_html_entities
+except ImportError: # Python 2
+ import htmlentitydefs as compat_html_entities
+
+try:
+ import html.parser as compat_html_parser
+except ImportError: # Python 2
+ import HTMLParser as compat_html_parser
+
+try:
+ import http.client as compat_http_client
+except ImportError: # Python 2
+ import httplib as compat_http_client
+
+try:
+ from urllib.error import HTTPError as compat_HTTPError
+except ImportError: # Python 2
+ from urllib2 import HTTPError as compat_HTTPError
+
+try:
+ from urllib.request import urlretrieve as compat_urlretrieve
+except ImportError: # Python 2
+ from urllib import urlretrieve as compat_urlretrieve
+
+
+try:
+ from subprocess import DEVNULL
+ compat_subprocess_get_DEVNULL = lambda: DEVNULL
+except ImportError:
+ compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w')
+
+try:
+ from urllib.parse import unquote as compat_urllib_parse_unquote
+except ImportError:
+ def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
+ if string == '':
+ return string
+ res = string.split('%')
+ if len(res) == 1:
+ return string
+ if encoding is None:
+ encoding = 'utf-8'
+ if errors is None:
+ errors = 'replace'
+ # pct_sequence: contiguous sequence of percent-encoded bytes, decoded
+ pct_sequence = b''
+ string = res[0]
+ for item in res[1:]:
+ try:
+ if not item:
+ raise ValueError
+ pct_sequence += item[:2].decode('hex')
+ rest = item[2:]
+ if not rest:
+ # This segment was just a single percent-encoded character.
+ # May be part of a sequence of code units, so delay decoding.
+ # (Stored in pct_sequence).
+ continue
+ except ValueError:
+ rest = '%' + item
+ # Encountered non-percent-encoded characters. Flush the current
+ # pct_sequence.
+ string += pct_sequence.decode(encoding, errors) + rest
+ pct_sequence = b''
+ if pct_sequence:
+ # Flush the final pct_sequence
+ string += pct_sequence.decode(encoding, errors)
+ return string
+
+
+try:
+ from urllib.parse import parse_qs as compat_parse_qs
+except ImportError: # Python 2
+ # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
+ # Python 2's version is apparently totally broken
+
+ def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
+ encoding='utf-8', errors='replace'):
+ qs, _coerce_result = qs, unicode
+ pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
+ r = []
+ for name_value in pairs:
+ if not name_value and not strict_parsing:
+ continue
+ nv = name_value.split('=', 1)
+ if len(nv) != 2:
+ if strict_parsing:
+ raise ValueError("bad query field: %r" % (name_value,))
+ # Handle case of a control-name with no equal sign
+ if keep_blank_values:
+ nv.append('')
+ else:
+ continue
+ if len(nv[1]) or keep_blank_values:
+ name = nv[0].replace('+', ' ')
+ name = compat_urllib_parse_unquote(
+ name, encoding=encoding, errors=errors)
+ name = _coerce_result(name)
+ value = nv[1].replace('+', ' ')
+ value = compat_urllib_parse_unquote(
+ value, encoding=encoding, errors=errors)
+ value = _coerce_result(value)
+ r.append((name, value))
+ return r
+
+ def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
+ encoding='utf-8', errors='replace'):
+ parsed_result = {}
+ pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
+ encoding=encoding, errors=errors)
+ for name, value in pairs:
+ if name in parsed_result:
+ parsed_result[name].append(value)
+ else:
+ parsed_result[name] = [value]
+ return parsed_result
+
+try:
+ compat_str = unicode # Python 2
+except NameError:
+ compat_str = str
+
+try:
+ compat_chr = unichr # Python 2
+except NameError:
+ compat_chr = chr
+
+try:
+ from xml.etree.ElementTree import ParseError as compat_xml_parse_error
+except ImportError: # Python 2.6
+ from xml.parsers.expat import ExpatError as compat_xml_parse_error
+
+try:
+ from shlex import quote as shlex_quote
+except ImportError: # Python < 3.3
+ def shlex_quote(s):
+ return "'" + s.replace("'", "'\"'\"'") + "'"
+
+
+def compat_ord(c):
+ if type(c) is int: return c
+ else: return ord(c)
+
+
+if sys.version_info >= (3, 0):
+ compat_getenv = os.getenv
+ compat_expanduser = os.path.expanduser
+else:
+ # Environment variables should be decoded with filesystem encoding.
+ # Otherwise it will fail if any non-ASCII characters present (see #3854 #3217 #2918)
+
+ def compat_getenv(key, default=None):
+ from .utils import get_filesystem_encoding
+ env = os.getenv(key, default)
+ if env:
+ env = env.decode(get_filesystem_encoding())
+ return env
+
+ # HACK: The default implementations of os.path.expanduser from cpython do not decode
+ # environment variables with filesystem encoding. We will work around this by
+ # providing adjusted implementations.
+ # The following are os.path.expanduser implementations from cpython 2.7.8 stdlib
+ # for different platforms with correct environment variables decoding.
