mirror of
https://gitlab.com/ytdl-org/youtube-dl.git
synced 2025-11-03 07:57:08 -05:00
399 lines
12 KiB
Python
399 lines
12 KiB
Python
from __future__ import unicode_literals
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import getpass
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import optparse
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import os
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import re
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import socket
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import subprocess
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import sys
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try:
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import urllib.request as compat_urllib_request
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except ImportError: # Python 2
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import urllib2 as compat_urllib_request
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try:
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import urllib.error as compat_urllib_error
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except ImportError: # Python 2
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import urllib2 as compat_urllib_error
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try:
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import urllib.parse as compat_urllib_parse
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except ImportError: # Python 2
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import urllib as compat_urllib_parse
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try:
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from urllib.parse import urlparse as compat_urllib_parse_urlparse
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except ImportError: # Python 2
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from urlparse import urlparse as compat_urllib_parse_urlparse
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try:
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import urllib.parse as compat_urlparse
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except ImportError: # Python 2
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import urlparse as compat_urlparse
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try:
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import http.cookiejar as compat_cookiejar
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except ImportError: # Python 2
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import cookielib as compat_cookiejar
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try:
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import html.entities as compat_html_entities
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except ImportError: # Python 2
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import htmlentitydefs as compat_html_entities
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try:
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import html.parser as compat_html_parser
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except ImportError: # Python 2
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import HTMLParser as compat_html_parser
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try:
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import http.client as compat_http_client
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except ImportError: # Python 2
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import httplib as compat_http_client
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try:
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from urllib.error import HTTPError as compat_HTTPError
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except ImportError: # Python 2
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from urllib2 import HTTPError as compat_HTTPError
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try:
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from urllib.request import urlretrieve as compat_urlretrieve
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except ImportError: # Python 2
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from urllib import urlretrieve as compat_urlretrieve
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try:
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from subprocess import DEVNULL
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compat_subprocess_get_DEVNULL = lambda: DEVNULL
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except ImportError:
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compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w')
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try:
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import http.server as compat_http_server
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except ImportError:
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import BaseHTTPServer as compat_http_server
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try:
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from urllib.parse import unquote as compat_urllib_parse_unquote
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except ImportError:
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def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
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if string == '':
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return string
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res = string.split('%')
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if len(res) == 1:
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return string
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if encoding is None:
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encoding = 'utf-8'
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if errors is None:
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errors = 'replace'
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# pct_sequence: contiguous sequence of percent-encoded bytes, decoded
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pct_sequence = b''
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string = res[0]
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for item in res[1:]:
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try:
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if not item:
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raise ValueError
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pct_sequence += item[:2].decode('hex')
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rest = item[2:]
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if not rest:
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# This segment was just a single percent-encoded character.
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# May be part of a sequence of code units, so delay decoding.
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# (Stored in pct_sequence).
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continue
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except ValueError:
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rest = '%' + item
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# Encountered non-percent-encoded characters. Flush the current
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# pct_sequence.
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string += pct_sequence.decode(encoding, errors) + rest
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pct_sequence = b''
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if pct_sequence:
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# Flush the final pct_sequence
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string += pct_sequence.decode(encoding, errors)
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return string
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try:
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compat_str = unicode # Python 2
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except NameError:
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compat_str = str
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try:
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compat_basestring = basestring # Python 2
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except NameError:
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compat_basestring = str
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try:
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compat_chr = unichr # Python 2
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except NameError:
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compat_chr = chr
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try:
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from xml.etree.ElementTree import ParseError as compat_xml_parse_error
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except ImportError: # Python 2.6
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from xml.parsers.expat import ExpatError as compat_xml_parse_error
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try:
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from urllib.parse import parse_qs as compat_parse_qs
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except ImportError: # Python 2
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# HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
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# Python 2's version is apparently totally broken
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def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
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encoding='utf-8', errors='replace'):
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qs, _coerce_result = qs, compat_str
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pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
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r = []
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for name_value in pairs:
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if not name_value and not strict_parsing:
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continue
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nv = name_value.split('=', 1)
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if len(nv) != 2:
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if strict_parsing:
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raise ValueError("bad query field: %r" % (name_value,))
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# Handle case of a control-name with no equal sign
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if keep_blank_values:
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nv.append('')
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else:
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continue
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if len(nv[1]) or keep_blank_values:
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name = nv[0].replace('+', ' ')
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name = compat_urllib_parse_unquote(
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name, encoding=encoding, errors=errors)
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name = _coerce_result(name)
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value = nv[1].replace('+', ' ')
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value = compat_urllib_parse_unquote(
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value, encoding=encoding, errors=errors)
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value = _coerce_result(value)
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r.append((name, value))
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return r
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def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
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encoding='utf-8', errors='replace'):
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parsed_result = {}
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pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
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encoding=encoding, errors=errors)
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for name, value in pairs:
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if name in parsed_result:
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parsed_result[name].append(value)
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else:
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parsed_result[name] = [value]
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return parsed_result
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try:
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from shlex import quote as shlex_quote
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except ImportError: # Python < 3.3
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def shlex_quote(s):
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if re.match(r'^[-_\w./]+$', s):
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return s
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else:
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return "'" + s.replace("'", "'\"'\"'") + "'"
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def compat_ord(c):
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if type(c) is int:
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return c
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else:
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return ord(c)
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if sys.version_info >= (3, 0):
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compat_getenv = os.getenv
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compat_expanduser = os.path.expanduser
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else:
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# Environment variables should be decoded with filesystem encoding.