+
+ if os.name == 'posix':
+ def compat_expanduser(path):
+ """Expand ~ and ~user constructions. If user or $HOME is unknown,
+ do nothing."""
+ if not path.startswith('~'):
+ return path
+ i = path.find('/', 1)
+ if i < 0:
+ i = len(path)
+ if i == 1:
+ if 'HOME' not in os.environ:
+ import pwd
+ userhome = pwd.getpwuid(os.getuid()).pw_dir
+ else:
+ userhome = compat_getenv('HOME')
+ else:
+ import pwd
+ try:
+ pwent = pwd.getpwnam(path[1:i])
+ except KeyError:
+ return path
+ userhome = pwent.pw_dir
+ userhome = userhome.rstrip('/')
+ return (userhome + path[i:]) or '/'
+ elif os.name == 'nt' or os.name == 'ce':
+ def compat_expanduser(path):
+ """Expand ~ and ~user constructs.
+
+ If user or $HOME is unknown, do nothing."""
+ if path[:1] != '~':
+ return path
+ i, n = 1, len(path)
+ while i < n and path[i] not in '/\\':
+ i = i + 1
+
+ if 'HOME' in os.environ:
+ userhome = compat_getenv('HOME')
+ elif 'USERPROFILE' in os.environ:
+ userhome = compat_getenv('USERPROFILE')
+ elif not 'HOMEPATH' in os.environ:
+ return path
+ else:
+ try:
+ drive = compat_getenv('HOMEDRIVE')
+ except KeyError:
+ drive = ''
+ userhome = os.path.join(drive, compat_getenv('HOMEPATH'))
+
+ if i != 1: #~user
+ userhome = os.path.join(os.path.dirname(userhome), path[1:i])
+
+ return userhome + path[i:]
+ else:
+ compat_expanduser = os.path.expanduser
+
+
+if sys.version_info < (3, 0):
+ def compat_print(s):
+ from .utils import preferredencoding
+ print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
+else:
+ def compat_print(s):
+ assert type(s) == type(u'')
+ print(s)
+
+
+try:
+ subprocess_check_output = subprocess.check_output
+except AttributeError:
+ def subprocess_check_output(*args, **kwargs):
+ assert 'input' not in kwargs
+ p = subprocess.Popen(*args, stdout=subprocess.PIPE, **kwargs)
+ output, _ = p.communicate()
+ ret = p.poll()
+ if ret:
+ raise subprocess.CalledProcessError(ret, p.args, output=output)
+ return output
+
+if sys.version_info < (3, 0) and sys.platform == 'win32':
+ def compat_getpass(prompt, *args, **kwargs):
+ if isinstance(prompt, compat_str):
+ from .utils import preferredencoding
+ prompt = prompt.encode(preferredencoding())
+ return getpass.getpass(prompt, *args, **kwargs)
+else:
+ compat_getpass = getpass.getpass
+
+# Old 2.6 and 2.7 releases require kwargs to be bytes
+try:
+ (lambda x: x)(**{'x': 0})
+except TypeError:
+ def compat_kwargs(kwargs):
+ return dict((bytes(k), v) for k, v in kwargs.items())
+else:
+ compat_kwargs = lambda kwargs: kwargs
+
+
+# Fix https://github.com/rg3/youtube-dl/issues/4223
+# See http://bugs.python.org/issue9161 for what is broken
+def workaround_optparse_bug9161():
+ op = optparse.OptionParser()
+ og = optparse.OptionGroup(op, 'foo')
+ try:
+ og.add_option('-t')
+ except TypeError:
+ real_add_option = optparse.OptionGroup.add_option
+
+ def _compat_add_option(self, *args, **kwargs):
+ enc = lambda v: (
+ v.encode('ascii', 'replace') if isinstance(v, compat_str)
+ else v)
+ bargs = [enc(a) for a in args]
+ bkwargs = dict(
+ (k, enc(v)) for k, v in kwargs.items())
+ return real_add_option(self, *bargs, **bkwargs)
+ optparse.OptionGroup.add_option = _compat_add_option
+
+
+__all__ = [
+ 'compat_HTTPError',
+ 'compat_chr',
+ 'compat_cookiejar',
+ 'compat_expanduser',
+ 'compat_getenv',
+ 'compat_getpass',
+ 'compat_html_entities',
+ 'compat_html_parser',
+ 'compat_http_client',
+ 'compat_kwargs',
+ 'compat_ord',
+ 'compat_parse_qs',
+ 'compat_print',
+ 'compat_str',
+ 'compat_subprocess_get_DEVNULL',
+ 'compat_urllib_error',
+ 'compat_urllib_parse',
+ 'compat_urllib_parse_unquote',
+ 'compat_urllib_parse_urlparse',
+ 'compat_urllib_request',
+ 'compat_urlparse',
+ 'compat_urlretrieve',
+ 'compat_xml_parse_error',
+ 'shlex_quote',
+ 'subprocess_check_output',
+ 'workaround_optparse_bug9161',
+]