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# Otherwise it will fail if any non-ASCII characters present (see #3854 #3217 #2918)
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def compat_getenv(key, default=None):
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from .utils import get_filesystem_encoding
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env = os.getenv(key, default)
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if env:
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env = env.decode(get_filesystem_encoding())
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return env
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# HACK: The default implementations of os.path.expanduser from cpython do not decode
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# environment variables with filesystem encoding. We will work around this by
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# providing adjusted implementations.
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# The following are os.path.expanduser implementations from cpython 2.7.8 stdlib
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# for different platforms with correct environment variables decoding.
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if os.name == 'posix':
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def compat_expanduser(path):
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"""Expand ~ and ~user constructions. If user or $HOME is unknown,
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do nothing."""
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if not path.startswith('~'):
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return path
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i = path.find('/', 1)
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if i < 0:
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i = len(path)
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if i == 1:
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if 'HOME' not in os.environ:
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import pwd
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userhome = pwd.getpwuid(os.getuid()).pw_dir
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else:
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userhome = compat_getenv('HOME')
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else:
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import pwd
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try:
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pwent = pwd.getpwnam(path[1:i])
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except KeyError:
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return path
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userhome = pwent.pw_dir
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userhome = userhome.rstrip('/')
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return (userhome + path[i:]) or '/'
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elif os.name == 'nt' or os.name == 'ce':
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def compat_expanduser(path):
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"""Expand ~ and ~user constructs.
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If user or $HOME is unknown, do nothing."""
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if path[:1] != '~':
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return path
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i, n = 1, len(path)
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while i < n and path[i] not in '/\\':
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i = i + 1
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if 'HOME' in os.environ:
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userhome = compat_getenv('HOME')
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elif 'USERPROFILE' in os.environ:
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userhome = compat_getenv('USERPROFILE')
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elif 'HOMEPATH' not in os.environ:
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return path
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else:
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try:
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drive = compat_getenv('HOMEDRIVE')
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except KeyError:
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drive = ''
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userhome = os.path.join(drive, compat_getenv('HOMEPATH'))
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if i != 1: # ~user
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userhome = os.path.join(os.path.dirname(userhome), path[1:i])
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return userhome + path[i:]
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else:
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compat_expanduser = os.path.expanduser
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if sys.version_info < (3, 0):
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def compat_print(s):
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from .utils import preferredencoding
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print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
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else:
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def compat_print(s):
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assert isinstance(s, compat_str)
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print(s)
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try:
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subprocess_check_output = subprocess.check_output
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except AttributeError:
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def subprocess_check_output(*args, **kwargs):
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assert 'input' not in kwargs
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p = subprocess.Popen(*args, stdout=subprocess.PIPE, **kwargs)
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output, _ = p.communicate()
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ret = p.poll()
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if ret:
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raise subprocess.CalledProcessError(ret, p.args, output=output)
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return output
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if sys.version_info < (3, 0) and sys.platform == 'win32':
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def compat_getpass(prompt, *args, **kwargs):
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if isinstance(prompt, compat_str):
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from .utils import preferredencoding
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prompt = prompt.encode(preferredencoding())
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return getpass.getpass(prompt, *args, **kwargs)
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else:
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compat_getpass = getpass.getpass
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# Old 2.6 and 2.7 releases require kwargs to be bytes
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try:
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def _testfunc(x):
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pass
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_testfunc(**{'x': 0})
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except TypeError:
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def compat_kwargs(kwargs):
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return dict((bytes(k), v) for k, v in kwargs.items())
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else:
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compat_kwargs = lambda kwargs: kwargs
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if sys.version_info < (2, 7):
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def compat_socket_create_connection(address, timeout, source_address=None):
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host, port = address
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err = None
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for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM):
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af, socktype, proto, canonname, sa = res
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sock = None
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try:
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sock = socket.socket(af, socktype, proto)
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sock.settimeout(timeout)
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if source_address:
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sock.bind(source_address)
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sock.connect(sa)
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return sock
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except socket.error as _:
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err = _
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if sock is not None:
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sock.close()
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if err is not None:
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raise err
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else:
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raise socket.error("getaddrinfo returns an empty list")
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else:
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compat_socket_create_connection = socket.create_connection
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# Fix https://github.com/rg3/youtube-dl/issues/4223
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# See http://bugs.python.org/issue9161 for what is broken
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def workaround_optparse_bug9161():
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op = optparse.OptionParser()
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og = optparse.OptionGroup(op, 'foo')
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try:
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og.add_option('-t')
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except TypeError:
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real_add_option = optparse.OptionGroup.add_option
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def _compat_add_option(self, *args, **kwargs):
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enc = lambda v: (
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v.encode('ascii', 'replace') if isinstance(v, compat_str)
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else v)
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bargs = [enc(a) for a in args]
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bkwargs = dict(
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(k, enc(v)) for k, v in kwargs.items())
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return real_add_option(self, *bargs, **bkwargs)
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optparse.OptionGroup.add_option = _compat_add_option
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__all__ = [
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'compat_HTTPError',
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'compat_basestring',
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'compat_chr',
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'compat_cookiejar',
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'compat_expanduser',
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'compat_getenv',
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'compat_getpass',
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'compat_html_entities',
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'compat_html_parser',
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'compat_http_client',
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'compat_http_server',
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'compat_kwargs',
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'compat_ord',
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'compat_parse_qs',
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'compat_print',
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'compat_socket_create_connection',
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'compat_str',
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'compat_subprocess_get_DEVNULL',
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'compat_urllib_error',
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'compat_urllib_parse',
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'compat_urllib_parse_unquote',
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'compat_urllib_parse_urlparse',
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'compat_urllib_request',
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'compat_urlparse',
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'compat_urlretrieve',
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'compat_xml_parse_error',
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'shlex_quote',
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'subprocess_check_output',
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'workaround_optparse_bug9161',
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]
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